NATIONAL GRID PLC NMKCP Financial Statement Data


2025 Q2

Submissions

Field Row 1
adsh 0001004315-25-000012
cik 1004315
name NATIONAL GRID PLC
sic 4922
countryba GB
stprba
cityba LONDON
zipba WC2N 5EH
bas1 1-3 STRAND
bas2
baph (44) 207 004 3220
countryma GB
stprma
cityma LONDON
zipma WC2N 5EH
mas1 1-3 STRAND
mas2
countryinc
stprinc
ein 980367158
former NATIONAL GRID TRANSCO PLC
changed 20021121
afs 1-LAF
wksi 1
fye 0331
form 20-F
period 20250331
fy 2024
fp FY
filed 20250529
accepted 2025-05-29 09:31:00.0
prevrpt 0
detail 1
instance nggtf-20250331_htm.xml
nciks 1
aciks

Description
Field Name Field Description
adsh Accession Number. The 20-character string formed from the 18-digit number assigned by the SEC to each EDGAR submission.
cik Central Index Key (CIK). Ten digit number assigned by the SEC to each registrant that submits filings.
name Name of registrant. This corresponds to the name of the legal entity as recorded in EDGAR as of the filing date.
sic Standard Industrial Classification (SIC). Four digit code assigned by the SEC as of the filing date, indicating the registrant’s type of business.
countryba The ISO 3166-1 country of the registrant's business address.
stprba The state or province of the registrant’s business address, if field countryba is US or CA.
cityba The city of the registrant's business address.
zipba The zip code of the registrant’s business address.
bas1 The first line of the street of the registrant’s business address.
bas2 The second line of the street of the registrant’s business address.
baph The phone number of the registrant’s business address.
countryma The ISO 3166-1 country of the registrant's mailing address.
stprma The state or province of the registrant’s mailing address, if field countryma is US or CA.
cityma The city of the registrant's mailing address.
zipma The zip code of the registrant’s mailing address.
mas1 The first line of the street of the registrant’s mailing address.
mas2 The second line of the street of the registrant’s mailing address.
countryinc The ISO 3166-1 country of incorporation for the registrant.
stprinc The state or province of incorporation for the registrant, if countryinc is US or CA.
ein Employee Identification Number, 9 digit identification number assigned by the Internal Revenue Service to business entities operating in the United States.
former Most recent former name of the registrant, if any.
changed Date of change from the former name, if any.
afs Filer status with the SEC at the time of submission:
1-LAF=Large Accelerated, 2-ACC=Accelerated, 3-SRA=Smaller Reporting Accelerated, 4-NON=Non-Accelerated, 5-SML=Smaller Reporting Filer, NULL=not assigned.
wksi Well Known Seasoned Issuer (WKSI). An issuer that meets specific SEC requirements at some point during a 60-day period preceding the date the issuer satisfies its obligation to update its shelf registration statement.
fye Fiscal Year End Date, rounded to nearest month-end.
form The submission type of the registrant’s filing.
period Balance Sheet Date, rounded to nearest month-end.
fy Fiscal Year Focus (as defined in the EDGAR XBRL Guide Ch. 3.1.8).
fp Fiscal Period Focus (as defined in the EDGAR XBRL Guide Ch. 3.1.8) within Fiscal Year.
filed The date of the registrant’s filing with the Commission.
accepted The acceptance date and time of the registrant’s filing with the Commission.
prevrpt Previous Report – TRUE indicates that the submission information was subsequently amended.
detail TRUE indicates that the XBRL submission contains quantitative disclosures within the footnotes and schedules at the required detail level (e.g., each amount).
instance The name of the submitted XBRL Instance Document. The name often begins with the company ticker symbol.
nciks Number of Central Index Keys (CIK) of registrants (i.e., business units) included in the consolidating entity’s submitted filing.
aciks Additional CIKs of co-registrants included in a consolidating entity’s EDGAR submission, separated by spaces. If there are no other co-registrants (i.e., nciks=1), the value of aciks is NULL. For a very small number of filers, the entire list of co-registrants is too long to fit in the field. Where this is the case, users should refer to the complete submission file for all CIK information.

Numbers

adsh ddate tag value uom qtrs version segments coreg footnote
0001004315-25-000012 20250331 Dividends Paid 1529000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20240331 Adjustments For Fair Value Gains Losses -16000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Adjustments For Fair Value Gains Losses 66000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Adjustments For Provisions -287000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Basic Earnings Loss Per Share 0.5740 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Basic Earnings Loss Per Share From Continuing Operations 0.6860 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Cash And Cash Equivalents 118000000.0000 GBP 0 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20230331 Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 4027000000.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= U K Gas Transmission; Balances consist of cash proceeds received, net of cash disposed.
0001004315-25-000012 20250331 Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 577000000.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= U K Electricity System Operator;
0001004315-25-000012 20250331 Cash Flows From Used In Decrease Increase In Shortterm Deposits And Investments -2606000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Cash Flows From Used In Increase Decrease In Current Borrowings 544000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Cash Flows From Used In Investing Activities Continuing Operations 804000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Cash Flows From Used In Investing Activities Continuing Operations -7601000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Cash Payments For Future Contracts Forward Contracts Option Contracts And Swap Contracts Classified As Investing Activities 362000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Cash Payments For Future Contracts Forward Contracts Option Contracts And Swap Contracts Classified As Investing Activities 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Comprehensive Income 2122000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20240331 Current Contract Liabilities 127000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Current Derivative Financial Assets 44000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Decrease Increase Through Tax On Sharebased Payment Transactions -2000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Decrease Increase Through Tax On Sharebased Payment Transactions 1000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20230331 Effect Of Exchange Rate Changes On Cash And Cash Equivalents 7000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20220331 Equity 1300000000.0000 GBP 0 ifrs/2024 Components Of Equity= Share Premium;
0001004315-25-000012 20230331 Equity 31608000000.0000 GBP 0 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20250331 Equity 1292000000.0000 GBP 0 ifrs/2024 Components Of Equity= Share Premium;
0001004315-25-000012 20240331 Equity Attributable To Owners Of Parent 29867000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Finance Costs 1810000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Finance Costs -3000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Finance Income 450000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Finance Income 449000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Gains Losses On Cash Flow Hedges Before Tax 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Gains Losses On Cash Flow Hedges Before Tax -26000000.0000 GBP 4 ifrs/2024 Types Of Hedges= Cash Flow Hedges; Types Of Risks= Currency Risk;
0001004315-25-000012 20240331 Gains Losses On Cash Flow Hedges Before Tax 0.0000 GBP 4 ifrs/2024 Types Of Hedges= Hedges Of Net Investment In Foreign Operations;
0001004315-25-000012 20240331 Gains Losses On Cost Of Hedging Before Tax 38000000.0000 GBP 4 0001004315-25-000012 Types Of Hedges= Hedges Of Net Investment In Foreign Operations;
0001004315-25-000012 20230331 Gains Losses On Investments In Debt Instruments Measured At Fair Value Through Other Comprehensive Income 0.0000 GBP 4 0001004315-25-000012 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Gains Losses On Investments In Debt Instruments Measured At Fair Value Through Other Comprehensive Income 21000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Gains Losses On Investments In Debt Instruments Measured At Fair Value Through Other Comprehensive Income 13000000.0000 GBP 4 0001004315-25-000012 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Goodwill 188000000.0000 GBP 0 ifrs/2024 Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= National Grid Ventures U S;
0001004315-25-000012 20250331 Goodwill 3205000000.0000 GBP 0 ifrs/2024 Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= New York C G U;
0001004315-25-000012 20240331 Impairment Loss Recognised In Profit Or Loss Trade Receivables 179000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Income Tax Relating To Components Of Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss -78000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Increase Decrease In Cash And Cash Equivalents Through Reclassification To Held For Sale And Discontinued Operations -30000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20230331 Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 5000000.0000 GBP 4 0001004315-25-000012 Components Of Equity= Other Reserves;
0001004315-25-000012 20250331 Increase Decrease Through Transfer To Statutory Reserve 0.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Increase Decrease Through Treasury Share Transactions -7000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Increase Decrease Through Treasury Share Transactions 4000000.0000 GBP 4 ifrs/2024 Components Of Equity= Share Premium;
0001004315-25-000012 20230331 Intangible Assets Other Than Goodwill -1727000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Intangible Assets Other Than Goodwill= Computer Software;
0001004315-25-000012 20230331 Intangible Assets Other Than Goodwill -10000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Intangible Assets Other Than Goodwill= Construction In Progress;
0001004315-25-000012 20230331 Intangible Assets Other Than Goodwill 1714000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Intangible Assets Other Than Goodwill= Licences;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 0.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Intangible Assets Other Than Goodwill= Licences;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 257000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Licences; Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= South Wales;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 3401000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Intangible Assets Other Than Goodwill= Computer Software;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 420000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Licences; Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= South West;
0001004315-25-000012 20240331 Interest Paid Classified As Financing Activities 1330000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20240331 Interest Received Classified As Investing Activities 148000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Issued Capital 638000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Issue Of Equity 135000000.0000 GBP 4 ifrs/2024 Components Of Equity= Issued Capital;
0001004315-25-000012 20250331 Liabilities 68916000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Liabilities Included In Disposal Groups Classified As Held For Sale 1474000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Net Assets Liabilities 354000000.0000 GBP 0 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20240331 Noncontrolling Interests 25000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 1823000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Noncurrent Contract Liabilities 2119000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Other Comprehensive Income -554000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Other Comprehensive Income That Will Be Reclassified To Profit Or Loss Net Of Tax -225000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss Net Of Tax -235000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss Net Of Tax -196000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20220331 Other Reserves -4563000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20220331 Other Reserves 19000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Capital Redemption Reserve;
0001004315-25-000012 20220331 Other Reserves -5165000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Merger Reserve;
0001004315-25-000012 20230331 Other Reserves -3860000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Other Reserves -61000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cash Flow Hedges;
0001004315-25-000012 20240331 Other Reserves 94000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cash Flow Hedges;
0001004315-25-000012 20240331 Other Reserves -11000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cost Of Hedging; Types Of Hedges= Fair Value Hedges; Types Of Risks= Market Risk;
0001004315-25-000012 20240331 Other Reserves 3000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cost Of Hedging; Types Of Hedges= Hedges Of Net Investment In Foreign Operations;
0001004315-25-000012 20250331 Other Reserves -5165000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Merger Reserve;
0001004315-25-000012 20250331 Other Reserves -57000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cost Of Hedging;
0001004315-25-000012 20240331 Other Shortterm Provisions 298000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Payments For Derivatives Contracts Classified As Financing Activities 58000000.0000 GBP 4 0001004315-25-000012 Liabilities Arising From Financing Activities= Financing Derivatives Hedging;
0001004315-25-000012 20230331 Proceeds From Sale Or Issue Of Treasury Shares 16000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Proceeds From Sales Of Property Plant And Equipment Classified As Investing Activities 87000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Profit Loss 7797000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Profit Loss 2902000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Profit Loss 103000000.0000 GBP 4 ifrs/2024 Disposal Group Name= U K Electricity System Operator;
0001004315-25-000012 20240331 Profit Loss From Continuing Operations 54000000.0000 GBP 4 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20250331 Profit Loss From Discontinued Operations 76000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Profit Loss From Operating Activities 741000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= New York Segment;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 541000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= New York Segment;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 1039000000.0000 GBP 4 ifrs/2024 Geographical Areas= U S;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 643000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= New England Segment;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 993000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity Distribution;
0001004315-25-000012 20240331 Profit Loss From Operating Activities -3000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity Transmission;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 362000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= New York Segment;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 975000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity Distribution;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 382000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity System Operator;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 1902000000.0000 GBP 4 ifrs/2024 Geographical Areas= U S;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 1990000000.0000 GBP 4 ifrs/2024 Geographical Areas= U S; Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Profit Loss From Operating Activities -364000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity System Operator;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 5000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= National Grid Ventures;
0001004315-25-000012 20230331 Property Plant And Equipment Including Rightofuse Assets -15926000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Property Plant And Equipment= Machinery;
0001004315-25-000012 20230331 Property Plant And Equipment Including Rightofuse Assets 6760000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Property Plant And Equipment= Construction In Progress;
0001004315-25-000012 20240331 Property Plant And Equipment Including Rightofuse Assets -671000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Property Plant And Equipment= Motor Vehicles And Office Equipment;
0001004315-25-000012 20240331 Property Plant And Equipment Including Rightofuse Assets 87133000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount;
0001004315-25-000012 20240331 Property Plant And Equipment Including Rightofuse Assets 4210000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Property Plant And Equipment= Land And Buildings;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets 4244000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Property Plant And Equipment= Land And Buildings;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets 295000000.0000 GBP 0 ifrs/2024 Classes Of Property Plant And Equipment= Electricity Generation Plant;
0001004315-25-000012 20500331 Property Plant And Equipment Including Rightofuse Assets 0.0000 GBP 0 ifrs/2024 Classes Of Property Plant And Equipment= Liquefied Natural Gas; Scenario= Scenario Forecast;
0001004315-25-000012 20250331 Purchase Of Property Plant And Equipment Classified As Investing Activities 8780000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Revenue 1604000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20230331 Revenue -142000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts;
0001004315-25-000012 20230331 Revenue 1987000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity Transmission;
0001004315-25-000012 20240331 Revenue 0.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Revenue 3788000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity System Operator;
0001004315-25-000012 20240331 Revenue 3753000000.0000 GBP 4 ifrs/2024 Segments= U K Electricity System Operator;
0001004315-25-000012 20250331 Revenue 18378000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Sale Or Issue Of Treasury Shares 16000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20230331 Scrip Dividends Related Share Issue Recognized As Distributions To Owners 3000000.0000 GBP 4 0001004315-25-000012 Components Of Equity= Issued Capital;
0001004315-25-000012 20250331 Share Of Other Comprehensive Income Of Associates And Joint Ventures Accounted For Using Equity Method That Will Be Reclassified To Profit Or Loss Net Of Tax 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Share Of Profit Loss Of Associates And Joint Ventures Accounted For Using Equity Method 37000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Share Of Profit Loss Of Associates And Joint Ventures Accounted For Using Equity Method 25000000.0000 GBP 4 ifrs/2024 Interest In Other Entities= Aggregated Individually Immaterial Associates And Joint Ventures;
0001004315-25-000012 20240331 Share Of Profit Loss Of Associates And Joint Ventures Accounted For Using Equity Method 42000000.0000 GBP 4 ifrs/2024 Joint Ventures= Emerald Energy Venture L L C;
0001004315-25-000012 20240331 Share Premium 1298000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Trade And Other Current Receivables 3415000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Adjustments For Depreciation And Amortisation Expense And Impairment Loss Reversal Of Impairment Loss Recognised In Profit Or Loss 2061000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Adjustments For Fair Value Gains Losses 21000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Adjustments For Increase Decrease In Employee Benefit Liabilities -46000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Basic Earnings Loss Per Share From Continuing Operations 0.5550 GBP 4 ifrs/2024
0001004315-25-000012 20240930 Cash And Cash Equivalents 51000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Disposal Group Name= U K Electricity System Operator;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill -10000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Intangible Assets Other Than Goodwill= Construction In Progress;
0001004315-25-000012 20240331 Current Liabilities 55000000.0000 GBP 0 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20250331 Current Liabilities 39000000.0000 GBP 0 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20250331 Decrease Increase Through Tax On Sharebased Payment Transactions 1000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20240331 Deferred Tax Liabilities 7519000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Dividends Paid 1607000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20240331 Dividends Paid 1718000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20240331 Equity 29867000000.0000 GBP 0 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20240331 Equity 493000000.0000 GBP 0 ifrs/2024 Components Of Equity= Issued Capital;
0001004315-25-000012 20230331 Finance Costs 363000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Finance Income 248000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Finance Income 1000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Gains Losses On Cash Flow Hedges Before Tax 6000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Gains Losses On Cash Flow Hedges Before Tax -12000000.0000 GBP 4 ifrs/2024 Types Of Hedges= Cash Flow Hedges; Types Of Risks= Currency Risk;
0001004315-25-000012 20250331 Gains Losses On Cash Flow Hedges Before Tax 0.0000 GBP 4 ifrs/2024 Types Of Hedges= Hedges Of Net Investment In Foreign Operations;
0001004315-25-000012 20230331 Gains Losses On Cost Of Hedging Before Tax 4000000.0000 GBP 4 0001004315-25-000012 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Gains Losses On Cost Of Hedging Before Tax 0.0000 GBP 4 0001004315-25-000012 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Gains Losses On Cost Of Hedging Before Tax 4000000.0000 GBP 4 0001004315-25-000012 Types Of Hedges= Hedges Of Net Investment In Foreign Operations;
0001004315-25-000012 20240331 Gains Losses On Exchange Differences On Translation Net Of Net Investment Hedge Before Tax -335000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20230331 Gains Losses On Investments In Debt Instruments Measured At Fair Value Through Other Comprehensive Income -25000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Gains Losses On Investments In Debt Instruments Measured At Fair Value Through Other Comprehensive Income -13000000.0000 GBP 4 0001004315-25-000012 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Goodwill 9532000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Impairment Loss Recognised In Profit Or Loss Trade Receivables 200000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Income Taxes Paid Refund Classified As Operating Activities 183000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Income Tax Expense Continuing Operations -159000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items Netting;
0001004315-25-000012 20250331 Income Tax Expense Continuing Operations 821000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Income Tax Relating To Components Of Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss -27000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 5000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 2000000.0000 GBP 4 0001004315-25-000012 Components Of Equity= Other Reserves;
0001004315-25-000012 20250331 Increase Decrease Through Other Movements In Non Controlling Interests Equity -3000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Increase Decrease Through Sharebased Payment Transactions 37000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Increase Decrease Through Treasury Share Transactions 1000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Increase Decrease Through Treasury Share Transactions -4000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 382000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Construction In Progress;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 320000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Gas Business Enablement System;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 420000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Licences; Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= South West;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill -2035000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation;
0001004315-25-000012 20230331 Investment Accounted For Using Equity Method 154000000.0000 GBP 0 ifrs/2024 Significant Investments In Associates= Associates;
0001004315-25-000012 20250331 Liabilities 108000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= National Grid Renewables;
0001004315-25-000012 20250331 Miscellaneous Other Operating Expense 13244000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Net Assets Liabilities 440000000.0000 GBP 0 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20250331 Net Assets Liabilities 37826000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Net Assets Liabilities 429000000.0000 GBP 0 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20240331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 1134000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Segments= U K Electricity System Operator;
0001004315-25-000012 20240331 Noncurrent Provisions For Employee Benefits 593000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Noncurrent Recognised Assets Defined Benefit Plan 2645000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Noncurrent Recognised Assets Defined Benefit Plan 2489000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Other Comprehensive Income -555000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20230331 Other Comprehensive Income -227000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Other Comprehensive Income Before Tax Gains Losses In Respect Of Cash Flow Hedging Of Capital Expenditure -16000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Other Comprehensive Income From Continuing Operations -310000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Other Comprehensive Income That Will Be Reclassified To Profit Or Loss Net Of Tax -114000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Other Longterm Provisions 2811000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Other Noncurrent Liabilities 3000000.0000 GBP 0 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20230331 Other Reserves -5165000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Merger Reserve;
0001004315-25-000012 20250331 Other Reserves 0.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cost Of Hedging; Types Of Hedges= Cash Flow Hedges; Types Of Risks= Currency Risk;
0001004315-25-000012 20250331 Other Reserves 3000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cost Of Hedging; Types Of Hedges= Hedges Of Net Investment In Foreign Operations;
0001004315-25-000012 20250331 Payments For Share Issue Costs 162000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Payments Of Lease Liabilities Classified As Financing Activities 118000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20250331 Payments Of Lease Liabilities Classified As Financing Activities 130000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Proceeds From Borrowings Classified As Financing Activities 3237000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Profit Loss 2291000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Profit Loss 1000000.0000 GBP 4 ifrs/2024 Components Of Equity= Noncontrolling Interests;
