Analysis Of Income And Expense [Abstract]

SSE PLC - Filing #2047315

Concept	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	2023-04-01 to 2024-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31	2022-04-01 to 2023-03-31
Analysis of income and expense [abstract]
Revenue [abstract]
Revenue	1 0 , 4 5 7. 2 GBP	—	—	—	—	—	—	– GBP	1 0 , 4 5 7. 2 GBP	—	—	—	—	—	—	—	—	—	1 2,490.7 GBP	—	—	—	—	—	– GBP	12,490,700,000 GBP
Material income and expense [abstract]
Operating expense	1 , 848 .6 GBP	—	—	—	—	—	—	270. 9 GBP	1 , 5 7 7. 7 GBP	—	—	—	—	—	—	—	—	—	1, 431 .6 GBP	—	—	—	—	—	230,400,000 GBP	1 ,662.0 GBP
Expenses by nature [abstract]
Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract]
Impairment loss (reversal of impairment loss) recognised in profit or loss	12 8.8 GBP	—	—	—	—	—	—	– GBP	128,800,000 GBP	—	—	—	—	—	—	—	—	—	91,000,000 GBP	—	—	—	—	—	– GBP	91,000,000 GBP
Miscellaneous other comprehensive income [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations	66 .6 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	72,500,000 GBP
Other comprehensive income, net of tax, hedges of net investments in foreign operations	30,900,000 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	43 .1 GBP
Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract]
Share of profit (loss) of associates and joint ventures accounted for using equity method	114. 1 GBP	—	—	—	—	—	—	46. 1 GBP	68,000,000 GBP	—	—	—	—	—	—	—	—	—	357 .8 GBP	—	—	—	—	—	304. 5 GBP	662 .3 GBP
Share of other comprehensive income of associates and joint ventures accounted for using equity method, net of tax [abstract]
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	4 0. 9 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	342,400,000 GBP
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	1 ,7 03. 2 GBP	– GBP	– GBP	– GBP	1,597 .6 GBP	100,800,000 GBP	34,700,000 GBP	—	—	1 ,6 02 .4 GBP	73. 1 GBP	33,600,000 GBP	1 , 529. 3 GBP	– GBP	24 5 . 2 GBP	38,800,000 GBP	363,700,000 GBP	20 6. 4 GBP	—	25. 5 GBP	– GBP	– GBP	182. 8 GBP	28 .7 GBP	—	27 3 .9 GBP
Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract]
Comprehensive income, attributable to non-controlling interests	100. 8 GBP	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	28 .7 GBP