Analysis Of Income And Expense [Abstract]

Elisa Oyj - Filing #3632467

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
Analysis of income and expense [abstract]
Revenue [abstract]
Revenue	—	2,191,500,000 EUR	—	—	—	2,180,500,000 EUR	—	—	—	—
Expenses by nature [abstract]
Classes of employee benefits expense [abstract]
Employee benefits expense	—	433 .3 EUR	—	—	—	417 .1 EUR	—	—	—	—
Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract]
Depreciation and amortisation expense [abstract]
Depreciation and amortisation expense	—	279 .2 EUR	—	—	—	274,100,000 EUR	—	—	—	—
Other expenses, by nature	—	213,500,000 EUR	—	—	—	199 .3 EUR	—	—	—	—
Disclosure of attribution of expenses by nature to their function [text block]	—	—	—	—	—	—	—	—	—	—
Disclosure of attribution of expenses by nature to their function [abstract]
Disclosure of attribution of expenses by nature to their function [line items]
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	0 EUR	1,500,000 EUR	—	1,600,000 EUR	1,600,000 EUR	400,000 EUR	0 EUR	400,000 EUR	400,000 EUR	—
Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract]
Share of profit (loss) of associates accounted for using equity method	—	1,200,000 EUR	—	—	—	400,000 EUR	—	—	—	—
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	1,900,000 EUR	354,100,000 EUR	800,000 EUR	356,800,000 EUR	356,000,000 EUR	374,800,000 EUR	1,200,000 EUR	374,800,000 EUR	376,000,000 EUR	1,200,000 EUR
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	—	356,000,000 EUR	—	—	—	376,000,000 EUR	—	—	—	—
Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract]
Comprehensive income, attributable to non-controlling interests	—	1,900,000 EUR	—	—	—	1,200,000 EUR	—	—	—	—