0001004315-25-000012 20240331 Profit Loss 178000000.0000 GBP 4 ifrs/2024 Disposal Group Name= U K Electricity System Operator;
0001004315-25-000012 20250331 Profit Loss 2902000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20250331 Profit Loss 60000000.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= N G R And Grain L N G;
0001004315-25-000012 20230331 Profit Loss Before Tax 620000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Profit Loss From Continuing Operations 619000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items Netting;
0001004315-25-000012 20230331 Profit Loss From Continuing Operations -240000000.0000 GBP 4 ifrs/2024 Scenario= Remeasurements Netting;
0001004315-25-000012 20240331 Profit Loss From Continuing Operations -852000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items Netting;
0001004315-25-000012 20240331 Profit Loss From Discontinued Operations 74000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20230331 Profit Loss From Operating Activities -350000000.0000 GBP 4 ifrs/2024 Classes Of Financial Instruments= Commodity Derivatives; Scenario= Remeasurements Netting;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 31000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= Other Segments;
0001004315-25-000012 20230331 Profit Loss From Operating Activities -22000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity Distribution;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 469000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= National Grid Ventures;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 558000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= National Grid Ventures;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 4934000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Profit Loss From Operating Activities 133000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= Other Segments;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 0.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity Transmission;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 1277000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity Transmission;
0001004315-25-000012 20230331 Property Plant And Equipment Including Rightofuse Assets 1222000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Property Plant And Equipment= Motor Vehicles And Office Equipment;
0001004315-25-000012 20240331 Property Plant And Equipment Including Rightofuse Assets 7022000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Property Plant And Equipment= Construction In Progress;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets 340000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= National Grid Renewables;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets 77766000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Property Plant And Equipment= Machinery;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets 9022000000.0000 GBP 0 ifrs/2024 Classes Of Property Plant And Equipment= Construction In Progress;
0001004315-25-000012 20230331 Purchase Of Intangible Assets Classified As Investing Activities 567000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Purchase Of Interests In Investments Accounted For Using Equity Method 332000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Purchase Of Investments Other Than Investments Accounted For Using Equity Method 122000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Reclassification Adjustments On Exchange Differences On Translation Before Tax 170000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Revenue 9611000000.0000 GBP 4 ifrs/2024 Geographical Areas= Country Of Domicile;
0001004315-25-000012 20230331 Revenue 2045000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity Distribution;
0001004315-25-000012 20230331 Revenue 4690000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity System Operator;
0001004315-25-000012 20230331 Revenue 317000000.0000 GBP 4 ifrs/2024 Segments= Other Segments;
0001004315-25-000012 20240331 Revenue 158000000.0000 GBP 4 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20240331 Revenue -35000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= U K Electricity System Operator;
0001004315-25-000012 20240331 Revenue 3948000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= New England Segment;
0001004315-25-000012 20240331 Revenue 244000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= Other Segments;
0001004315-25-000012 20250331 Revenue 0.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Revenue 11671000000.0000 GBP 4 ifrs/2024 Geographical Areas= U S;
0001004315-25-000012 20250331 Revenue 108000000.0000 GBP 4 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20250331 Revenue 18586000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments;
0001004315-25-000012 20250331 Revenue 1029000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity System Operator;
0001004315-25-000012 20250331 Revenue 1350000000.0000 GBP 4 ifrs/2024 Segments= National Grid Ventures;
0001004315-25-000012 20230331 Sale Or Issue Of Treasury Shares 16000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20240331 Scrip Dividends Related Share Issue Recognized As Distributions To Owners 5000000.0000 GBP 4 0001004315-25-000012 Components Of Equity= Issued Capital;
0001004315-25-000012 20250331 Transactions In Own Shares -7000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Cash And Cash Equivalents 1178000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 2968000000.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= The Narragansett Electric Company;
0001004315-25-000012 20240331 Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 0.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= U K Electricity System Operator;
0001004315-25-000012 20240331 Cash Flows From Used In Decrease Increase In Shortterm Deposits And Investments -1141000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Cash Flows From Used In Financing Activities Discontinued Operations 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Cash Flows From Used In Increase Decrease In Current Borrowings -511000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Cash Flows Relating To Insurance Claim From Loss Of Property Plant And Equipment Investing Activities 143000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Comprehensive Income -132000000.0000 GBP 4 ifrs/2024 Components Of Equity= Other Reserves;
0001004315-25-000012 20240331 Comprehensive Income 84000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Comprehensive Income Attributable To Owners Of Parent 1990000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Current Borrowings And Current Portion Of Noncurrent Borrowings 4662000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Current Contract Liabilities 96000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Current Liabilities 11389000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Assets 1100000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= Grain L N G;
0001004315-25-000012 20250331 Basic Earnings Loss Per Share 0.6160 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Cash Flows From Used In Operating Activities Discontinued Operations 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Cash Flows From Used In Operating Activities Discontinued Operations 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Comprehensive Income 7242000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20230331 Comprehensive Income 698000000.0000 GBP 4 ifrs/2024 Components Of Equity= Other Reserves;
0001004315-25-000012 20230331 Comprehensive Income 6544000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20230331 Comprehensive Income 4856000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Comprehensive Income 2575000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Comprehensive Income From Continuing Operations 2509000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Comprehensive Income From Discontinued Operations 66000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Current Assets 10379000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Current Tax Assets Current 11000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Current Tax Assets Current 11000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Diluted Earnings Loss Per Share 0.5710 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Diluted Earnings Loss Per Share 0.6140 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Effect Of Exchange Rate Changes On Cash And Cash Equivalents -1000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Equity 29562000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Equity -3860000000.0000 GBP 0 ifrs/2024 Components Of Equity= Other Reserves; For further details of other equity reserves, see note 28.
0001004315-25-000012 20230331 Equity 1302000000.0000 GBP 0 ifrs/2024 Components Of Equity= Share Premium;
0001004315-25-000012 20240331 Equity 32066000000.0000 GBP 0 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20250331 Equity 37803000000.0000 GBP 0 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Equity 638000000.0000 GBP 0 ifrs/2024 Components Of Equity= Issued Capital;
0001004315-25-000012 20250331 Equity 23000000.0000 GBP 0 ifrs/2024 Components Of Equity= Noncontrolling Interests;
0001004315-25-000012 20230331 Finance Costs 1598000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Finance Costs -62000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Finance Costs 1723000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Finance Costs -11000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Gains Losses On Cash Flow Hedges Before Tax 240000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Gains Losses On Cost Of Hedging Before Tax 0.0000 GBP 4 0001004315-25-000012 Types Of Hedges= Cash Flow Hedges; Types Of Risks= Currency Risk;
0001004315-25-000012 20250331 Gains Losses On Cost Of Hedging Before Tax 0.0000 GBP 4 0001004315-25-000012 Types Of Hedges= Cash Flow Hedges; Types Of Risks= Currency Risk;
0001004315-25-000012 20250331 Goodwill 100000000.0000 GBP 0 ifrs/2024 Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= National Grid Ventures U S;
0001004315-25-000012 20240331 Income Taxes Paid Refund Classified As Operating Activities 342000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Income Tax Expense Continuing Operations -152000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Income Tax Relating To Components Of Other Comprehensive Income That Will Be Reclassified To Profit Or Loss 66000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Income Tax Relating To Components Of Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss -59000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Income Tax Relating To Components Of Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss 0.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20230331 Increase Decrease In Cash And Cash Equivalents Through Reclassification To Held For Sale And Discontinued Operations 9000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20230331 Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 5000000.0000 GBP 4 0001004315-25-000012 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20240331 Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 2000000.0000 GBP 4 0001004315-25-000012 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 5000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 5000000.0000 GBP 4 0001004315-25-000012 Reserves Within Equity= Reserve Of Cash Flow Hedges;
0001004315-25-000012 20250331 Increase Decrease Through Other Movements In Non Controlling Interests Equity -3000000.0000 GBP 4 0001004315-25-000012 Components Of Equity= Noncontrolling Interests;
0001004315-25-000012 20230331 Increase Decrease Through Sharebased Payment Transactions 48000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Increase Decrease Through Sharebased Payment Transactions 37000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20240331 Increase Decrease Through Treasury Share Transactions -4000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Intangible Assets Other Than Goodwill -1737000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill -1758000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Intangible Assets Other Than Goodwill= Computer Software;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 1714000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Intangible Assets Other Than Goodwill= Licences;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 3564000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 25000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= Grain L N G;
0001004315-25-000012 20240331 Investment Accounted For Using Equity Method 158000000.0000 GBP 0 ifrs/2024 Significant Investments In Associates= Associates;
0001004315-25-000012 20250331 Issue Of Equity 6704000000.0000 GBP 4 ifrs/2024 Components Of Equity= Other Reserves;
0001004315-25-000012 20250331 Liabilities 326000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= Grain L N G;
0001004315-25-000012 20240331 Liabilities Included In Disposal Groups Classified As Held For Sale 1427000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Segments= U K Electricity System Operator;
0001004315-25-000012 20240331 Liabilities Included In Disposal Groups Classified As Held For Sale 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Associates= Gas T Top Co Limited;
0001004315-25-000012 20250331 Liabilities Included In Disposal Groups Classified As Held For Sale 434000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Liabilities Included In Disposal Groups Classified As Held For Sale 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Classes Of Financial Instruments= R A A Derivatives;
0001004315-25-000012 20230331 Miscellaneous Other Operating Expense 17549000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240930 Net Assets Liabilities 486000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Disposal Group Name= U K Electricity System Operator;
0001004315-25-000012 20250331 Net Assets Liabilities 774000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= Grain L N G;
0001004315-25-000012 20250331 Noncurrent Assets 92410000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= National Grid Renewables;
0001004315-25-000012 20250331 Noncurrent Contract Liabilities 2418000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Other Comprehensive Income 698000000.0000 GBP 4 ifrs/2024 Components Of Equity= Other Reserves;
0001004315-25-000012 20240331 Other Comprehensive Income -300000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Other Comprehensive Income That Will Be Reclassified To Profit Or Loss Net Of Tax 684000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss Net Of Tax 0.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20230331 Other Current Financial Assets 2605000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Other Current Financial Assets 5753000000.0000 GBP 0 ifrs/2024 Balance Sheet Location1= Current Assets;
0001004315-25-000012 20250331 Other Noncurrent Financial Assets 798000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Other Noncurrent Liabilities 876000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Other Reserves 971000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Exchange Differences On Translation;
0001004315-25-000012 20240331 Payments For Derivatives Contracts Classified As Financing Activities 58000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240630 Payments For Share Issue Costs 162000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Proceeds From Borrowings Classified As Financing Activities 3237000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20250331 Proceeds From Issue Of Ordinary Shares 7001000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Proceeds From Sale Or Issue Of Treasury Shares 18000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Proceeds From Sales Of Property Plant And Equipment Classified As Investing Activities 26000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Profit Loss Attributable To Noncontrolling Interests 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Profit Loss Attributable To Owners Of Parent 7797000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Profit Loss Before Tax 373000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Profit Loss Before Tax 3650000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Profit Loss Before Tax 52000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20230331 Profit Loss From Continuing Operations 2714000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Profit Loss From Continuing Operations 84000000.0000 GBP 4 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20250331 Profit Loss From Continuing Operations 50000000.0000 GBP 4 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20240331 Profit Loss From Discontinued Operations 74000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Profit Loss From Operating Activities 2028000000.0000 GBP 4 ifrs/2024 Geographical Areas= U S;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 1132000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= New England Segment;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 1069000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity Distribution;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 3436000000.0000 GBP 4 ifrs/2024 Geographical Areas= Country Of Domicile;
0001004315-25-000012 20240331 Profit Loss From Operating Activities -500000000.0000 GBP 4 ifrs/2024 Geographical Areas= U S; Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 71000000.0000 GBP 4 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 880000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity System Operator;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 1677000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity Transmission;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 127000000.0000 GBP 4 ifrs/2024 Classes Of Financial Instruments= Commodity Derivatives; Scenario= Remeasurements Netting;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 63000000.0000 GBP 4 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 380000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= National Grid Ventures;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 1610000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity Distribution;
0001004315-25-000012 20250331 Profit Loss From Operating Activities -213000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity System Operator;
0001004315-25-000012 20230331 Property Plant And Equipment Including Rightofuse Assets -17380000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation;
0001004315-25-000012 20230331 Property Plant And Equipment Including Rightofuse Assets 69765000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Property Plant And Equipment= Machinery;
0001004315-25-000012 20240331 Property Plant And Equipment Including Rightofuse Assets 57821000000.0000 GBP 0 ifrs/2024 Classes Of Property Plant And Equipment= Machinery;
0001004315-25-000012 20240930 Property Plant And Equipment Including Rightofuse Assets 121000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Disposal Group Name= U K Electricity System Operator;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets 898000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= Grain L N G;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets -16925000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Property Plant And Equipment= Machinery;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets -619000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Property Plant And Equipment= Motor Vehicles And Office Equipment;
0001004315-25-000012 20250331 Purchase Of Intangible Assets Classified As Investing Activities 526000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Purchase Of Property Plant And Equipment Classified As Investing Activities 6325000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Reclassification Adjustments On Exchange Differences On Translation Before Tax 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Reclassification Adjustments On Exchange Differences On Translation Before Tax 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Revenue 12048000000.0000 GBP 4 ifrs/2024 Geographical Areas= U S;
0001004315-25-000012 20230331 Revenue -12000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= U K Electricity Distribution;
0001004315-25-000012 20230331 Revenue -41000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= U K Electricity Transmission;
0001004315-25-000012 20230331 Revenue 4659000000.0000 GBP 4 ifrs/2024 Segments= U K Electricity System Operator;
0001004315-25-000012 20240331 Revenue 10787000000.0000 GBP 4 ifrs/2024 Geographical Areas= U S;
0001004315-25-000012 20240331 Revenue 0.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= New York Segment;
0001004315-25-000012 20240331 Revenue 1389000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= National Grid Ventures;
0001004315-25-000012 20240331 Revenue 1795000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity Distribution;
0001004315-25-000012 20240331 Revenue 1790000000.0000 GBP 4 ifrs/2024 Segments= U K Electricity Distribution;
0001004315-25-000012 20250331 Revenue 0.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= New York Segment;
0001004315-25-000012 20250331 Revenue 122000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= Other Segments;
0001004315-25-000012 20240331 Sale Or Issue Of Treasury Shares 21000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Scrip Dividends Related Share Issue Recognized As Distributions To Owners 0.0000 GBP 4 0001004315-25-000012 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20230331 Cash And Cash Equivalents 163000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Cash And Cash Equivalents 30000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= National Grid Renewables;
0001004315-25-000012 20220331 Cash And Cash Equivalents If Different From Statement Of Financial Position 182000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 0.0000 GBP 4 ifrs/2024 Significant Investments In Associates= Millennium Pipeline Company L L C;
0001004315-25-000012 20240331 Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 681000000.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= U K Gas Transmission;
0001004315-25-000012 20250331 Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 0.0000 GBP 4 ifrs/2024 Significant Investments In Associates= Millennium Pipeline Company L L C;
0001004315-25-000012 20250331 Cash Flows From Used In Financing Activities Continuing Operations 4528000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Cash Flows From Used In Investing Activities Discontinued Operations 22000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Cash Flows From Used In Operating Activities Continuing Operations 6939000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Cash Flows From Used In Operating Activities Continuing Operations 6808000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Cash Flows From Used In Operating Activities Discontinued Operations 555000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Cash Flows From Used In Operations 6432000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Cash Flows Used In Obtaining Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 19000000.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= National Grid Renewables And Emerald Energy Venture L L C;
0001004315-25-000012 20250331 Cash Receipts From Future Contracts Forward Contracts Option Contracts And Swap Contracts Classified As Investing Activities 11000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Comprehensive Income 1990000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20240331 Comprehensive Income Attributable To Noncontrolling Interests 1000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Comprehensive Income Attributable To Noncontrolling Interests 1000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Comprehensive Income Attributable To Owners Of Parent 7242000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Comprehensive Income Attributable To Owners Of Parent From Continuing Operations 2386000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Current Borrowings And Current Portion Of Noncurrent Borrowings 4859000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Current Derivative Financial Liabilities 335000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Revenue 116000000.0000 GBP 4 ifrs/2024 Segments= Other Segments;
0001004315-25-000012 20230331 Scrip Dividends Related Share Issue Recognized As Distributions To Owners -3000000.0000 GBP 4 0001004315-25-000012 Components Of Equity= Share Premium;
0001004315-25-000012 20240331 Share Of Other Comprehensive Income Of Associates And Joint Ventures Accounted For Using Equity Method That Will Be Reclassified To Profit Or Loss Net Of Tax 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Share Of Profit Loss Of Associates And Joint Ventures Accounted For Using Equity Method 171000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Share Of Profit Loss Of Associates And Joint Ventures Accounted For Using Equity Method -19000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Trade And Other Current Receivables 4092000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Adjustments For Depreciation And Amortisation Expense And Impairment Loss Reversal Of Impairment Loss Recognised In Profit Or Loss 1984000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Adjustments For Gain Loss On Disposal Of Investments In Subsidiaries Joint Ventures And Associates 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Adjustments For Provisions 840000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Adjustments For Sharebased Payments 37000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240930 Assets 1549000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Disposal Group Name= U K Electricity System Operator;
0001004315-25-000012 20250331 Basic Earnings Loss Per Share From Continuing Operations 0.6000 GBP 4 ifrs/2024
0001004315-25-000012 20220331 Cash And Cash Equivalents 204000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Cash And Cash Equivalents 76000000.0000 GBP 0 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20230331 Cash Flows From Used In Financing Activities Discontinued Operations -207000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Cash Flows From Used In Increase Decrease In Current Borrowings -511000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20240331 Cash Flows From Used In Increase Decrease In Current Borrowings 544000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20250331 Cash Flows From Used In Increase Decrease In Current Borrowings 925000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Cash Flows From Used In Increase Decrease In Current Borrowings 925000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20250331 Cash Flows From Used In Operations 6991000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Cash Flows Relating To Insurance Claim From Loss Of Property Plant And Equipment Investing Activities 0.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20230331 Cash Receipts From Future Contracts Forward Contracts Option Contracts And Swap Contracts Classified As Investing Activities 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Comprehensive Income 1000000.0000 GBP 4 ifrs/2024 Components Of Equity= Noncontrolling Interests;
