Statement Of Changes In Equity [Abstract]

Sampo Oyj - Filing #2159940

Concept	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	6 378 EUR	—	—	424,000,000 EUR	—	—	98,000,000 EUR	742,000,000 EUR	—	— EUR	1 527 EUR	—	1,000,000 EUR	—	—	4,000,000 EUR	—	7 687 EUR	—	7 263 EUR	—	741,000,000 EUR	—	9 618 EUR	248,000,000 EUR	1 527 EUR	—	1 527 EUR	— EUR	— EUR	— EUR	248,000,000 EUR	— EUR	— EUR	— EUR	— EUR	— EUR	— EUR	248,000,000 EUR	— EUR	10 178 EUR	—	560,000,000 EUR	8 482 EUR	98,000,000 EUR	741,000,000 EUR	9 618 EUR	10 178 EUR	560,000,000 EUR	98,000,000 EUR	8 730 EUR	4,000,000 EUR	—	—	4,000,000 EUR	—	—	0 EUR	—	—	— EUR	1 527 EUR	1 622 EUR	— EUR	7,000,000 EUR	9,000,000 EUR	16,000,000 EUR	— EUR	25,000,000 EUR	1 646 EUR	4,000,000 EUR	4,000,000 EUR	23,000,000 EUR	1 527 EUR	— EUR	— EUR	— EUR	13 464 EUR	12 788 EUR	98,000,000 EUR	676,000,000 EUR	415,000,000 EUR	12 805 EUR	651,000,000 EUR	415,000,000 EUR	98,000,000 EUR	9 945 EUR	13 456 EUR	— EUR	9 952 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	70,000,000 EUR	1 323 EUR	—	— EUR	— EUR	—	—	— EUR	—	—	— EUR	—	— EUR	1 393 EUR	—	— EUR	—	1 323 EUR	—	— EUR	—	— EUR	—	—	—	— EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2 240 EUR	—	—	—	—	—	—	—	—	—	—	2 107 EUR	— EUR	—	2 107 EUR	133,000,000 EUR	—	— EUR	— EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	— EUR	5,000,000 EUR	—	1,000,000 EUR	— EUR	—	—	— EUR	—	—	— EUR	—	1,000,000 EUR	8,000,000 EUR	—	— EUR	—	8,000,000 EUR	—	— EUR	—	1 396 EUR	—	—	—	— EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1 639 EUR	—	—	—	—	—	—	—	—	—	—	1 639 EUR	268,000,000 EUR	—	26,000,000 EUR	— EUR	—	— EUR	— EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	70,000,000 EUR	1 318 EUR	—	1,000,000 EUR	— EUR	—	—	— EUR	—	—	— EUR	—	1,000,000 EUR	1 386 EUR	—	— EUR	—	1 316 EUR	—	— EUR	—	1 396 EUR	—	—	—	— EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	601,000,000 EUR	—	—	—	—	—	—	—	—	—	—	468,000,000 EUR	268,000,000 EUR	—	2 133 EUR	133,000,000 EUR	—	— EUR	— EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	187,000,000 EUR	1 321 EUR	—	— EUR	— EUR	—	—	— EUR	—	—	— EUR	—	— EUR	1 508 EUR	—	— EUR	—	1 321 EUR	—	— EUR	—	— EUR	—	—	—	— EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2 393 EUR	—	—	—	—	—	—	—	—	—	—	2 186 EUR	— EUR	—	2 186 EUR	207,000,000 EUR	—	— EUR	— EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	—	15,000,000 EUR	51,000,000 EUR	—	— EUR	— EUR	—	—	— EUR	—	—	— EUR	—	— EUR	36,000,000 EUR	—	— EUR	—	51,000,000 EUR	—	— EUR	—	1,000,000 EUR	—	—	—	— EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	24,000,000 EUR	—	—	—	—	—	—	—	—	—	—	9,000,000 EUR	58,000,000 EUR	—	51,000,000 EUR	15,000,000 EUR	—	— EUR	— EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity	—	3,000,000 EUR	11,000,000 EUR	—	— EUR	— EUR	—	—	— EUR	—	—	— EUR	—	— EUR	14,000,000 EUR	—	— EUR	—	11,000,000 EUR	—	— EUR	—	— EUR	—	—	—	— EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	8,000,000 EUR	—	—	—	—	—	—	—	—	—	—	6,000,000 EUR	— EUR	—	6,000,000 EUR	2,000,000 EUR	—	— EUR	— EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—