Profit Or Loss [Abstract]

SEB S.A. - Filing #5983261

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	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	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31
Profit or loss [abstract]
Profit (loss) [abstract]
Profit (loss) from operating activities	—	—	5,400,000,000 EUR	—	—	—	—	—	—	—	6,675,000,000 EUR	—	—	—	—	—
Profit (loss) before tax	—	—	4,202,000,000 EUR	—	—	—	—	—	—	—	5,870,000,000 EUR	—	—	—	—	—
Tax expense (income)	—	—	1,375,000,000 EUR	—	—	—	—	—	—	—	1,476,000,000 EUR	—	—	—	—	—
Profit (loss)	507,000,000 EUR	0 EUR	2,827,000,000 EUR	0 EUR	0 EUR	0 EUR	2,320,000,000 EUR	2,320,000,000 EUR	0 EUR	0 EUR	4,394,000,000 EUR	0 EUR	532,000,000 EUR	0 EUR	3,862,000,000 EUR	3,862,000,000 EUR
Profit (loss), attributable to [abstract]
Profit (loss), attributable to owners of parent	—	—	2,320,000,000 EUR	—	—	—	—	—	—	—	3,862,000,000 EUR	—	—	—	—	—
Profit (loss), attributable to non-controlling interests	—	—	507,000,000 EUR	—	—	—	—	—	—	—	532,000,000 EUR	—	—	—	—	—
Earnings per share [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Earnings per share [abstract]
Earnings per share [line items]
Basic earnings per share [abstract]
Basic earnings (loss) per share	—	—	426.00	—	—	—	—	—	—	—	701.00	—	—	—	—	—
Diluted earnings per share [abstract]
Diluted earnings (loss) per share	—	—	423.00	—	—	—	—	—	—	—	697.00	—	—	—	—	—