0001004315-25-000012 20250331 Comprehensive Income 2574000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Comprehensive Income Attributable To Owners Of Parent 2574000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Comprehensive Income Attributable To Owners Of Parent From Discontinued Operations 4856000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Comprehensive Income Attributable To Owners Of Parent From Discontinued Operations 84000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20230331 Comprehensive Income From Continuing Operations 2387000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Comprehensive Income From Discontinued Operations 4856000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Comprehensive Income From Discontinued Operations 84000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Current Tax Liabilities Current 220000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Decrease Increase Through Tax On Sharebased Payment Transactions -2000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20230331 Dividends Paid 1607000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Dividends Paid 1607000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20250331 Dividends Paid 1529000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Dividends Paid Classified As Financing Activities 1607000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Dividends Paid Classified As Financing Activities 1529000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Dividends Received From Joint Ventures Associates And Other Investments Classified As Investing Activities 176000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20220331 Equity 26611000000.0000 GBP 0 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20230331 Equity 24000000.0000 GBP 0 ifrs/2024 Components Of Equity= Noncontrolling Interests;
0001004315-25-000012 20240331 Equity -3990000000.0000 GBP 0 ifrs/2024 Components Of Equity= Other Reserves;
0001004315-25-000012 20250331 Equity 37826000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Equity -4233000000.0000 GBP 0 ifrs/2024 Components Of Equity= Other Reserves;
0001004315-25-000012 20230331 Finance Costs -82000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Gains Losses On Cash Flow Hedges Before Tax 5000000.0000 GBP 4 ifrs/2024 Types Of Hedges= Cash Flow Hedges; Types Of Risks= Market Risk;
0001004315-25-000012 20250331 Gains Losses On Cash Flow Hedges Before Tax 0.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Gains Losses On Cash Flow Hedges Before Tax 0.0000 GBP 4 ifrs/2024 Types Of Hedges= Fair Value Hedges; Types Of Risks= Market Risk;
0001004315-25-000012 20230331 Gains Losses On Cost Of Hedging Before Tax -16000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Gains Losses On Cost Of Hedging Before Tax -1000000.0000 GBP 4 0001004315-25-000012 Types Of Hedges= Cash Flow Hedges; Types Of Risks= Market Risk;
0001004315-25-000012 20250331 Gains Losses On Investments In Debt Instruments Measured At Fair Value Through Other Comprehensive Income 1000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20230331 Income Taxes Paid Refund Classified As Operating Activities 89000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Income Tax Expense Continuing Operations 831000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Income Tax Expense Continuing Operations 17000000.0000 GBP 4 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20240331 Income Tax Relating To Components Of Other Comprehensive Income That Will Be Reclassified To Profit Or Loss 3000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20230331 Increase Decrease In Working Capital -547000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 5000000.0000 GBP 4 0001004315-25-000012 Reserves Within Equity= Reserve Of Cash Flow Hedges;
0001004315-25-000012 20230331 Increase Decrease Through Treasury Share Transactions 1000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20230331 Intangible Assets Other Than Goodwill 561000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Intangible Assets Other Than Goodwill= Construction In Progress;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 3431000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 1335000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Computer Software;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 5599000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 474000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Construction In Progress;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 519000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Licences; Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= East Midlands;
0001004315-25-000012 20240331 Interest Paid Classified As Financing Activities 1627000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Interest Received Classified As Investing Activities 65000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Interest Received Classified As Investing Activities 332000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Investment Accounted For Using Equity Method 1300000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Investment Accounted For Using Equity Method 608000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Liabilities 68433000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Liabilities Included In Disposal Groups Classified As Held For Sale 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= National Grid Renewables;
0001004315-25-000012 20250331 Liabilities Included In Disposal Groups Classified As Held For Sale 434000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale;
0001004315-25-000012 20250331 Liabilities Included In Disposal Groups Classified As Held For Sale 326000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= Grain L N G;
0001004315-25-000012 20230331 Miscellaneous Other Operating Income 989000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Miscellaneous Other Operating Income 12000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Noncurrent Assets 352000000.0000 GBP 0 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20250331 Noncurrent Assets 447000000.0000 GBP 0 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20240331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 1823000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale;
0001004315-25-000012 20240331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Classes Of Financial Instruments= R A A Derivatives;
0001004315-25-000012 20240331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= Grain L N G;
0001004315-25-000012 20250331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 2628000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale;
0001004315-25-000012 20240331 Noncurrent Derivative Financial Liabilities 909000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Other Comprehensive Income 1000000.0000 GBP 4 ifrs/2024 Components Of Equity= Noncontrolling Interests;
0001004315-25-000012 20240331 Other Comprehensive Income -132000000.0000 GBP 4 ifrs/2024 Components Of Equity= Other Reserves;
0001004315-25-000012 20240331 Other Comprehensive Income -168000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20240331 Other Comprehensive Income Before Tax Gains Losses In Respect Of Cash Flow Hedging Of Capital Expenditure -37000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20230331 Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Plans -1362000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Plans -313000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Plans 0.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Plans -106000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Other Comprehensive Income From Discontinuing Operations -227000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Other Comprehensive Income That Will Be Reclassified To Profit Or Loss Net Of Tax 10000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20230331 Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss Net Of Tax -1011000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Other Current Financial Assets 5753000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Other Noncurrent Financial Assets 880000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20220331 Other Reserves 594000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Exchange Differences On Translation;
0001004315-25-000012 20230331 Other Reserves -38000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cost Of Hedging;
0001004315-25-000012 20240331 Other Reserves -3990000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Current Derivative Financial Assets 113000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Other Reserves 19000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Capital Redemption Reserve;
0001004315-25-000012 20240331 Other Reserves -16000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cost Of Hedging; Types Of Hedges= Cash Flow Hedges; Types Of Risks= Market Risk;
0001004315-25-000012 20250331 Other Reserves 100000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Gains And Losses On Financial Assets Measured At Fair Value Through Other Comprehensive Income;
0001004315-25-000012 20250331 Payments Of Lease Liabilities Classified As Financing Activities 130000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20240331 Proceeds From Derivatives Contracts Classified As Financing Activities 86000000.0000 GBP 4 0001004315-25-000012 Liabilities Arising From Financing Activities= Financing Derivatives Hedging;
0001004315-25-000012 20230331 Proceeds From Issue Of Ordinary Shares 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Proceeds From Sale Or Issue Of Treasury Shares 20000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Profit Loss 7797000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Profit Loss 108000000.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= N G R And Grain L N G;
0001004315-25-000012 20240331 Profit Loss Attributable To Owners Of Parent 2290000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Profit Loss Before Tax 79000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Profit Loss Before Tax 3479000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Profit Loss Before Tax 171000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Profit Loss From Continuing Operations 379000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Profit Loss From Discontinued Operations 5083000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Profit Loss From Discontinued Operations 76000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 4879000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Profit Loss From Operating Activities 2851000000.0000 GBP 4 ifrs/2024 Geographical Areas= Country Of Domicile;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 708000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= New England Segment;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 1091000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity Distribution;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 238000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity System Operator;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 424000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= New England Segment;
0001004315-25-000012 20230331 Profit Loss From Operating Activities -200000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= New York Segment;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 957000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= National Grid Ventures;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 0.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 860000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= New York Segment;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 982000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= New England Segment;
0001004315-25-000012 20250331 Profit Loss From Operating Activities -143000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= Other Segments;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 246000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= New York Segment;
0001004315-25-000012 20230331 Property Plant And Equipment Including Rightofuse Assets -55000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Property Plant And Equipment= Construction In Progress;
0001004315-25-000012 20230331 Property Plant And Equipment Including Rightofuse Assets -605000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Property Plant And Equipment= Motor Vehicles And Office Equipment;
0001004315-25-000012 20230331 Property Plant And Equipment Including Rightofuse Assets 4066000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Property Plant And Equipment= Land And Buildings;
0001004315-25-000012 20240331 Property Plant And Equipment Including Rightofuse Assets 68907000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Property Plant And Equipment Including Rightofuse Assets 74551000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Property Plant And Equipment= Machinery;
0001004315-25-000012 20240331 Property Plant And Equipment Including Rightofuse Assets 1350000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Property Plant And Equipment= Motor Vehicles And Office Equipment;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets -771000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Property Plant And Equipment= Land And Buildings;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets 1374000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Property Plant And Equipment= Motor Vehicles And Office Equipment;
0001004315-25-000012 20250331 Current Derivative Financial Liabilities 381000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Purchase Of Intangible Assets Classified As Investing Activities 549000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Purchase Of Investments Other Than Investments Accounted For Using Equity Method 81000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Adjustments For Sharebased Payments 48000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Adjustments For Sharebased Payments 37000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Assets 98325000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Assets 1528000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= National Grid Renewables;
0001004315-25-000012 20230331 Cash And Cash Equivalents If Different From Statement Of Financial Position 163000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Cash Flows From Used In Investing Activities Continuing Operations -10593000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Cash Flows From Used In Investing Activities Discontinued Operations -564000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Cash Flows From Used In Investing Activities Discontinued Operations 102000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Cash Flows From Used In Operating Activities Continuing Operations 6343000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Cash Flows From Used In Operations 7281000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Comprehensive Income 1991000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Comprehensive Income 2822000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20240331 Comprehensive Income Attributable To Owners Of Parent From Continuing Operations 1906000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Current Assets 14332000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Current Liabilities 109000000.0000 GBP 0 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20240331 Decrease Increase Through Tax On Sharebased Payment Transactions -2000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20250331 Deferred Tax Liabilities 8038000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Diluted Earnings Loss Per Share From Continuing Operations 0.6830 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Effect Of Exchange Rate Changes On Cash And Cash Equivalents -23000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20220331 Equity 485000000.0000 GBP 0 ifrs/2024 Components Of Equity= Issued Capital;
0001004315-25-000012 20240331 Finance Costs 1712000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Finance Income 21000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20230331 Finance Income 166000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Finance Income -28000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Finance Income 17000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Gains Losses On Cash Flow Hedges Before Tax 0.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Gains Losses On Cash Flow Hedges Before Tax 0.0000 GBP 4 ifrs/2024 Types Of Hedges= Fair Value Hedges; Types Of Risks= Market Risk;
0001004315-25-000012 20250331 Gains Losses On Cost Of Hedging Before Tax -36000000.0000 GBP 4 0001004315-25-000012 Types Of Hedges= Cash Flow Hedges; Types Of Risks= Market Risk;
0001004315-25-000012 20230331 Revenue 21659000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Revenue -58000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= National Grid Ventures;
0001004315-25-000012 20230331 Revenue 0.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= Other Segments;
0001004315-25-000012 20230331 Revenue 6994000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= New York Segment;
0001004315-25-000012 20230331 Revenue 6994000000.0000 GBP 4 ifrs/2024 Segments= New York Segment;
0001004315-25-000012 20230331 Revenue 1946000000.0000 GBP 4 ifrs/2024 Segments= U K Electricity Transmission;
0001004315-25-000012 20240331 Revenue 19993000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments;
0001004315-25-000012 20240331 Revenue 6094000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= New York Segment;
0001004315-25-000012 20240331 Revenue 2735000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity Transmission;
0001004315-25-000012 20240331 Revenue 1332000000.0000 GBP 4 ifrs/2024 Segments= National Grid Ventures;
0001004315-25-000012 20240331 Revenue 6094000000.0000 GBP 4 ifrs/2024 Segments= New York Segment;
0001004315-25-000012 20240331 Revenue 2695000000.0000 GBP 4 ifrs/2024 Segments= U K Electricity Transmission;
0001004315-25-000012 20250331 Revenue -17000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= U K Electricity System Operator;
0001004315-25-000012 20250331 Revenue 6689000000.0000 GBP 4 ifrs/2024 Segments= New York Segment;
0001004315-25-000012 20250331 Revenue 2421000000.0000 GBP 4 ifrs/2024 Segments= U K Electricity Distribution;
0001004315-25-000012 20250331 Sale Or Issue Of Treasury Shares 18000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Sale Or Issue Of Treasury Shares 18000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20230331 Scrip Dividends Related Share Issue Recognized As Distributions To Owners 0.0000 GBP 4 0001004315-25-000012 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Scrip Dividends Related Share Issue Recognized As Distributions To Owners -10000000.0000 GBP 4 0001004315-25-000012 Components Of Equity= Share Premium;
0001004315-25-000012 20230331 Share Of Other Comprehensive Income Of Associates And Joint Ventures Accounted For Using Equity Method That Will Be Reclassified To Profit Or Loss Net Of Tax 1000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Share Premium 1292000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Goodwill 9847000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Goodwill 1541000000.0000 GBP 0 ifrs/2024 Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= New England Segment;
0001004315-25-000012 20250331 Goodwill 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= Grain L N G;
0001004315-25-000012 20250331 Income Tax Expense Continuing Operations 18000000.0000 GBP 4 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20230331 Income Tax Relating To Components Of Other Comprehensive Income That Will Be Reclassified To Profit Or Loss -11000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Income Tax Relating To Components Of Other Comprehensive Income That Will Be Reclassified To Profit Or Loss 40000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Income Tax Relating To Components Of Other Comprehensive Income That Will Be Reclassified To Profit Or Loss -3000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20230331 Income Tax Relating To Components Of Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss -341000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Increase Decrease In Cash And Cash Equivalents Through Reclassification To Held For Sale And Discontinued Operations -123000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Increase Decrease In Working Capital 147000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Increase Decrease Through Transfer To Statutory Reserve 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Increase Decrease Through Treasury Share Transactions 2000000.0000 GBP 4 ifrs/2024 Components Of Equity= Share Premium;
0001004315-25-000012 20230331 Intangible Assets Other Than Goodwill 0.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Intangible Assets Other Than Goodwill= Licences;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 392000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Intangible Assets Other Than Goodwill= Construction In Progress;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 519000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Licences; Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= East Midlands;
0001004315-25-000012 20230331 Interest Paid Classified As Financing Activities 1277000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20250331 Investment Accounted For Using Equity Method 434000000.0000 GBP 0 ifrs/2024 Joint Ventures= Joint Ventures;
0001004315-25-000012 20250331 Issue Of Equity 6839000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20240331 Liabilities Included In Disposal Groups Classified As Held For Sale 47000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Classes Of Financial Instruments= R A A Derivatives;
0001004315-25-000012 20250331 Liabilities Included In Disposal Groups Classified As Held For Sale 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Segments= U K Electricity System Operator;
0001004315-25-000012 20240331 Miscellaneous Other Operating Expense 15208000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Noncontrolling Interests 23000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Classes Of Financial Instruments= R A A Derivatives;
0001004315-25-000012 20230331 Other Comprehensive Income Before Tax Gains Losses In Respect Of Cash Flow Hedging Of Capital Expenditure 10000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Plans 0.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Other Comprehensive Income That Will Be Reclassified To Profit Or Loss Net Of Tax -10000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Other Current Financial Assets 3699000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Other Noncurrent Assets 848000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20220331 Other Reserves -85000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cash Flow Hedges;
0001004315-25-000012 20250331 Other Reserves 19000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Capital Redemption Reserve;
0001004315-25-000012 20250331 Other Shortterm Provisions 357000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Payments For Derivatives Contracts Classified As Financing Activities 106000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20230331 Payments Of Lease Liabilities Classified As Financing Activities 155000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20240331 Proceeds From Borrowings Classified As Financing Activities 5563000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20240331 Profit Loss From Continuing Operations 2217000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Profit Loss From Continuing Operations -884000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Profit Loss From Continuing Operations 48000000.0000 GBP 4 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20250331 Profit Loss From Continuing Operations 118000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items Netting;
0001004315-25-000012 20230331 Profit Loss From Operating Activities -81000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= Other Segments;
0001004315-25-000012 20230331 Profit Loss From Operating Activities -50000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= Other Segments;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 993000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity Transmission;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 4475000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Profit Loss From Operating Activities 24000000.0000 GBP 4 ifrs/2024 Classes Of Financial Instruments= Commodity Derivatives; Scenario= Remeasurements Netting;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 117000000.0000 GBP 4 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20240331 Profit Loss From Operating Activities -987000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Profit Loss From Operating Activities -498000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= New York Segment;
0001004315-25-000012 20240331 Profit Loss From Operating Activities -18000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity Distribution;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 0.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 2775000000.0000 GBP 4 ifrs/2024 Geographical Areas= Country Of Domicile; Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 26000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= New England Segment;
0001004315-25-000012 20250331 Profit Loss From Operating Activities -12000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity Distribution;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 1269000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= New York Segment;
0001004315-25-000012 20250331 Profit Loss From Operating Activities -10000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= Other Segments;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 1598000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity Distribution;
0001004315-25-000012 20230331 Property Plant And Equipment Including Rightofuse Assets -794000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Property Plant And Equipment= Land And Buildings;
0001004315-25-000012 20230331 Property Plant And Equipment Including Rightofuse Assets 81813000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount;
0001004315-25-000012 20240331 Property Plant And Equipment Including Rightofuse Assets -16730000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Property Plant And Equipment= Machinery;
0001004315-25-000012 20240331 Revenue -40000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= U K Electricity Transmission;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets 74091000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets -18366000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets 3473000000.0000 GBP 0 ifrs/2024 Classes Of Property Plant And Equipment= Land And Buildings;
0001004315-25-000012 20230331 Purchase Of Interests In Investments Accounted For Using Equity Method 443000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Repayments Of Borrowings Classified As Financing Activities 15260000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Repayments Of Borrowings Classified As Financing Activities 1701000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Repayments Of Borrowings Classified As Financing Activities 2861000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20240331 Retained Earnings 32066000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Revenue 0.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= New England Segment;
0001004315-25-000012 20230331 Revenue -31000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= U K Electricity System Operator;
0001004315-25-000012 20230331 Revenue 1341000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= National Grid Ventures;
0001004315-25-000012 20240331 Revenue 19850000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Revenue 6707000000.0000 GBP 4 ifrs/2024 Geographical Areas= Country Of Domicile;
0001004315-25-000012 20250331 Revenue -47000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= National Grid Ventures;
0001004315-25-000012 20250331 Revenue 2619000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity Transmission;
0001004315-25-000012 20230331 Sale Or Issue Of Treasury Shares 16000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Sale Or Issue Of Treasury Shares 18000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20230331 Scrip Dividends Related Share Issue Recognized As Distributions To Owners 0.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Scrip Dividends Related Share Issue Recognized As Distributions To Owners -1000000.0000 GBP 4 0001004315-25-000012 Included within the share premium account are costs associated with scrip dividends.
