Statement Of Comprehensive Income [Abstract]

Sampo Oyj - Filing #2159940

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 EUR	— EUR	1 323 EUR	70,000,000 EUR	1 323 EUR	— EUR	— EUR	— EUR	— EUR	— EUR	2 240 EUR	2 107 EUR	133,000,000 EUR	— EUR	— EUR	2 107 EUR	— EUR	— EUR	— EUR
Other comprehensive income [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract]
Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans	—	6,000,000 EUR	—	—	—	—	—	—	—	—	—	32,000,000 EUR	—	—	—	—	—	—	—	—
Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract]
Exchange differences on translation [abstract]
Other comprehensive income, before tax, exchange differences on translation of foreign operations	—	1,000,000 EUR	—	—	—	—	—	—	—	—	—	268,000,000 EUR	—	—	—	—	—	—	—	—
Available-for-sale financial assets [abstract]
Other comprehensive income, before tax, available-for-sale financial assets	—	— EUR	—	—	—	—	—	—	—	—	—	1 121 EUR	—	—	—	—	—	—	—	—
Cash flow hedges [abstract]
Other comprehensive income, before tax, cash flow hedges	—	1,000,000 EUR	—	—	—	—	—	—	—	—	—	0 EUR	—	—	—	—	—	—	—	—
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract]
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss	—	1,000,000 EUR	—	—	—	—	—	—	—	—	—	7,000,000 EUR	—	—	—	—	—	—	—	—
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract]
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss	—	— EUR	—	—	—	—	—	—	—	—	—	209,000,000 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 EUR	26,000,000 EUR	— EUR	— EUR	— EUR	1 639 EUR	— EUR	268,000,000 EUR	1 396 EUR
Comprehensive income	— EUR	1 386 EUR	— EUR	1 316 EUR	70,000,000 EUR	1 318 EUR	— EUR	1,000,000 EUR	— EUR	1,000,000 EUR	— EUR	601,000,000 EUR	2 133 EUR	133,000,000 EUR	— EUR	— EUR	468,000,000 EUR	— EUR	268,000,000 EUR	1 396 EUR
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	1 316 EUR	—	—	—	—	—	—	—	—	—	468,000,000 EUR	—	—	—	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	—	70,000,000 EUR	—	—	—	—	—	—	—	—	—	133,000,000 EUR	—	—	—	—	—	—	—	—