Statement Of Comprehensive Income [Abstract]

Sampo Oyj - Filing #2159939

Concept	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	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	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31
Statement of comprehensive income [abstract]
Profit (loss)	— EUR	1,393,000,000 EUR	— EUR	1,323,000,000 EUR	70,000,000 EUR	1,323,000,000 EUR	— EUR	— EUR	— EUR	— EUR	— EUR	2,240,000,000 EUR	2,107,000,000 EUR	133,000,000 EUR	— EUR	— EUR	2,107,000,000 EUR	— EUR	— EUR	— 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	—	—	—	—	—	5,000,000 EUR	—	—	—	—	—	—	26,000,000 EUR	—	—	—	—	—	—	—
Other comprehensive income that will not be reclassified to profit or loss, net of tax	—	5,000,000 EUR	—	—	—	—	—	—	—	—	—	26,000,000 EUR	—	—	—	—	—	—	—	—
Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]
Financial assets measured at fair value through other comprehensive income [abstract]
Gains (losses) on financial assets measured at fair value through other comprehensive income, net of tax	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1,300,000,000 EUR
Reclassification adjustments on financial assets measured at fair value through other comprehensive income, net of tax	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	96,000,000 EUR
Other comprehensive income that will be reclassified to profit or loss, net of tax	—	3,000,000 EUR	—	—	—	—	—	—	—	—	—	1,180,000,000 EUR	—	—	—	—	—	—	—	—
Other comprehensive income	— EUR	8,000,000 EUR	— EUR	8,000,000 EUR	— EUR	5,000,000 EUR	— EUR	1,000,000 EUR	— EUR	1,000,000 EUR	— EUR	1,639,000,000 EUR	26,000,000 EUR	— EUR	— EUR	— EUR	1,639,000,000 EUR	— EUR	268,000,000 EUR	1,396,000,000 EUR
Comprehensive income	— EUR	1,386,000,000 EUR	— EUR	1,316,000,000 EUR	70,000,000 EUR	1,318,000,000 EUR	— EUR	1,000,000 EUR	— EUR	1,000,000 EUR	— EUR	601,000,000 EUR	2,133,000,000 EUR	133,000,000 EUR	— EUR	— EUR	468,000,000 EUR	— EUR	268,000,000 EUR	1,396,000,000 EUR
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	1,316,000,000 EUR	—	—	—	—	—	—	—	—	—	468,000,000 EUR	—	—	—	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	—	70,000,000 EUR	—	—	—	—	—	—	—	—	—	133,000,000 EUR	—	—	—	—	—	—	—	—