0001004315-25-000012 20240331 Scrip Dividends Related Share Issue Recognized As Distributions To Owners -1000000.0000 GBP 4 0001004315-25-000012 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Scrip Dividends Related Share Issue Recognized As Distributions To Owners 10000000.0000 GBP 4 0001004315-25-000012 Components Of Equity= Issued Capital;
0001004315-25-000012 20230331 Share Of Profit Loss Of Associates And Joint Ventures Accounted For Using Equity Method 190000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Share Of Profit Loss Of Associates And Joint Ventures Accounted For Using Equity Method -64000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Share Of Profit Loss Of Associates And Joint Ventures Accounted For Using Equity Method 75000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Trade And Other Current Payables 4076000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Adjustments For Gain Loss On Disposal Of Investments In Subsidiaries Joint Ventures And Associates 846000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Adjustments For Gain Loss On Disposal Of Investments In Subsidiaries Joint Ventures And Associates 188000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Adjustments For Increase Decrease In Employee Benefit Liabilities 31000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Adjustments For Increase Decrease In Employee Benefit Liabilities -90000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Assets 106742000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Cash And Cash Equivalents 46000000.0000 GBP 0 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20250331 Cash And Cash Equivalents If Different From Statement Of Financial Position 1178000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 0.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= U K Electricity System Operator;
0001004315-25-000012 20250331 Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 0.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= The Narragansett Electric Company;
0001004315-25-000012 20250331 Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 686000000.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= U K Gas Transmission;
0001004315-25-000012 20230331 Cash Flows From Used In Decrease Increase In Shortterm Deposits And Investments 586000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Cash Flows From Used In Financing Activities Continuing Operations 987000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Cash Flows Used In Obtaining Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 19000000.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= National Grid Renewables And Emerald Energy Venture L L C;
0001004315-25-000012 20250331 Cash Payments For Future Contracts Forward Contracts Option Contracts And Swap Contracts Classified As Investing Activities 6000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Comprehensive Income 1000000.0000 GBP 4 ifrs/2024 Components Of Equity= Noncontrolling Interests;
0001004315-25-000012 20250331 Comprehensive Income 66000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20230331 Comprehensive Income Attributable To Noncontrolling Interests 1000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Comprehensive Income Attributable To Owners Of Parent From Continuing Operations 2508000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Comprehensive Income Attributable To Owners Of Parent From Discontinued Operations 66000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Diluted Earnings Loss Per Share From Continuing Operations 0.5980 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Dividends Paid 1529000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20220331 Equity 23856000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20220331 Equity 23833000000.0000 GBP 0 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20220331 Equity 23000000.0000 GBP 0 ifrs/2024 Components Of Equity= Noncontrolling Interests;
0001004315-25-000012 20240331 Equity 29892000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Finance Costs 1680000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Finance Income 5000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Gains Losses On Cost Of Hedging Before Tax 0.0000 GBP 4 0001004315-25-000012 Types Of Hedges= Fair Value Hedges; Types Of Risks= Market Risk;
0001004315-25-000012 20230331 Gains Losses On Exchange Differences On Translation Net Of Net Investment Hedge Before Tax 883000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Goodwill 1506000000.0000 GBP 0 ifrs/2024 Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= New England Segment;
0001004315-25-000012 20230331 Impairment Loss Recognised In Profit Or Loss Trade Receivables 220000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Income Tax Expense Continuing Operations 316000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items Netting;
0001004315-25-000012 20240331 Income Tax Expense Continuing Operations 31000000.0000 GBP 4 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20240331 Increase Decrease In Cash And Cash Equivalents Before Effect Of Exchange Rate Changes 427000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Increase Decrease Through Transfer To Statutory Reserve -6704000000.0000 GBP 4 ifrs/2024 Components Of Equity= Other Reserves;
0001004315-25-000012 20230331 Profit Loss 7797000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20250331 Increase Decrease Through Transfer To Statutory Reserve 6704000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 518000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Licences; Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= West Midlands;
0001004315-25-000012 20240930 Intangible Assets Other Than Goodwill 485000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Disposal Group Name= U K Electricity System Operator;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= National Grid Renewables;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 0.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Intangible Assets Other Than Goodwill= Licences;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 257000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Licences; Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= South Wales;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 82000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= U K General Ledger System;
0001004315-25-000012 20240331 Interest Paid Classified As Financing Activities 297000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Financing Derivatives Hedging;
0001004315-25-000012 20240331 Inventories 828000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Investment Accounted For Using Equity Method 1420000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Investment Accounted For Using Equity Method 1262000000.0000 GBP 0 ifrs/2024 Joint Ventures= Joint Ventures;
0001004315-25-000012 20250331 Liabilities Included In Disposal Groups Classified As Held For Sale 108000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= National Grid Renewables;
0001004315-25-000012 20250331 Longterm Borrowings 42877000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Net Assets Liabilities 354000000.0000 GBP 0 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20230331 Noncurrent Assets 83584000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Noncurrent Assets 87946000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Noncurrent Assets 376000000.0000 GBP 0 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20250331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Associates= Gas T Top Co Limited;
0001004315-25-000012 20250331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 1100000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= Grain L N G;
0001004315-25-000012 20250331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 1528000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= National Grid Renewables;
0001004315-25-000012 20230331 Noncurrent Derivative Financial Assets 276000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Noncurrent Derivative Financial Liabilities 821000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Noncurrent Recognised Assets Defined Benefit Plan 2407000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Other Comprehensive Income -300000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Other Comprehensive Income -80000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20240331 Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Plans -218000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Other Comprehensive Income From Continuing Operations -327000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Other Comprehensive Income From Continuing Operations -320000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Other Comprehensive Income From Discontinuing Operations -10000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20230331 Other Comprehensive Income That Will Be Reclassified To Profit Or Loss Net Of Tax 8000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Other Noncurrent Liabilities 880000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Other Noncurrent Liabilities 51000000.0000 GBP 0 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20220331 Other Reserves -29000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cost Of Hedging;
0001004315-25-000012 20220331 Other Reserves 103000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Gains And Losses On Financial Assets Measured At Fair Value Through Other Comprehensive Income;
0001004315-25-000012 20230331 Other Reserves 19000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Capital Redemption Reserve;
0001004315-25-000012 20240331 Other Reserves -5165000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Merger Reserve;
0001004315-25-000012 20240331 Other Reserves -18000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cost Of Hedging;
0001004315-25-000012 20250331 Other Reserves 251000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cash Flow Hedges;
0001004315-25-000012 20250331 Other Reserves -24000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cost Of Hedging; Types Of Hedges= Fair Value Hedges; Types Of Risks= Market Risk;
0001004315-25-000012 20250331 Other Reserves 619000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Exchange Differences On Translation;
0001004315-25-000012 20230331 Payments For Derivatives Contracts Classified As Financing Activities 118000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20230331 Payments For Derivatives Contracts Classified As Financing Activities 118000000.0000 GBP 4 0001004315-25-000012 Liabilities Arising From Financing Activities= Financing Derivatives Hedging;
0001004315-25-000012 20230331 Payments For Share Issue Costs 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Payments For Share Issue Costs 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Proceeds From Borrowings Classified As Financing Activities 11908000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Proceeds From Borrowings Classified As Financing Activities 5563000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Profit Loss 182000000.0000 GBP 4 ifrs/2024 Disposal Group Name= U K Electricity System Operator;
0001004315-25-000012 20250331 Profit Loss 3000000.0000 GBP 4 ifrs/2024 Components Of Equity= Noncontrolling Interests;
0001004315-25-000012 20240331 Profit Loss Attributable To Noncontrolling Interests 1000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Profit Loss Attributable To Owners Of Parent 2902000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Profit Loss Before Tax 2970000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Profit Loss Before Tax 68000000.0000 GBP 4 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20250331 Profit Loss Before Tax 64000000.0000 GBP 4 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20250331 Profit Loss From Continuing Operations 2829000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Profit Loss From Continuing Operations 93000000.0000 GBP 4 ifrs/2024 Scenario= Remeasurements Netting;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 2825000000.0000 GBP 4 ifrs/2024 Geographical Areas= Country Of Domicile; Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 490000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= National Grid Ventures;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 585000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Profit Loss From Operating Activities -1000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity System Operator;
0001004315-25-000012 20230331 Profit Loss From Operating Activities -2000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity Transmission;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 237000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity System Operator;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 1539000000.0000 GBP 4 ifrs/2024 Geographical Areas= U S; Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Profit Loss From Operating Activities -2000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= New England Segment;
0001004315-25-000012 20240331 Profit Loss From Operating Activities -57000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= Other Segments;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 1674000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity Transmission;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 3032000000.0000 GBP 4 ifrs/2024 Geographical Areas= Country Of Domicile;
0001004315-25-000012 20250331 Profit Loss From Operating Activities -88000000.0000 GBP 4 ifrs/2024 Geographical Areas= U S; Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 4765000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Property Plant And Equipment Including Rightofuse Assets -758000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Property Plant And Equipment= Land And Buildings;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets 755000000.0000 GBP 0 ifrs/2024 Classes Of Property Plant And Equipment= Motor Vehicles And Office Equipment;
0001004315-25-000012 20230331 Repayments Of Borrowings Classified As Financing Activities 15260000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20250331 Repayments Of Borrowings Classified As Financing Activities 2861000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Revenue 0.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= New York Segment;
0001004315-25-000012 20230331 Revenue 1283000000.0000 GBP 4 ifrs/2024 Segments= National Grid Ventures;
0001004315-25-000012 20230331 Revenue 4427000000.0000 GBP 4 ifrs/2024 Segments= New England Segment;
0001004315-25-000012 20230331 Revenue 2033000000.0000 GBP 4 ifrs/2024 Segments= U K Electricity Distribution;
0001004315-25-000012 20240331 Revenue 109000000.0000 GBP 4 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20240331 Revenue -143000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts;
0001004315-25-000012 20240331 Revenue -57000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= National Grid Ventures;
0001004315-25-000012 20240331 Revenue -6000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= Other Segments;
0001004315-25-000012 20240331 Revenue -5000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= U K Electricity Distribution;
0001004315-25-000012 20250331 Revenue 102000000.0000 GBP 4 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20250331 Revenue 0.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= New England Segment;
0001004315-25-000012 20250331 Revenue 4306000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= New England Segment;
0001004315-25-000012 20250331 Current Tax Liabilities Current 219000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Decrease Increase Through Tax On Sharebased Payment Transactions 1000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Diluted Earnings Loss Per Share From Continuing Operations 0.5530 GBP 4 ifrs/2024 Restated to reflect the impact of the bonus element of the Rights Issue (see note 27).
0001004315-25-000012 20240331 Equity 25000000.0000 GBP 0 ifrs/2024 Components Of Equity= Noncontrolling Interests;
0001004315-25-000012 20230331 Equity 488000000.0000 GBP 0 ifrs/2024 Components Of Equity= Issued Capital;
0001004315-25-000012 20250331 Adjustments For Depreciation And Amortisation Expense And Impairment Loss Reversal Of Impairment Loss Recognised In Profit Or Loss 2479000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Adjustments For Provisions -155000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Basic Earnings Loss Per Share 1.9710 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Cash And Cash Equivalents 559000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Cash And Cash Equivalents 69000000.0000 GBP 0 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20250331 Cash And Cash Equivalents 123000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= Grain L N G;
0001004315-25-000012 20250331 Cash And Cash Equivalents 1178000000.0000 GBP 0 ifrs/2024 Balance Sheet Location1= Current Assets;
0001004315-25-000012 20240331 Cash And Cash Equivalents If Different From Statement Of Financial Position 559000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 497000000.0000 GBP 4 ifrs/2024 Significant Investments In Associates= Millennium Pipeline Company L L C;
0001004315-25-000012 20240331 Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 0.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= The Narragansett Electric Company;
0001004315-25-000012 20230331 Cash Flows From Used In Financing Activities Continuing Operations -6966000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Cash Flows From Used In Financing Activities Discontinued Operations 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Cash Flows Relating To Insurance Claim From Loss Of Property Plant And Equipment Investing Activities 79000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Cash Flows Used In Obtaining Control Of Subsidiaries Or Other Businesses Classified As Investing Activities 0.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= National Grid Renewables And Emerald Energy Venture L L C;
0001004315-25-000012 20240331 Cash Receipts From Future Contracts Forward Contracts Option Contracts And Swap Contracts Classified As Investing Activities 123000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Comprehensive Income 7243000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Comprehensive Income 1000000.0000 GBP 4 ifrs/2024 Components Of Equity= Noncontrolling Interests;
0001004315-25-000012 20250331 Comprehensive Income -248000000.0000 GBP 4 ifrs/2024 Components Of Equity= Other Reserves;
0001004315-25-000012 20240331 Comprehensive Income From Continuing Operations 1907000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Current Liabilities 39000000.0000 GBP 0 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20250331 Current Liabilities 10621000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Diluted Earnings Loss Per Share 1.9620 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Dividends Paid 1718000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Dividends Paid 1718000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Dividends Received From Joint Ventures Associates And Other Investments Classified As Investing Activities 126000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20230331 Equity 29538000000.0000 GBP 0 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20240331 Equity 1298000000.0000 GBP 0 ifrs/2024 Components Of Equity= Share Premium;
0001004315-25-000012 20230331 Finance Income 138000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Finance Income 244000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Finance Income 4000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Gains Losses On Cash Flow Hedges Before Tax 218000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Gains Losses On Cash Flow Hedges Before Tax 26000000.0000 GBP 4 ifrs/2024 Types Of Hedges= Cash Flow Hedges; Types Of Risks= Market Risk;
0001004315-25-000012 20240331 Gains Losses On Cost Of Hedging Before Tax 26000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Gains Losses On Cost Of Hedging Before Tax 0.0000 GBP 4 0001004315-25-000012 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Gains Losses On Exchange Differences On Translation Net Of Net Investment Hedge Before Tax -352000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Goodwill 9729000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Goodwill 53000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= National Grid Renewables;
0001004315-25-000012 20230331 Income Tax Expense Continuing Operations 876000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Income Tax Expense Continuing Operations -76000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items Netting;
0001004315-25-000012 20230331 Income Tax Relating To Components Of Other Comprehensive Income That Will Be Reclassified To Profit Or Loss 2000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Increase Decrease In Working Capital -40000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 5000000.0000 GBP 4 0001004315-25-000012 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20230331 Increase Decrease Through Sharebased Payment Transactions 48000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Increase Decrease Through Sharebased Payment Transactions 37000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Increase Decrease Through Treasury Share Transactions -4000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20230331 Increase Decrease Through Treasury Share Transactions 5000000.0000 GBP 4 ifrs/2024 Components Of Equity= Share Premium;
0001004315-25-000012 20250331 Increase Decrease Through Treasury Share Transactions -11000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20230331 Intangible Assets Other Than Goodwill 5341000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill -10000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Intangible Assets Other Than Goodwill= Construction In Progress;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 5199000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 3093000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Intangible Assets Other Than Goodwill= Computer Software;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 81000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= U K General Ledger System;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 271000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Gas Business Enablement System;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 518000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Licences; Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= West Midlands;
0001004315-25-000012 20230331 Interest Paid Classified As Financing Activities 1430000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Interest Paid Classified As Financing Activities 153000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Financing Derivatives Hedging;
0001004315-25-000012 20250331 Interest Paid Classified As Financing Activities 1920000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Issued Capital 493000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Issue Of Equity 6839000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240930 Liabilities 1063000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Disposal Group Name= U K Electricity System Operator;
0001004315-25-000012 20240331 Liabilities Included In Disposal Groups Classified As Held For Sale 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= Grain L N G;
0001004315-25-000012 20240331 Net Assets Liabilities 29892000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Noncurrent Assets 478000000.0000 GBP 0 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20250331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Segments= U K Electricity System Operator;
