Statement Of Comprehensive Income [Abstract]

Elisa Oyj - Filing #3632475

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31
Statement of comprehensive income [abstract]
Profit (loss)	20,000,000 EUR	3,564,000,000 EUR	—	3,584,000,000 EUR	3,584,000,000 EUR	3,740,000,000 EUR	12,000,000 EUR	3,752,000,000 EUR	3,752,000,000 EUR	—
Other comprehensive income [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, net of tax [abstract]
Other comprehensive income, net of tax, gains (losses) on remeasurements of defined benefit plans	—	2,000,000 EUR	2,000,000 EUR	—	2,000,000 EUR	12,000,000 EUR	—	—	12,000,000 EUR	12,000,000 EUR
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]
Exchange differences on translation [abstract]
Other comprehensive income, net of tax, exchange differences on translation of foreign operations	0 EUR	15,000,000 EUR	—	16,000,000 EUR	16,000,000 EUR	4,000,000 EUR	0 EUR	4,000,000 EUR	4,000,000 EUR	—
Cash flow hedges [abstract]
Other comprehensive income, net of tax, cash flow hedges	—	5,000,000 EUR	5,000,000 EUR	—	5,000,000 EUR	1,000,000 EUR	—	—	1,000,000 EUR	1,000,000 EUR
Other comprehensive income	0 EUR	23,000,000 EUR	8,000,000 EUR	16,000,000 EUR	23,000,000 EUR	8,000,000 EUR	0 EUR	4,000,000 EUR	8,000,000 EUR	12,000,000 EUR
Comprehensive income	19,000,000 EUR	3,541,000,000 EUR	8,000,000 EUR	3,568,000,000 EUR	3,560,000,000 EUR	3,748,000,000 EUR	12,000,000 EUR	3 74,8 EUR	3,760,000,000 EUR	12,000,000 EUR
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	3,560,000,000 EUR	—	—	—	3,760,000,000 EUR	—	—	—	—
Comprehensive income, attributable to non-controlling interests	—	19,000,000 EUR	—	—	—	12,000,000 EUR	—	—	—	—