0001004315-25-000012 20240331 Noncurrent Derivative Financial Assets 324000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Noncurrent Derivative Financial Assets 369000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Noncurrent Liabilities 57044000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Noncurrent Provisions For Employee Benefits 573000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Other Comprehensive Income -1253000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20250331 Other Comprehensive Income -330000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Other Comprehensive Income -328000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20250331 Other Comprehensive Income -2000000.0000 GBP 4 ifrs/2024 Components Of Equity= Noncontrolling Interests;
0001004315-25-000012 20250331 Other Comprehensive Income -248000000.0000 GBP 4 ifrs/2024 Components Of Equity= Other Reserves;
0001004315-25-000012 20240331 Other Comprehensive Income From Discontinuing Operations 10000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20220331 Other Current Financial Assets 3145000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Other Noncurrent Liabilities 57000000.0000 GBP 0 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20250331 Other Noncurrent Liabilities 3000000.0000 GBP 0 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20240331 Other Reserves 0.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cost Of Hedging; Types Of Hedges= Cash Flow Hedges; Types Of Risks= Currency Risk;
0001004315-25-000012 20240331 Other Reserves 109000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Gains And Losses On Financial Assets Measured At Fair Value Through Other Comprehensive Income;
0001004315-25-000012 20250331 Payments For Derivatives Contracts Classified As Financing Activities 106000000.0000 GBP 4 0001004315-25-000012 Liabilities Arising From Financing Activities= Financing Derivatives Hedging;
0001004315-25-000012 20230331 Payments Of Lease Liabilities Classified As Financing Activities 155000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Payments Of Lease Liabilities Classified As Financing Activities 118000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Proceeds From Derivatives Contracts Classified As Financing Activities 190000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Proceeds From Derivatives Contracts Classified As Financing Activities 86000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Proceeds From Derivatives Contracts Classified As Financing Activities 62000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Proceeds From Derivatives Contracts Classified As Financing Activities 62000000.0000 GBP 4 0001004315-25-000012 Liabilities Arising From Financing Activities= Financing Derivatives Hedging;
0001004315-25-000012 20230331 Proceeds From Sales Of Investments Other Than Investments Accounted For Using Equity Method 116000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Proceeds From Sales Of Investments Other Than Investments Accounted For Using Equity Method 102000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Proceeds From Sales Of Investments Other Than Investments Accounted For Using Equity Method 85000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Profit Loss Before Tax 3048000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Profit Loss Before Tax 71000000.0000 GBP 4 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20240331 Profit Loss Before Tax -1036000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Profit Loss From Continuing Operations -32000000.0000 GBP 4 ifrs/2024 Scenario= Remeasurements Netting;
0001004315-25-000012 20250331 Profit Loss From Continuing Operations 211000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Profit Loss From Discontinued Operations 5083000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Profit Loss From Operating Activities 26000000.0000 GBP 4 ifrs/2024 Geographical Areas= Country Of Domicile; Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 467000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= National Grid Ventures;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 935000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items Netting;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 3923000000.0000 GBP 4 ifrs/2024 Geographical Areas= Country Of Domicile; Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 5462000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Profit Loss From Operating Activities -60000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= Other Segments;
0001004315-25-000012 20240331 Profit Loss From Operating Activities -498000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity System Operator;
0001004315-25-000012 20240331 Profit Loss From Operating Activities 641000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= New England Segment;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 257000000.0000 GBP 4 ifrs/2024 Geographical Areas= Country Of Domicile; Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 1023000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= New York Segment;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 1277000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity Transmission;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 169000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Profit Loss From Operating Activities -375000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= National Grid Ventures;
0001004315-25-000012 20250331 Profit Loss From Operating Activities 151000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity System Operator;
0001004315-25-000012 20240331 Property Plant And Equipment Including Rightofuse Assets 6955000000.0000 GBP 0 ifrs/2024 Classes Of Property Plant And Equipment= Construction In Progress;
0001004315-25-000012 20240331 Property Plant And Equipment Including Rightofuse Assets 3452000000.0000 GBP 0 ifrs/2024 Classes Of Property Plant And Equipment= Land And Buildings;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets 92457000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets 9073000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Property Plant And Equipment= Construction In Progress;
0001004315-25-000012 20250331 Property Plant And Equipment Including Rightofuse Assets 60841000000.0000 GBP 0 ifrs/2024 Classes Of Property Plant And Equipment= Machinery;
0001004315-25-000012 20230331 Reclassification Adjustments On Exchange Differences On Translation Before Tax 170000000.0000 GBP 4 ifrs/2024 Reserves Within Equity= Reserve Of Exchange Differences On Translation;
0001004315-25-000012 20240331 Repayments Of Borrowings Classified As Financing Activities 1701000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20230331 Revenue 21801000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments;
0001004315-25-000012 20230331 Revenue 4427000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= New England Segment;
0001004315-25-000012 20230331 Revenue 317000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= Other Segments;
0001004315-25-000012 20240331 Revenue 9063000000.0000 GBP 4 ifrs/2024 Geographical Areas= Country Of Domicile;
0001004315-25-000012 20240331 Revenue 0.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= New England Segment;
0001004315-25-000012 20240331 Revenue 3948000000.0000 GBP 4 ifrs/2024 Segments= New England Segment;
0001004315-25-000012 20250331 Revenue -208000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts;
0001004315-25-000012 20250331 Revenue -6000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= Other Segments;
0001004315-25-000012 20250331 Revenue -3000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Elimination Of Intersegment Amounts; Segments= U K Electricity Distribution;
0001004315-25-000012 20250331 Revenue 1397000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= National Grid Ventures;
0001004315-25-000012 20250331 Revenue 6689000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= New York Segment;
0001004315-25-000012 20250331 Revenue 2424000000.0000 GBP 4 ifrs/2024 Segment Consolidation Items= Operating Segments; Segments= U K Electricity Distribution;
0001004315-25-000012 20250331 Revenue 4306000000.0000 GBP 4 ifrs/2024 Segments= New England Segment;
0001004315-25-000012 20250331 Revenue 2484000000.0000 GBP 4 ifrs/2024 Segments= U K Electricity Transmission;
0001004315-25-000012 20240331 Sale Or Issue Of Treasury Shares 21000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Scrip Dividends Related Share Issue Recognized As Distributions To Owners 0.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Share Of Profit Loss Of Associates And Joint Ventures Accounted For Using Equity Method 101000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20240331 Transactions In Own Shares -4000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Dividends Paid Classified As Financing Activities 1718000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Dividends Received From Joint Ventures Associates And Other Investments Classified As Investing Activities 190000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20220331 Equity -4563000000.0000 GBP 0 ifrs/2024 Components Of Equity= Other Reserves;
0001004315-25-000012 20250331 Equity 40106000000.0000 GBP 0 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20250331 Equity Attributable To Owners Of Parent 37803000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Finance Costs 1807000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Finance Costs -47000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Gains Losses On Cost Of Hedging Before Tax -52000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20250331 Gains Losses On Cost Of Hedging Before Tax -14000000.0000 GBP 4 0001004315-25-000012 Types Of Hedges= Fair Value Hedges; Types Of Risks= Market Risk;
0001004315-25-000012 20240331 Goodwill 3279000000.0000 GBP 0 ifrs/2024 Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= New York C G U;
0001004315-25-000012 20240331 Goodwill 4721000000.0000 GBP 0 ifrs/2024 Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= U K Electricity Distribution;
0001004315-25-000012 20250331 Goodwill 4721000000.0000 GBP 0 ifrs/2024 Individual Assets Or Cashgenerating Units With Significant Amount Of Goodwill Or Intangible Assets With Indefinite Useful Lives= U K Electricity Distribution;
0001004315-25-000012 20230331 Income Tax Expense Continuing Operations 241000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Income Tax Expense Continuing Operations -75000000.0000 GBP 4 ifrs/2024 Scenario= Remeasurements Netting;
0001004315-25-000012 20240331 Income Tax Expense Continuing Operations 7000000.0000 GBP 4 ifrs/2024 Scenario= Remeasurements Netting;
0001004315-25-000012 20250331 Income Tax Expense Continuing Operations 16000000.0000 GBP 4 ifrs/2024 Joint Ventures= Nemo Link Limited;
0001004315-25-000012 20250331 Income Tax Expense Continuing Operations -40000000.0000 GBP 4 ifrs/2024 Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20250331 Income Tax Expense Continuing Operations 36000000.0000 GBP 4 ifrs/2024 Scenario= Remeasurements Netting;
0001004315-25-000012 20240331 Income Tax Relating To Components Of Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss 0.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20230331 Increase Decrease In Cash And Cash Equivalents Before Effect Of Exchange Rate Changes -35000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Increase Decrease In Cash And Cash Equivalents Before Effect Of Exchange Rate Changes 765000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 2000000.0000 GBP 4 0001004315-25-000012
0001004315-25-000012 20240331 Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 2000000.0000 GBP 4 0001004315-25-000012 Reserves Within Equity= Reserve Of Cash Flow Hedges;
0001004315-25-000012 20250331 Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 5000000.0000 GBP 4 0001004315-25-000012 Components Of Equity= Other Reserves;
0001004315-25-000012 20230331 Increase Decrease Through Sharebased Payment Transactions 48000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20240331 Increase Decrease Through Sharebased Payment Transactions 37000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20240331 Increase Decrease Through Sharebased Payment Transactions 37000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20250331 Increase Decrease Through Sharebased Payment Transactions 37000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20240331 Increase Decrease Through Treasury Share Transactions -6000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20250331 Increase Decrease Through Treasury Share Transactions -7000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Intangible Assets Other Than Goodwill 3066000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Intangible Assets Other Than Goodwill= Computer Software;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill -1768000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation;
0001004315-25-000012 20240331 Intangible Assets Other Than Goodwill 1714000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Licences;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill -2025000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Accumulated Depreciation And Amortisation; Classes Of Intangible Assets Other Than Goodwill= Computer Software;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 484000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Intangible Assets Other Than Goodwill= Construction In Progress;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 1714000000.0000 GBP 0 ifrs/2024 Carrying Amount Accumulated Depreciation Amortisation And Impairment And Gross Carrying Amount= Gross Carrying Amount; Classes Of Intangible Assets Other Than Goodwill= Licences;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 1376000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Computer Software;
0001004315-25-000012 20250331 Intangible Assets Other Than Goodwill 1714000000.0000 GBP 0 ifrs/2024 Classes Of Intangible Assets Other Than Goodwill= Licences;
0001004315-25-000012 20250331 Interest Paid Classified As Financing Activities 1608000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20250331 Interest Paid Classified As Financing Activities 312000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Financing Derivatives Hedging;
0001004315-25-000012 20250331 Inventories 557000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Investment Accounted For Using Equity Method 1146000000.0000 GBP 0 ifrs/2024 Joint Ventures= Joint Ventures;
0001004315-25-000012 20250331 Investment Accounted For Using Equity Method 174000000.0000 GBP 0 ifrs/2024 Significant Investments In Associates= Associates;
0001004315-25-000012 20240331 Liabilities Included In Disposal Groups Classified As Held For Sale 1474000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale;
0001004315-25-000012 20240331 Profit Loss 2290000000.0000 GBP 4 ifrs/2024 Components Of Equity= Retained Earnings;
0001004315-25-000012 20250331 Liabilities Included In Disposal Groups Classified As Held For Sale 0.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Associates= Gas T Top Co Limited;
0001004315-25-000012 20240331 Longterm Borrowings 42213000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20220531 Net Assets Liabilities 2700000000.0000 GBP 0 ifrs/2024 Significant Investments In Subsidiaries= The Narragansett Electric Company;
0001004315-25-000012 20250331 Net Assets Liabilities 1420000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Subsidiaries= National Grid Renewables;
0001004315-25-000012 20240331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 689000000.0000 GBP 0 ifrs/2024 Assets And Liabilities Classified As Held For Sale= Assets And Liabilities Classified As Held For Sale; Significant Investments In Associates= Gas T Top Co Limited;
0001004315-25-000012 20250331 Noncurrent Assets Or Disposal Groups Classified As Held For Sale 2628000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Noncurrent Liabilities 58295000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20240331 Other Comprehensive Income 10000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Other Comprehensive Income -10000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20240331 Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss Net Of Tax 0.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20250331 Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss Net Of Tax -95000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Other Longterm Provisions 2692000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Other Noncurrent Assets 959000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Other Noncurrent Financial Assets 859000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20230331 Other Reserves 1306000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Exchange Differences On Translation;
0001004315-25-000012 20230331 Other Reserves 79000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Gains And Losses On Financial Assets Measured At Fair Value Through Other Comprehensive Income;
0001004315-25-000012 20250331 Other Reserves -4233000000.0000 GBP 0 ifrs/2024
0001004315-25-000012 20250331 Other Reserves -54000000.0000 GBP 0 ifrs/2024 Reserves Within Equity= Reserve Of Cost Of Hedging; Types Of Hedges= Cash Flow Hedges; Types Of Risks= Market Risk;
0001004315-25-000012 20230331 Proceeds From Borrowings Classified As Financing Activities 11908000000.0000 GBP 4 ifrs/2024 Liabilities Arising From Financing Activities= Borrowings1;
0001004315-25-000012 20230331 Proceeds From Derivatives Contracts Classified As Financing Activities 190000000.0000 GBP 4 0001004315-25-000012 Liabilities Arising From Financing Activities= Financing Derivatives Hedging;
0001004315-25-000012 20240331 Proceeds From Issue Of Ordinary Shares 0.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Proceeds From Sales Of Property Plant And Equipment Classified As Investing Activities 52000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Profit Loss 2290000000.0000 GBP 4 ifrs/2024 Components Of Equity= Equity Attributable To Owners Of Parent;
0001004315-25-000012 20240331 Profit Loss 49000000.0000 GBP 4 ifrs/2024 Significant Investments In Subsidiaries= N G R And Grain L N G;
0001004315-25-000012 20250331 Profit Loss 2905000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20250331 Profit Loss Attributable To Noncontrolling Interests 3000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20230331 Profit Loss Before Tax 3590000000.0000 GBP 4 ifrs/2024
0001004315-25-000012 20240331 Profit Loss Before Tax 115000000.0000 GBP 4 ifrs/2024 Joint Ventures= Brit Ned Development Limited;
0001004315-25-000012 20240331 Profit Loss Before Tax 4084000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 715000000.0000 GBP 4 ifrs/2024 Continuing And Discontinued Operations= Discontinued Operations;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 1469000000.0000 GBP 4 ifrs/2024 Geographical Areas= U S; Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 559000000.0000 GBP 4 ifrs/2024 Geographical Areas= U S; Scenario= Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 4294000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting;
0001004315-25-000012 20230331 Profit Loss From Operating Activities 995000000.0000 GBP 4 ifrs/2024 Scenario= Before Exceptional Items And Remeasurements Netting; Segment Consolidation Items= Operating Segments; Segments= U K Electricity Transmission;

Description
Field Name Field Description
adsh Accession Number. The 20-character string formed from the 18-digit number assigned by the SEC to each EDGAR submission.
tag The unique identifier (name) for a tag in a specific taxonomy release.
version For a standard tag, an identifier for the taxonomy; otherwise the accession number where the tag was defined.
ddate The end date for the data value, rounded to the nearest month end.
qtrs The count of the number of quarters represented by the data value, rounded to the nearest whole number. “0” indicates it is a point-in-time value.
uom The unit of measure for the value.
segments Tags used to represent axis and member reporting.
coreg If specified, indicates a specific co-registrant, the parent company, or other entity (e.g., guarantor). NULL indicates the consolidated entity.
value The value. This is not scaled, it is as found in the Interactive Data file, but is limited to four digits to the right of the decimal point.
footnote The text of any superscripted footnotes on the value, as shown on the statement page, truncated to 512 characters, or if there is no footnote, then this field will be blank.

Tags

tag version custom abstract datatype iord crdr tlabel doc
Cash Receipts From Future Contracts Forward Contracts Option Contracts And Swap Contracts Classified As Investing Activities ifrs/2024 0 0 monetary D D Cash receipts from futures contracts, forward contracts, option contracts and swap contracts, classified as investing activities The cash inflow from futures contracts, forward contracts, option contracts and swap contracts except when the contracts are held for dealing or trading purposes or the receipts are classified as financing activities.
Gains Losses On Cash Flow Hedges Before Tax ifrs/2024 0 0 monetary D C Gains (losses) on cash flow hedges, before tax The gains (losses) recognised in other comprehensive income on cash flow hedges, before tax, before reclassification adjustments. [Refer: Cash flow hedges [member]]
Transactions In Own Shares 0001004315-25-000012 1 0 monetary D D Transactions In Own Shares Transactions In Own Shares
Income Tax Relating To Components Of Other Comprehensive Income That Will Be Reclassified To Profit Or Loss ifrs/2024 0 0 monetary D D Income tax relating to components of other comprehensive income that will be reclassified to profit or loss The amount of income tax relating to amounts recognised in other comprehensive income that will be reclassified to profit or loss. [Refer: Income tax relating to components of other comprehensive income]
Increase Decrease In Working Capital ifrs/2024 0 0 monetary D C Increase (decrease) in working capital The increase (decrease) in working capital.
Intangible Assets Other Than Goodwill ifrs/2024 0 0 monetary I D Intangible assets other than goodwill The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill]
Profit Loss Before Tax ifrs/2024 0 0 monetary D C Profit (loss) before tax The profit (loss) before tax expense or income. [Refer: Profit (loss)]
Purchase Of Property Plant And Equipment Classified As Investing Activities ifrs/2024 0 0 monetary D C Purchase of property, plant and equipment, classified as investing activities The cash outflow for the purchases of property, plant and equipment, classified as investing activities. [Refer: Property, plant and equipment]
Repayments Of Borrowings Classified As Financing Activities ifrs/2024 0 0 monetary D C Repayments of borrowings, classified as financing activities The cash outflow to settle borrowings, classified as financing activities. [Refer: Borrowings]
Cash Flows From Used In Decrease Increase In Shortterm Deposits And Investments ifrs/2024 0 0 monetary D D Cash flows from (used in) decrease (increase) in short-term deposits and investments The cash inflow (outflow) due to a decrease (increase) in short-term deposits and investments.
Cash Flows From Used In Financing Activities Continuing Operations ifrs/2024 0 0 monetary D D Cash flows from (used in) financing activities, continuing operations The cash flows from (used in) the entity's financing activities, related to continuing operations. [Refer: Continuing operations, unless line item indicates otherwise [member]; Cash flows from (used in) financing activities]
Dividends Paid ifrs/2024 0 0 monetary D D Dividends recognised as distributions to owners The amount of dividends recognised as distributions to owners.
Goodwill ifrs/2024 0 0 monetary I D Goodwill The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Total for all business combinations [member]]
Increase Decrease In Cash And Cash Equivalents Before Effect Of Exchange Rate Changes ifrs/2024 0 0 monetary D D Increase (decrease) in cash and cash equivalents before effect of exchange rate changes The increase (decrease) in cash and cash equivalents before the effect of exchange rate changes on cash and cash equivalents held in foreign currencies. [Refer: Cash and cash equivalents; Effect of exchange rate changes on cash and cash equivalents]
Longterm Borrowings ifrs/2024 0 0 monetary I C Non-current portion of non-current borrowings The non-current portion of non-current borrowings. [Refer: Borrowings]
Retained Earnings ifrs/2024 0 0 monetary I C Retained earnings A component of equity representing the entity's cumulative undistributed earnings or deficit.
Noncurrent Liabilities ifrs/2024 0 0 monetary I C Non-current liabilities The amount of liabilities that do not meet the definition of current liabilities. [Refer: Current liabilities]
Adjustments For Increase Decrease In Employee Benefit Liabilities ifrs/2024 0 0 monetary D D Adjustments for increase (decrease) in employee benefit liabilities Adjustments for increase (decrease) in employee benefit liabilities to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]
Adjustments For Provisions ifrs/2024 0 0 monetary D D Adjustments for provisions Adjustments for provisions to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Provisions; Profit (loss)]
Basic Earnings Loss Per Share From Continuing Operations ifrs/2024 0 0 perShare D Basic earnings (loss) per share from continuing operations Basic earnings (loss) per share from continuing operations. [Refer: Basic earnings (loss) per share; Continuing operations, unless line item indicates otherwise [member]]
Comprehensive Income From Continuing Operations ifrs/2024 0 0 monetary D C Comprehensive income from continuing operations The comprehensive income from continuing operations. [Refer: Continuing operations, unless line item indicates otherwise [member]; Comprehensive income]
Current Derivative Financial Liabilities ifrs/2024 0 0 monetary I C Current derivative financial liabilities The amount of current derivative financial liabilities. [Refer: Derivative financial liabilities]
Increase Decrease Through Treasury Share Transactions ifrs/2024 0 0 monetary D C Increase (decrease) through treasury share transactions, equity The increase (decrease) in equity resulting from treasury share transactions. [Refer: Equity; Treasury shares]
Inventories ifrs/2024 0 0 monetary I D Current inventories The amount of current inventories. [Refer: Inventories]
Net Assets Liabilities ifrs/2024 0 0 monetary I D Assets (liabilities) The amount of assets less the amount of liabilities.
Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss Net Of Tax ifrs/2024 0 0 monetary D C Other comprehensive income that will not be reclassified to profit or loss, net of tax The amount of other comprehensive income that will not be reclassified to profit or loss, net of tax. [Refer: Other comprehensive income]
Other Noncurrent Financial Assets ifrs/2024 0 0 monetary I D Other non-current financial assets The amount of non-current financial assets that the entity does not separately disclose in the same statement or note. [Refer: Other financial assets]
Profit Loss From Operating Activities ifrs/2024 0 0 monetary D C Profit (loss) from operating activities The profit (loss) from operating activities of the entity. [Refer: Profit (loss)]
Property Plant And Equipment Including Rightofuse Assets ifrs/2024 0 0 monetary I D Property, plant and equipment including right-of-use assets The amount of property, plant and equipment including right-of-use assets whose underlying assets would be presented as property, plant and equipment if they were owned. [Refer: Property, plant and equipment; Right-of-use assets]
Purchase Of Interests In Investments Accounted For Using Equity Method ifrs/2024 0 0 monetary D C Purchase of interests in investments accounted for using equity method The cash outflow for the purchase of interests in investments accounted for using the equity method. [Refer: Investments accounted for using equity method]
Share Of Other Comprehensive Income Of Associates And Joint Ventures Accounted For Using Equity Method That Will Be Reclassified To Profit Or Loss Net Of Tax ifrs/2024 0 0 monetary D C Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, net of tax Share of the other comprehensive income of associates and joint ventures accounted for using the equity method that will be reclassified to profit or loss, net of tax.
Trade And Other Current Payables ifrs/2024 0 0 monetary I C Trade and other current payables The amount of current trade payables and current other payables. [Refer: Current trade payables; Other current payables]
Cash Flows Relating To Insurance Claim From Loss Of Property Plant And Equipment Investing Activities 0001004315-25-000012 1 0 monetary D D Cash Flows Relating To Insurance Claim From Loss Of Property Plant And Equipment Investing Activities Cash Flows Relating To Insurance Claim From Loss Of Property Plant And Equipment Investing Activities
Dividends Received From Joint Ventures Associates And Other Investments Classified As Investing Activities 0001004315-25-000012 1 0 monetary D D Dividends Received From Joint Ventures, Associates And Other Investments, Classified As Investing Activities Dividends Received From Joint Ventures, Associates And Other Investments, Classified As Investing Activities
Cash And Cash Equivalents ifrs/2024 0 0 monetary I D Cash and cash equivalents The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]
Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities ifrs/2024 0 0 monetary D D Cash flows from losing control of subsidiaries or other businesses, classified as investing activities The aggregate cash flows arising from losing control of subsidiaries or other businesses, classified as investing activities. [Refer: Total for all subsidiaries [member]]
Cash Flows From Used In Financing Activities Discontinued Operations ifrs/2024 0 0 monetary D D Cash flows from (used in) financing activities, discontinued operations The cash flows from (used in) the entity's financing activities, related to discontinued operations. [Refer: Discontinued operations [member]; Cash flows from (used in) financing activities]
Cash Flows From Used In Operating Activities Discontinued Operations ifrs/2024 0 0 monetary D Cash flows from (used in) operating activities, discontinued operations The cash flows from (used in) the entity's operating activities, related to discontinued operations. [Refer: Discontinued operations [member]; Cash flows from (used in) operating activities]
Comprehensive Income ifrs/2024 0 0 monetary D C Comprehensive income The amount of change in equity resulting from transactions and other events, other than those changes resulting from transactions with owners in their capacity as owners.
Current Liabilities ifrs/2024 0 0 monetary I C Current liabilities The amount of liabilities that: (a) the entity expects to settle in its normal operating cycle; (b) the entity holds primarily for the purpose of trading; (c) are due to be settled within twelve months after the reporting period; or (d) the entity does not have the right at the end of the reporting period to defer settlement for at least twelve months after the reporting period.
Effect Of Exchange Rate Changes On Cash And Cash Equivalents ifrs/2024 0 0 monetary D D Effect of exchange rate changes on cash and cash equivalents The effect of exchange rate changes on cash and cash equivalents held or due in a foreign currency. [Refer: Cash and cash equivalents]
Income Tax Expense Continuing Operations ifrs/2024 0 0 monetary D D Tax expense (income) The aggregate amount included in the determination of profit (loss) for the period in respect of current tax and deferred tax. [Refer: Current tax expense (income); Deferred tax expense (income)]
Investment Accounted For Using Equity Method ifrs/2024 0 0 monetary I D Investments accounted for using equity method The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]]
Liabilities Included In Disposal Groups Classified As Held For Sale ifrs/2024 0 0 monetary I C Liabilities included in disposal groups classified as held for sale The amount of liabilities included in disposal groups classified as held for sale. [Refer: Liabilities; Disposal groups classified as held for sale [member]]
Miscellaneous Other Operating Expense ifrs/2024 0 0 monetary D D Miscellaneous other operating expense The amount of miscellaneous other operating expenses. [Refer: Other operating income (expense)]
Noncurrent Recognised Assets Defined Benefit Plan ifrs/2024 0 0 monetary I D Non-current net defined benefit asset The amount of non-current net defined benefit asset. [Refer: Net defined benefit asset]
Other Current Financial Assets ifrs/2024 0 0 monetary I D Other current financial assets The amount of current financial assets that the entity does not separately disclose in the same statement or note. [Refer: Other financial assets; Current financial assets]
Profit Loss Attributable To Noncontrolling Interests ifrs/2024 0 0 monetary D C Profit (loss), attributable to non-controlling interests The profit (loss) from continuing and discontinued operations attributable to non-controlling interests. [Refer: Profit (loss); Non-controlling interests]
Purchase Of Intangible Assets Classified As Investing Activities ifrs/2024 0 0 monetary D C Purchase of intangible assets, classified as investing activities The cash outflow for the purchases of intangible assets, classified as investing activities. [Refer: Intangible assets other than goodwill]
Sale Or Issue Of Treasury Shares ifrs/2024 0 0 monetary D C Sale or issue of treasury shares The increase in equity resulting from the sale or issue of treasury shares. [Refer: Treasury shares]
Share Of Profit Loss Of Associates And Joint Ventures Accounted For Using Equity Method ifrs/2024 0 0 monetary D C Share of profit (loss) of associates and joint ventures accounted for using equity method The entity's share of the profit (loss) of associates and joint ventures accounted for using the equity method. [Refer: Total for all associates [member]; Investments accounted for using equity method; Total for all joint ventures [member]; Profit (loss)]
Share Premium ifrs/2024 0 0 monetary I C Share premium The amount received or receivable from the issuance of the entity's shares in excess of nominal value.
Assets ifrs/2024 0 0 monetary I D Assets The amount of a present economic resource controlled by the entity as a result of past events. Economic resource is a right that has the potential to produce economic benefits.
Comprehensive Income Attributable To Owners Of Parent ifrs/2024 0 0 monetary D C Comprehensive income, attributable to owners of parent The amount of comprehensive income attributable to owners of the parent. [Refer: Comprehensive income]
Current Derivative Financial Assets ifrs/2024 0 0 monetary I D Current derivative financial assets The amount of current derivative financial assets. [Refer: Derivative financial assets]
Diluted Earnings Loss Per Share ifrs/2024 0 0 perShare D Diluted earnings (loss) per share The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator), divided by the weighted average number of ordinary shares outstanding during the period (the denominator), both adjusted for the effects of all dilutive potential ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]
Other Comprehensive Income That Will Be Reclassified To Profit Or Loss Net Of Tax ifrs/2024 0 0 monetary D C Other comprehensive income that will be reclassified to profit or loss, net of tax The amount of other comprehensive income that will be reclassified to profit or loss, net of tax. [Refer: Other comprehensive income]
Other Noncurrent Liabilities ifrs/2024 0 0 monetary I C Other non-current liabilities The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities]
Payments Of Lease Liabilities Classified As Financing Activities ifrs/2024 0 0 monetary D C Payments of lease liabilities, classified as financing activities The cash outflow for payment of lease liabilities, classified as financing activities. [Refer: Lease liabilities]
Proceeds From Sales Of Property Plant And Equipment Classified As Investing Activities ifrs/2024 0 0 monetary D D Proceeds from sales of property, plant and equipment, classified as investing activities The cash inflow from sales of property, plant and equipment, classified as investing activities. [Refer: Property, plant and equipment]
Profit Loss Attributable To Owners Of Parent ifrs/2024 0 0 monetary D C Profit (loss), attributable to owners of parent The profit (loss) from continuing and discontinued operations attributable to owners of the parent. [Refer: Profit (loss)]
Purchase Of Investments Other Than Investments Accounted For Using Equity Method ifrs/2024 0 0 monetary D C Purchase of investments other than investments accounted for using equity method The cash outflow for the purchase of investments other than investments accounted for using equity method. [Refer: Investments accounted for using equity method; Investments other than investments accounted for using equity method]
Adjustments For Gain Loss On Disposal Of Investments In Subsidiaries Joint Ventures And Associates ifrs/2024 0 0 monetary D C Adjustments for gain (loss) on disposal of investments in subsidiaries, joint ventures and associates Adjustments for gain (loss) on disposals investments in subsidiaries, joint ventures and associates to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Total for all associates [member]; Total for all joint ventures [member]; Total for all subsidiaries [member]; Investments in subsidiaries, joint ventures and associates reported in separate financial statements; Profit (loss)]
Other Comprehensive Income From Discontinuing Operations 0001004315-25-000012 1 0 monetary D C Other Comprehensive Income, From Discontinuing Operations Other Comprehensive Income, From Discontinuing Operations
Adjustments For Depreciation And Amortisation Expense And Impairment Loss Reversal Of Impairment Loss Recognised In Profit Or Loss ifrs/2024 0 0 monetary D D Adjustments for depreciation and amortisation expense and impairment loss (reversal of impairment loss) recognised in profit or loss Adjustments for depreciation and amortisation expense and impairment loss (reversal of impairment loss) to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Impairment loss; Depreciation and amortisation expense; Impairment loss (reversal of impairment loss) recognised in profit or loss; Profit (loss)]
Cash Flows From Used In Increase Decrease In Current Borrowings ifrs/2024 0 0 monetary D D Cash flows from (used in) increase (decrease) in current borrowings The cash inflow (outflow) due to an increase (decrease) in current borrowings. [Refer: Current borrowings]
Cash Flows From Used In Investing Activities Continuing Operations ifrs/2024 0 0 monetary D D Cash flows from (used in) investing activities, continuing operations The cash flows from (used in) the entity's investing activities, related to continuing operations. [Refer: Continuing operations, unless line item indicates otherwise [member]; Cash flows from (used in) investing activities]
Cash Flows Used In Obtaining Control Of Subsidiaries Or Other Businesses Classified As Investing Activities ifrs/2024 0 0 monetary D C Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities The aggregate cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities. [Refer: Total for all subsidiaries [member]]
Cash Payments For Future Contracts Forward Contracts Option Contracts And Swap Contracts Classified As Investing Activities ifrs/2024 0 0 monetary D C Cash payments for futures contracts, forward contracts, option contracts and swap contracts, classified as investing activities The cash outflow for futures contracts, forward contracts, option contracts and swap contracts except when the contracts are held for dealing or trading purposes or the payments are classified as financing activities.
Comprehensive Income From Discontinued Operations ifrs/2024 0 0 monetary D C Comprehensive income from discontinued operations The comprehensive income from discontinued operations. [Refer: Discontinued operations [member]; Comprehensive income]
Equity Attributable To Owners Of Parent ifrs/2024 0 0 monetary I C Equity attributable to owners of parent The amount of equity attributable to the owners of the parent. This specifically excludes non-controlling interest.
Finance Income ifrs/2024 0 0 monetary D C Finance income The amount of income associated with interest and other financing activities of the entity.
Interest Paid Classified As Financing Activities ifrs/2024 0 0 monetary D C Interest paid, classified as financing activities The cash outflow for interest paid, classified as financing activities.
Noncurrent Derivative Financial Assets ifrs/2024 0 0 monetary I D Non-current derivative financial assets The amount of non-current derivative financial assets. [Refer: Derivative financial assets]
Noncurrent Provisions For Employee Benefits ifrs/2024 0 0 monetary I C Non-current provisions for employee benefits The amount of non-current provisions for employee benefits. [Refer: Provisions for employee benefits]
Proceeds From Sale Or Issue Of Treasury Shares ifrs/2024 0 0 monetary D D Proceeds from sale or issue of treasury shares The cash inflow from the sale or issuing of treasury shares. [Refer: Sale or issue of treasury shares; Treasury shares]
Gains Losses On Exchange Differences On Translation Net Of Net Investment Hedge Before Tax 0001004315-25-000012 1 0 monetary D C Gains (Losses) On Exchange Differences On Translation, Net Of Net Investment Hedge, Before Tax Gains (Losses) On Exchange Differences On Translation, Net Of Net Investment Hedge, Before Tax
Increase Decrease In Cash And Cash Equivalents Through Reclassification To Held For Sale And Discontinued Operations 0001004315-25-000012 1 0 monetary D D Increase (Decrease) In Cash And Cash Equivalents Through Reclassification To Held For Sale And Discontinued Operations Increase (Decrease) In Cash And Cash Equivalents Through Reclassification To Held For Sale And Discontinued Operations
Other Comprehensive Income From Continuing Operations 0001004315-25-000012 1 0 monetary D C Other Comprehensive Income, From Continuing Operations Other Comprehensive Income, From Continuing Operations
Dividends Paid Classified As Financing Activities ifrs/2024 0 0 monetary D C Dividends paid, classified as financing activities The cash outflow for dividends paid by the entity, classified as financing activities.
Income Tax Relating To Components Of Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss ifrs/2024 0 0 monetary D D Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss The amount of income tax relating to amounts recognised in other comprehensive income that will not be reclassified to profit or loss. [Refer: Income tax relating to components of other comprehensive income]
Impairment Loss Recognised In Profit Or Loss Trade Receivables ifrs/2024 0 0 monetary D D Impairment loss recognised in profit or loss, trade receivables The amount of impairment loss recognised in profit or loss for trade receivables. [Refer: Impairment loss recognised in profit or loss; Trade receivables]
Liabilities ifrs/2024 0 0 monetary I C Liabilities The amount of a present obligation of the entity to transfer an economic resource as a result of past events. Economic resource is a right that has the potential to produce economic benefits.
Noncurrent Assets ifrs/2024 0 0 monetary I D Non-current assets The amount of assets that do not meet the definition of current assets. [Refer: Current assets]
Other Longterm Provisions ifrs/2024 0 0 monetary I C Other non-current provisions The amount of non-current provisions other than provisions for employee benefits. [Refer: Non-current provisions]
Proceeds From Sales Of Investments Other Than Investments Accounted For Using Equity Method ifrs/2024 0 0 monetary D D Proceeds from sales of investments other than investments accounted for using equity method The cash inflow from sales of investments other than investments accounted for using the equity method. [Refer: Investments accounted for using equity method; Investments other than investments accounted for using equity method]
Profit Loss ifrs/2024 0 0 monetary D C Profit (loss) The total of income less expenses from continuing and discontinued operations, excluding the components of other comprehensive income. [Refer: Other comprehensive income]
Profit Loss From Discontinued Operations ifrs/2024 0 0 monetary D C Profit (loss) from discontinued operations The profit (loss) from discontinued operations. [Refer: Discontinued operations [member]; Profit (loss)]
Cash And Cash Equivalents If Different From Statement Of Financial Position ifrs/2024 0 0 monetary I D Cash and cash equivalents if different from statement of financial position The amount of cash and cash equivalents in the statement of cash flows when different from the amount of cash and cash equivalents in the statement of financial position. [Refer: Cash and cash equivalents]
Increase Decrease Through Other Movements In Non Controlling Interests Equity 0001004315-25-000012 1 0 monetary D C Increase (Decrease) Through Other Movements In Non-Controlling Interests, Equity Increase (Decrease) Through Other Movements In Non-Controlling Interests, Equity
Other Comprehensive Income Before Tax Gains Losses In Respect Of Cash Flow Hedging Of Capital Expenditure 0001004315-25-000012 1 0 monetary D C Other Comprehensive Income, Before Tax, Gains (Losses) In Respect Of Cash Flow Hedging Of Capital Expenditure Other Comprehensive Income, Before Tax, Gains (Losses) In Respect Of Cash Flow Hedging Of Capital Expenditure
Equity ifrs/2024 0 0 monetary I C Equity The amount of residual interest in the assets of the entity after deducting all its liabilities.
Increase Decrease Through Transfer To Statutory Reserve ifrs/2024 0 0 monetary D C Increase (decrease) through transfer to statutory reserve, equity The increase (decrease) in equity resulting from transfers to a statutory reserve. [Refer: Statutory reserve]
Noncurrent Contract Liabilities ifrs/2024 0 0 monetary I C Non-current contract liabilities The amount of non-current contract liabilities. [Refer: Contract liabilities]
Payments For Derivatives Contracts Classified As Financing Activities 0001004315-25-000012 1 0 monetary D C Payments For Derivatives Contracts, Classified As Financing Activities Payments For Derivatives Contracts, Classified As Financing Activities
Comprehensive Income Attributable To Owners Of Parent From Continuing Operations 0001004315-25-000012 1 0 monetary D C Comprehensive Income, Attributable To Owners Of Parent, From Continuing Operations Comprehensive Income, Attributable To Owners Of Parent, From Continuing Operations
Cash Flows From Used In Operating Activities Continuing Operations ifrs/2024 0 0 monetary D Cash flows from (used in) operating activities, continuing operations The cash flows from (used in) the entity's operating activities, related to continuing operations. [Refer: Continuing operations, unless line item indicates otherwise [member]; Cash flows from (used in) operating activities]
Cash Flows From Used In Operations ifrs/2024 0 0 monetary D Cash flows from (used in) operations The cash from (used in) the entity's operations.
Comprehensive Income Attributable To Noncontrolling Interests ifrs/2024 0 0 monetary D C Comprehensive income, attributable to non-controlling interests The amount of comprehensive income attributable to non-controlling interests. [Refer: Comprehensive income; Non-controlling interests]
Current Assets ifrs/2024 0 0 monetary I D Current assets The amount of assets that the entity (a) expects to realise or intends to sell or consume in its normal operating cycle; (b) holds primarily for the purpose of trading; (c) expects to realise within twelve months after the reporting period; or (d) classifies as cash or cash equivalents (as defined in IAS 7) unless the asset is restricted from being exchanged or used to settle a liability for at least twelve months after the reporting period. [Refer: Assets]
Deferred Tax Liabilities ifrs/2024 0 0 monetary I C Deferred tax liabilities The amounts of income taxes payable in future periods in respect of taxable temporary differences. [Refer: Temporary differences [member]]
Finance Costs ifrs/2024 0 0 monetary D D Finance costs The amount of costs associated with financing activities of the entity.
Issue Of Equity ifrs/2024 0 0 monetary D C Issue of equity The increase in equity through the issue of equity instruments.
Miscellaneous Other Operating Income ifrs/2024 0 0 monetary D C Miscellaneous other operating income The amount of miscellaneous other operating income. [Refer: Other operating income (expense)]
Noncontrolling Interests ifrs/2024 0 0 monetary I C Non-controlling interests The amount of equity in a subsidiary not attributable, directly or indirectly, to a parent. [Refer: Total for all subsidiaries [member]]
Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Plans ifrs/2024 0 0 monetary D C Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans The amount of other comprehensive income, before tax, related to gains (losses) on remeasurements of defined benefit plans, which comprise actuarial gains and losses; the return on plan assets, excluding amounts included in net interest on the net defined benefit liability (asset); and any change in the effect of the asset ceiling, excluding amounts included in net interest on the net defined benefit liability (asset). [Refer: Other comprehensive income; Defined benefit plans [domain]; Plan assets [member]; Net defined benefit liability (asset)] [Contrast: Decrease (increase) in net defined benefit liability (asset) resulting from gain (loss) on remeasurement in other comprehensive income]
Other Reserves ifrs/2024 0 0 monetary I C Other reserves A component of equity representing reserves within equity, not including retained earnings. [Refer: Retained earnings]
Payments For Share Issue Costs ifrs/2024 0 0 monetary D C Payments for share issue costs The cash outflow for share issue costs.
Proceeds From Borrowings Classified As Financing Activities ifrs/2024 0 0 monetary D D Proceeds from borrowings, classified as financing activities The cash inflow from borrowings obtained. [Refer: Borrowings]
Profit Loss From Continuing Operations ifrs/2024 0 0 monetary D C Profit (loss) from continuing operations The profit (loss) from continuing operations. [Refer: Continuing operations, unless line item indicates otherwise [member]; Profit (loss)]
Revenue ifrs/2024 0 0 monetary D C Revenue The income arising in the course of an entity's ordinary activities. Income is increases in assets, or decreases in liabilities, that result in increases in equity, other than those relating to contributions from holders of equity claims.
Comprehensive Income Attributable To Owners Of Parent From Discontinued Operations 0001004315-25-000012 1 0 monetary D C Comprehensive Income, Attributable To Owners Of Parent, From Discontinued Operations Comprehensive Income, Attributable To Owners Of Parent, From Discontinued Operations
Gains Losses On Cost Of Hedging Before Tax 0001004315-25-000012 1 0 monetary D C Gains (Losses) On Cost Of Hedging, Before Tax Gains (Losses) On Cost Of Hedging, Before Tax
Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 0001004315-25-000012 1 0 monetary D C Increase (Decrease) Through Cash Flow Hedges Transferred To The Statement Of Financial Position, After Tax, Equity Increase (Decrease) Through Cash Flow Hedges Transferred To The Statement Of Financial Position, After Tax, Equity
Basic Earnings Loss Per Share ifrs/2024 0 0 perShare D Basic earnings (loss) per share The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator).
Cash Flows From Used In Investing Activities Discontinued Operations ifrs/2024 0 0 monetary D D Cash flows from (used in) investing activities, discontinued operations The cash flows from (used in) the entity's investing activities, related to discontinued operations. [Refer: Discontinued operations [member]; Cash flows from (used in) investing activities]
Current Tax Assets Current ifrs/2024 0 0 monetary I D Current tax assets, current The current amount of current tax assets. [Refer: Current tax assets]
Current Tax Liabilities Current ifrs/2024 0 0 monetary I C Current tax liabilities, current The current amount of current tax liabilities. [Refer: Current tax liabilities]
Noncurrent Assets Or Disposal Groups Classified As Held For Sale ifrs/2024 0 0 monetary I D Non-current assets or disposal groups classified as held for sale The amount of non-current assets or disposal groups classified as held for sale. [Refer: Disposal groups classified as held for sale [member]]
Noncurrent Derivative Financial Liabilities ifrs/2024 0 0 monetary I C Non-current derivative financial liabilities The amount of non-current derivative financial liabilities. [Refer: Derivative financial liabilities]
Other Noncurrent Assets ifrs/2024 0 0 monetary I D Other non-current assets The amount of non-current assets that the entity does not separately disclose in the same statement or note. [Refer: Non-current assets]
Proceeds From Issue Of Ordinary Shares ifrs/2024 0 0 monetary D D Proceeds from issue of ordinary shares The cash inflow from the issuing of ordinary shares. [Refer: Ordinary shares [member]]
Reclassification Adjustments On Exchange Differences On Translation Before Tax ifrs/2024 0 0 monetary D D Reclassification adjustments on exchange differences on translation of foreign operations, before tax The amount of reclassification adjustments related to exchange differences when the financial statements of foreign operations are translated, before tax. Reclassification adjustments are amounts reclassified to profit (loss) in the current period that were recognised in other comprehensive income in the current or previous periods. [Refer: Other comprehensive income]
Gains Losses On Investments In Debt Instruments Measured At Fair Value Through Other Comprehensive Income 0001004315-25-000012 1 0 monetary D C Gains (Losses) On Investments In Debt Instruments Measured At Fair Value Through Other Comprehensive Income Net gains/(losses) on investments in debt instruments measured at fair value through OCI
Trade And Other Current Receivables ifrs/2024 0 0 monetary I D Trade and other current receivables The amount of current trade receivables and current other receivables. [Refer: Current trade receivables; Other current receivables]
Proceeds From Derivatives Contracts Classified As Financing Activities 0001004315-25-000012 1 0 monetary D D Proceeds From Derivatives Contracts, Classified As Financing Activities Proceeds From Derivatives Contracts, Classified As Financing Activities
Scrip Dividends Related Share Issue Recognized As Distributions To Owners 0001004315-25-000012 1 0 monetary D C Scrip Dividends-Related Share Issue Recognized As Distributions To Owners Scrip Dividends-Related Share Issue Recognized As Distributions To Owners
Diluted Earnings Loss Per Share From Continuing Operations ifrs/2024 0 0 perShare D Diluted earnings (loss) per share from continuing operations Diluted earnings (loss) per share from continuing operations. [Refer: Continuing operations, unless line item indicates otherwise [member]; Diluted earnings (loss) per share]
Adjustments For Fair Value Gains Losses ifrs/2024 0 0 monetary D D Adjustments for fair value losses (gains) Adjustments for fair value losses (gains) to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]
Adjustments For Sharebased Payments ifrs/2024 0 0 monetary D D Adjustments for share-based payments Adjustments for share-based payments to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]
Current Borrowings And Current Portion Of Noncurrent Borrowings ifrs/2024 0 0 monetary I C Current borrowings and current portion of non-current borrowings The amount of current borrowings and current portion of non-current borrowings. [Refer: Borrowings]
Current Contract Liabilities ifrs/2024 0 0 monetary I C Current contract liabilities The amount of current contract liabilities. [Refer: Contract liabilities]
Decrease Increase Through Tax On Sharebased Payment Transactions ifrs/2024 0 0 monetary D D Decrease (increase) through tax on share-based payment transactions, equity The decrease (increase) in equity resulting from tax on transactions in which the entity: (a) receives goods or services from the supplier of those goods or services (including an employee) in a share-based payment arrangement; or (b) incurs an obligation to settle the transaction with the supplier in a share-based payment arrangement when another group entity receives those goods or services. [Refer: Types of share-based payment arrangements [domain]]
Income Taxes Paid Refund Classified As Operating Activities ifrs/2024 0 0 monetary D C Income taxes paid (refund), classified as operating activities The cash flows from income taxes paid or refunded, classified as operating activities. [Refer: Income taxes paid (refund)]
Increase Decrease Through Sharebased Payment Transactions ifrs/2024 0 0 monetary D C Increase (decrease) through share-based payment transactions, equity The increase (decrease) in equity resulting from share-based payment transactions. [Refer: Equity]
Interest Received Classified As Investing Activities ifrs/2024 0 0 monetary D D Interest received, classified as investing activities The cash inflow from interest received, classified as investing activities.
Issued Capital ifrs/2024 0 0 monetary I C Issued capital The nominal value of capital issued.
Other Comprehensive Income ifrs/2024 0 0 monetary D C Other comprehensive income The amount of income and expense (including reclassification adjustments) that is not recognised in profit or loss as required or permitted by IFRSs. [Refer: IFRSs [member]]
Other Shortterm Provisions ifrs/2024 0 0 monetary I C Other current provisions The amount of current provisions other than provisions for employee benefits. [Refer: Provisions]

Description
Field Name Field Description
tag The unique identifier (name) for a tag in a specific taxonomy release.
version For a standard tag, an identifier for the taxonomy; otherwise the accession number where the tag was defined.
custom 1 if tag is custom (version=adsh), 0 if it is standard. Note: This flag is technically redundant with the version and adsh columns.
abstract 1 if the tag is not used to represent a numeric fact.
datatype If abstract=1, then NULL, otherwise the data type (e.g., monetary) for the tag.
iord If abstract=1, then NULL; otherwise, “I” if the value is a point-in time, or “D” if the value is a duration.
crdr If datatype = monetary, then the tag’s natural accounting balance (debit or credit); if not defined, then NULL.
tlabel If a standard tag, then the label text provided by the taxonomy, otherwise the text provided by the filer. A tag which had neither would have a NULL value here.
doc The detailed definition for the tag. If a standard tag, then the text provided by the taxonomy, otherwise the text assigned by the filer. Some tags have neither, and this field is NULL.

Presentation of Statements

adsh report line stmt inpth rfile tag version plabel negating
0001004315-25-000012 3 1 IS 0 H Revenue ifrs/2024 Revenue 0
0001004315-25-000012 3 2 IS 0 H Impairment Loss Recognised In Profit Or Loss Trade Receivables ifrs/2024 Provision for bad and doubtful debts 1
0001004315-25-000012 3 3 IS 0 H Miscellaneous Other Operating Expense ifrs/2024 Other operating costs 1
0001004315-25-000012 3 4 IS 0 H Miscellaneous Other Operating Income ifrs/2024 Other operating income 0
0001004315-25-000012 3 5 IS 0 H Profit Loss From Operating Activities ifrs/2024 Operating profit 0
0001004315-25-000012 3 6 IS 0 H Finance Income ifrs/2024 Finance income 0
0001004315-25-000012 3 7 IS 0 H Finance Costs ifrs/2024 Finance costs 1
0001004315-25-000012 3 8 IS 0 H Share Of Profit Loss Of Associates And Joint Ventures Accounted For Using Equity Method ifrs/2024 Share of post-tax results of joint ventures and associates 0
0001004315-25-000012 3 9 IS 0 H Profit Loss Before Tax ifrs/2024 Profit before tax 0
0001004315-25-000012 3 10 IS 0 H Income Tax Expense Continuing Operations ifrs/2024 Tax 1
0001004315-25-000012 3 11 IS 0 H Profit Loss From Continuing Operations ifrs/2024 Profit after tax from continuing operations 0
0001004315-25-000012 3 12 IS 0 H Profit Loss From Discontinued Operations ifrs/2024 Profit after tax from discontinued operations 0
0001004315-25-000012 3 13 IS 0 H Profit Loss ifrs/2024 Total profit for the year (continuing and discontinued) 0
0001004315-25-000012 3 15 IS 0 H Profit Loss Attributable To Owners Of Parent ifrs/2024 Equity shareholders of the parent 0
0001004315-25-000012 3 16 IS 0 H Profit Loss Attributable To Noncontrolling Interests ifrs/2024 Non-controlling interests 0
0001004315-25-000012 3 18 IS 0 H Basic Earnings Loss Per Share From Continuing Operations ifrs/2024 Basic earnings per share (continuing) (in GBP pence per share) 0
0001004315-25-000012 3 19 IS 0 H Diluted Earnings Loss Per Share From Continuing Operations ifrs/2024 Diluted earnings per share (continuing) (in GBP pence per share) 0
0001004315-25-000012 3 20 IS 0 H Basic Earnings Loss Per Share ifrs/2024 Basic earnings per share (continuing and discontinued) (in GBP pence per share) 0
0001004315-25-000012 3 21 IS 0 H Diluted Earnings Loss Per Share ifrs/2024 Diluted earnings per share (continuing and discontinued) (in GBP pence per share) 0
0001004315-25-000012 4 1 CI 0 H Profit Loss From Continuing Operations ifrs/2024 Profit after tax from continuing operations 0
0001004315-25-000012 4 2 CI 0 H Profit Loss From Discontinued Operations ifrs/2024 Profit after tax from discontinued operations 0
0001004315-25-000012 4 5 CI 0 H Other Comprehensive Income Before Tax Gains Losses On Remeasurements Of Defined Benefit Plans ifrs/2024 Remeasurement losses on pension assets and post-retirement benefit obligations 0
0001004315-25-000012 4 6 CI 0 H Other Comprehensive Income Before Tax Gains Losses In Respect Of Cash Flow Hedging Of Capital Expenditure 0001004315-25-000012 Net (losses)/gains in respect of cash flow hedging of capital expenditure 0
0001004315-25-000012 4 7 CI 0 H Income Tax Relating To Components Of Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss ifrs/2024 Tax on items that will never be reclassified to profit or loss 1
0001004315-25-000012 4 8 CI 0 H Other Comprehensive Income That Will Not Be Reclassified To Profit Or Loss Net Of Tax ifrs/2024 Total items from continuing operations that will never be reclassified to profit or loss 0
0001004315-25-000012 4 10 CI 0 H Gains Losses On Exchange Differences On Translation Net Of Net Investment Hedge Before Tax 0001004315-25-000012 Retranslation of net assets offset by net investment hedge 0
0001004315-25-000012 4 11 CI 0 H Reclassification Adjustments On Exchange Differences On Translation Before Tax ifrs/2024 Exchange differences reclassified to the consolidated income statement on disposal 1
0001004315-25-000012 4 12 CI 0 H Gains Losses On Cash Flow Hedges Before Tax ifrs/2024 Net gains in respect of cash flow hedges 0
0001004315-25-000012 4 13 CI 0 H Gains Losses On Cost Of Hedging Before Tax 0001004315-25-000012 Net (losses)/gains in respect of cost of hedging 0
0001004315-25-000012 4 14 CI 0 H Gains Losses On Investments In Debt Instruments Measured At Fair Value Through Other Comprehensive Income 0001004315-25-000012 Net gains/(losses) on investment in debt instruments measured at fair value through other comprehensive income 0
0001004315-25-000012 4 15 CI 0 H Share Of Other Comprehensive Income Of Associates And Joint Ventures Accounted For Using Equity Method That Will Be Reclassified To Profit Or Loss Net Of Tax ifrs/2024 Share of other comprehensive income of associates, net of tax 0
0001004315-25-000012 4 16 CI 0 H Income Tax Relating To Components Of Other Comprehensive Income That Will Be Reclassified To Profit Or Loss ifrs/2024 Tax on items that may be reclassified subsequently to profit or loss 1
0001004315-25-000012 4 17 CI 0 H Other Comprehensive Income That Will Be Reclassified To Profit Or Loss Net Of Tax ifrs/2024 Total items from continuing operations that may be reclassified subsequently to profit or loss 0
0001004315-25-000012 4 18 CI 0 H Other Comprehensive Income From Continuing Operations 0001004315-25-000012 Other comprehensive loss 0
0001004315-25-000012 4 19 CI 0 H Other Comprehensive Income From Discontinuing Operations 0001004315-25-000012 Other comprehensive (loss)/income for the year, net of tax from discontinued operations 0
0001004315-25-000012 4 20 CI 0 H Other Comprehensive Income ifrs/2024 Other comprehensive (loss)/income for the year 0
0001004315-25-000012 4 21 CI 0 H Comprehensive Income From Continuing Operations ifrs/2024 Total comprehensive income for the year from continuing operations 0
0001004315-25-000012 4 22 CI 0 H Comprehensive Income From Discontinued Operations ifrs/2024 Total comprehensive income for the year from discontinued operations 0
0001004315-25-000012 4 23 CI 0 H Comprehensive Income ifrs/2024 Total comprehensive income for the year 0
0001004315-25-000012 4 25 CI 0 H Comprehensive Income Attributable To Owners Of Parent From Continuing Operations 0001004315-25-000012 Equity shareholders of the parent from continuing operations 0
0001004315-25-000012 4 26 CI 0 H Comprehensive Income Attributable To Owners Of Parent From Discontinued Operations 0001004315-25-000012 Equity shareholders of the parent from discontinued operations 0
0001004315-25-000012 4 27 CI 0 H Comprehensive Income Attributable To Owners Of Parent ifrs/2024 Equity shareholders of the parent 0
0001004315-25-000012 4 28 CI 0 H Comprehensive Income Attributable To Noncontrolling Interests ifrs/2024 Non-controlling interests 0
0001004315-25-000012 5 11 EQ 0 H Equity ifrs/2024 Equity, beginning balance 0
0001004315-25-000012 5 12 EQ 0 H Profit Loss ifrs/2024 Profit for the year 0
0001004315-25-000012 5 13 EQ 0 H Other Comprehensive Income ifrs/2024 Other comprehensive (loss)/income for the year 0
0001004315-25-000012 5 14 EQ 0 H Comprehensive Income ifrs/2024 Total comprehensive income for the year 0
0001004315-25-000012 5 15 EQ 0 H Issue Of Equity ifrs/2024 Rights Issue 0
0001004315-25-000012 5 16 EQ 0 H Increase Decrease Through Transfer To Statutory Reserve ifrs/2024 Transfer between reserves 0
0001004315-25-000012 5 17 EQ 0 H Dividends Paid ifrs/2024 Equity dividends 1
0001004315-25-000012 5 18 EQ 0 H Scrip Dividends Related Share Issue Recognized As Distributions To Owners 0001004315-25-000012 Scrip dividend-related share issue 0
0001004315-25-000012 5 19 EQ 0 H Sale Or Issue Of Treasury Shares ifrs/2024 Issue of treasury shares 0
0001004315-25-000012 5 20 EQ 0 H Increase Decrease Through Treasury Share Transactions ifrs/2024 Transactions in own shares 0
0001004315-25-000012 5 21 EQ 0 H Increase Decrease Through Other Movements In Non Controlling Interests Equity 0001004315-25-000012 Other movements in non-controlling interests 0
0001004315-25-000012 5 22 EQ 0 H Increase Decrease Through Sharebased Payment Transactions ifrs/2024 Share-based payments 0
0001004315-25-000012 5 23 EQ 0 H Decrease Increase Through Tax On Sharebased Payment Transactions ifrs/2024 Tax on share-based payments 1
0001004315-25-000012 5 24 EQ 0 H Increase Decrease Through Cash Flow Hedges Transferred To The Statement Of Financial Position After Tax Equity 0001004315-25-000012 Cash flow hedges transferred to the statement of financial position, net of tax 0
0001004315-25-000012 5 25 EQ 0 H Equity ifrs/2024 Equity, ending balance 0
0001004315-25-000012 6 2 BS 0 H Goodwill ifrs/2024 Goodwill 0
0001004315-25-000012 6 3 BS 0 H Intangible Assets Other Than Goodwill ifrs/2024 Other intangible assets 0
0001004315-25-000012 6 4 BS 0 H Property Plant And Equipment Including Rightofuse Assets ifrs/2024 Property, plant and equipment 0
0001004315-25-000012 6 5 BS 0 H Other Noncurrent Assets ifrs/2024 Other non-current assets 0
0001004315-25-000012 6 6 BS 0 H Noncurrent Recognised Assets Defined Benefit Plan ifrs/2024 Pension assets 0
0001004315-25-000012 6 7 BS 0 H Other Noncurrent Financial Assets ifrs/2024 Financial and other investments 0
0001004315-25-000012 6 8 BS 0 H Investment Accounted For Using Equity Method ifrs/2024 Investments in joint ventures and associates 0
0001004315-25-000012 6 9 BS 0 H Noncurrent Derivative Financial Assets ifrs/2024 Derivative financial assets 0
0001004315-25-000012 6 10 BS 0 H Noncurrent Assets ifrs/2024 Total non-current assets 0
0001004315-25-000012 6 12 BS 0 H Inventories ifrs/2024 Inventories 0
0001004315-25-000012 6 13 BS 0 H Trade And Other Current Receivables ifrs/2024 Trade and other receivables 0
0001004315-25-000012 6 14 BS 0 H Current Tax Assets Current ifrs/2024 Current tax assets 0
0001004315-25-000012 6 15 BS 0 H Other Current Financial Assets ifrs/2024 Financial and other investments 0
0001004315-25-000012 6 16 BS 0 H Current Derivative Financial Assets ifrs/2024 Derivative financial assets 0
0001004315-25-000012 6 17 BS 0 H Cash And Cash Equivalents ifrs/2024 Cash and cash equivalents 0
0001004315-25-000012 6 18 BS 0 H Noncurrent Assets Or Disposal Groups Classified As Held For Sale ifrs/2024 Assets held for sale 0
0001004315-25-000012 6 19 BS 0 H Current Assets ifrs/2024 Total current assets 0
0001004315-25-000012 6 20 BS 0 H Assets ifrs/2024 Total assets 0
0001004315-25-000012 6 22 BS 0 H Current Borrowings And Current Portion Of Noncurrent Borrowings ifrs/2024 Borrowings 1
0001004315-25-000012 6 23 BS 0 H Current Derivative Financial Liabilities ifrs/2024 Derivative financial liabilities 1
0001004315-25-000012 6 24 BS 0 H Trade And Other Current Payables ifrs/2024 Trade and other payables 1
0001004315-25-000012 6 25 BS 0 H Current Contract Liabilities ifrs/2024 Contract liabilities 1
0001004315-25-000012 6 26 BS 0 H Current Tax Liabilities Current ifrs/2024 Current tax liabilities 1
0001004315-25-000012 6 27 BS 0 H Other Shortterm Provisions ifrs/2024 Provisions 1
0001004315-25-000012 6 28 BS 0 H Liabilities Included In Disposal Groups Classified As Held For Sale ifrs/2024 Liabilities held for sale 1
0001004315-25-000012 6 29 BS 0 H Current Liabilities ifrs/2024 Total current liabilities 1
0001004315-25-000012 6 31 BS 0 H Longterm Borrowings ifrs/2024 Borrowings 1
0001004315-25-000012 6 32 BS 0 H Noncurrent Derivative Financial Liabilities ifrs/2024 Derivative financial liabilities 1
0001004315-25-000012 6 33 BS 0 H Other Noncurrent Liabilities ifrs/2024 Other non-current liabilities 1
0001004315-25-000012 6 34 BS 0 H Noncurrent Contract Liabilities ifrs/2024 Contract liabilities 1
0001004315-25-000012 6 35 BS 0 H Deferred Tax Liabilities ifrs/2024 Deferred tax liabilities 1
0001004315-25-000012 6 36 BS 0 H Noncurrent Provisions For Employee Benefits ifrs/2024 Pensions and other post-retirement benefit obligations 1
0001004315-25-000012 6 37 BS 0 H Other Longterm Provisions ifrs/2024 Provisions 1
0001004315-25-000012 6 38 BS 0 H Noncurrent Liabilities ifrs/2024 Total non-current liabilities 1
0001004315-25-000012 6 39 BS 0 H Liabilities ifrs/2024 Total liabilities 1
0001004315-25-000012 6 40 BS 0 H Net Assets Liabilities ifrs/2024 Net assets 0
0001004315-25-000012 6 42 BS 0 H Issued Capital ifrs/2024 Share capital 0
0001004315-25-000012 6 43 BS 0 H Share Premium ifrs/2024 Share premium account 0
0001004315-25-000012 6 44 BS 0 H Retained Earnings ifrs/2024 Retained earnings 0
0001004315-25-000012 6 45 BS 0 H Other Reserves ifrs/2024 Other equity reserves 0
0001004315-25-000012 6 46 BS 0 H Equity Attributable To Owners Of Parent ifrs/2024 Total shareholders equity 0
0001004315-25-000012 6 47 BS 0 H Noncontrolling Interests ifrs/2024 Non-controlling interests 0
0001004315-25-000012 6 48 BS 0 H Equity ifrs/2024 Total equity 0
0001004315-25-000012 7 13 CF 0 H Profit Loss From Operating Activities ifrs/2024 Total operating profit from continuing operations 0
0001004315-25-000012 7 15 CF 0 H Adjustments For Gain Loss On Disposal Of Investments In Subsidiaries Joint Ventures And Associates ifrs/2024 Gain on sale of investments 1
0001004315-25-000012 7 16 CF 0 H Adjustments For Fair Value Gains Losses ifrs/2024 Other fair value movements 0
0001004315-25-000012 7 17 CF 0 H Adjustments For Depreciation And Amortisation Expense And Impairment Loss Reversal Of Impairment Loss Recognised In Profit Or Loss ifrs/2024 Depreciation, amortisation and impairment 0
0001004315-25-000012 7 18 CF 0 H Adjustments For Sharebased Payments ifrs/2024 Share-based payments 0
0001004315-25-000012 7 19 CF 0 H Increase Decrease In Working Capital ifrs/2024 Changes in working capital 1
0001004315-25-000012 7 20 CF 0 H Adjustments For Provisions ifrs/2024 Changes in provisions 0
0001004315-25-000012 7 21 CF 0 H Adjustments For Increase Decrease In Employee Benefit Liabilities ifrs/2024 Changes in pensions and other post-retirement benefit obligations 0
0001004315-25-000012 7 22 CF 0 H Cash Flows From Used In Operations ifrs/2024 Cash generated from operations continuing operations 0
0001004315-25-000012 7 23 CF 0 H Income Taxes Paid Refund Classified As Operating Activities ifrs/2024 Tax paid 1
0001004315-25-000012 7 24 CF 0 H Cash Flows From Used In Operating Activities Continuing Operations ifrs/2024 Net cash inflow from operating activities continuing operations 0
0001004315-25-000012 7 25 CF 0 H Cash Flows From Used In Operating Activities Discontinued Operations ifrs/2024 Net cash inflow from operating activities discontinued operations 0
0001004315-25-000012 7 27 CF 0 H Purchase Of Intangible Assets Classified As Investing Activities ifrs/2024 Purchases of intangible assets 1
0001004315-25-000012 7 28 CF 0 H Purchase Of Property Plant And Equipment Classified As Investing Activities ifrs/2024 Purchases of property, plant and equipment 1
0001004315-25-000012 7 29 CF 0 H Proceeds From Sales Of Property Plant And Equipment Classified As Investing Activities ifrs/2024 Disposals of property, plant and equipment 0
0001004315-25-000012 7 30 CF 0 H Purchase Of Interests In Investments Accounted For Using Equity Method ifrs/2024 Investments in joint ventures and associates 1
0001004315-25-000012 7 31 CF 0 H Dividends Received From Joint Ventures Associates And Other Investments Classified As Investing Activities 0001004315-25-000012 Dividends received from joint ventures, associates and other investments 0
0001004315-25-000012 7 32 CF 0 H Cash Flows From Losing Control Of Subsidiaries Or Other Businesses Classified As Investing Activities ifrs/2024 Disposal of interests in the UK Electricity System Operator, UK Gas Transmission business, The Narragansett Electric Company and Millennium Pipeline Company LLC 0
0001004315-25-000012 7 33 CF 0 H Proceeds From Sales Of Investments Other Than Investments Accounted For Using Equity Method ifrs/2024 Disposal of financial and other investments 0
0001004315-25-000012 7 34 CF 0 H Purchase Of Investments Other Than Investments Accounted For Using Equity Method ifrs/2024 Acquisition of financial investments 1
0001004315-25-000012 7 35 CF 0 H Cash Flows Used In Obtaining Control Of Subsidiaries Or Other Businesses Classified As Investing Activities ifrs/2024 Contributions to National Grid Renewables and Emerald Energy Venture LLC 1
0001004315-25-000012 7 36 CF 0 H Cash Flows From Used In Decrease Increase In Shortterm Deposits And Investments ifrs/2024 Net movements in short-term financial investments 0
0001004315-25-000012 7 37 CF 0 H Interest Received Classified As Investing Activities ifrs/2024 Interest received 0
0001004315-25-000012 7 38 CF 0 H Cash Receipts From Future Contracts Forward Contracts Option Contracts And Swap Contracts Classified As Investing Activities ifrs/2024 Cash inflows on derivatives 0
0001004315-25-000012 7 39 CF 0 H Cash Payments For Future Contracts Forward Contracts Option Contracts And Swap Contracts Classified As Investing Activities ifrs/2024 Cash outflows on derivatives 1
0001004315-25-000012 7 40 CF 0 H Cash Flows Relating To Insurance Claim From Loss Of Property Plant And Equipment Investing Activities 0001004315-25-000012 Insurance claim from loss of property, plant and equipment 0
0001004315-25-000012 7 41 CF 0 H Cash Flows From Used In Investing Activities Continuing Operations ifrs/2024 Net cash flow (used in)/from investing activities continuing operations 0
0001004315-25-000012 7 42 CF 0 H Cash Flows From Used In Investing Activities Discontinued Operations ifrs/2024 Net cash flow from/(used in) investing activities discontinued operations 0
0001004315-25-000012 7 44 CF 0 H Proceeds From Issue Of Ordinary Shares ifrs/2024 Proceeds of Rights Issue 0
0001004315-25-000012 7 45 CF 0 H Payments For Share Issue Costs ifrs/2024 Transaction fees related to Rights Issue 1
0001004315-25-000012 7 46 CF 0 H Proceeds From Sale Or Issue Of Treasury Shares ifrs/2024 Proceeds from issue of treasury shares 0
0001004315-25-000012 7 47 CF 0 H Transactions In Own Shares 0001004315-25-000012 Transactions in own shares 0
0001004315-25-000012 7 48 CF 0 H Proceeds From Borrowings Classified As Financing Activities ifrs/2024 Proceeds received from loans 0
0001004315-25-000012 7 49 CF 0 H Repayments Of Borrowings Classified As Financing Activities ifrs/2024 Repayment of loans 1
0001004315-25-000012 7 50 CF 0 H Payments Of Lease Liabilities Classified As Financing Activities ifrs/2024 Payments of lease liabilities 1
0001004315-25-000012 7 51 CF 0 H Cash Flows From Used In Increase Decrease In Current Borrowings ifrs/2024 Net movements in short-term borrowings 0
0001004315-25-000012 7 52 CF 0 H Proceeds From Derivatives Contracts Classified As Financing Activities 0001004315-25-000012 Cash inflows on derivatives 0
0001004315-25-000012 7 53 CF 0 H Payments For Derivatives Contracts Classified As Financing Activities 0001004315-25-000012 Cash outflows on derivatives 1
0001004315-25-000012 7 54 CF 0 H Interest Paid Classified As Financing Activities ifrs/2024 Interest paid 1
0001004315-25-000012 7 55 CF 0 H Dividends Paid Classified As Financing Activities ifrs/2024 Dividends paid to shareholders 1
0001004315-25-000012 7 56 CF 0 H Cash Flows From Used In Financing Activities Continuing Operations ifrs/2024 Net cash flow from/(used in) financing activities continuing operations 0
0001004315-25-000012 7 57 CF 0 H Cash Flows From Used In Financing Activities Discontinued Operations ifrs/2024 Net cash flow used in financing activities discontinued operations 0
0001004315-25-000012 7 59 CF 0 H Increase Decrease In Cash And Cash Equivalents Before Effect Of Exchange Rate Changes ifrs/2024 Net increase/(decrease) in cash and cash equivalents 0
0001004315-25-000012 7 60 CF 0 H Increase Decrease In Cash And Cash Equivalents Through Reclassification To Held For Sale And Discontinued Operations 0001004315-25-000012 Reclassification to held for sale 0
0001004315-25-000012 7 61 CF 0 H Effect Of Exchange Rate Changes On Cash And Cash Equivalents ifrs/2024 Exchange movements 0
0001004315-25-000012 7 62 CF 0 H Cash And Cash Equivalents If Different From Statement Of Financial Position ifrs/2024 Cash and cash equivalents at start of year 0
0001004315-25-000012 7 63 CF 0 H Cash And Cash Equivalents If Different From Statement Of Financial Position ifrs/2024 Cash and cash equivalents at end of year 0

Description
Field Name Field Description
adsh Accession Number. The 20-character string formed from the 18-digit number assigned by the SEC to each EDGAR submission.
report Represents the report grouping. This field corresponds to the statement (stmt) field, which indicates the type of statement. The numeric value refers to the “R file” as posted on the EDGAR Web site.
line Represents the tag’s presentation line order for a given report. Together with the statement and report field, presentation location, order and grouping can be derived.
stmt The financial statement location to which the value of the “report” field pertains.
inpth Value was presented “parenthetically” instead of in columns within the financial statements. For example: Receivables (net of allowance for bad debts of $200 in 2012) $700.
rfile The type of interactive data file rendered on the EDGAR web site, H = .htm file, X = .xml file.
tag The tag chosen by the filer for this line item.
version The taxonomy identifier if the tag is a standard tag, otherwise adsh.
plabel The text presented on the line item, also known as a “preferred” label.
negating Flag to indicate whether the plabel is negating.