Analysis Of Income And Expense [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
Analysis of income and expense [abstract]
Material income and expense [abstract]
Finance income (cost)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Other finance income (cost)	—	—	381,000,000 EUR	—	—	—	—	—	—	—	376,000,000 EUR	—	—	—	—	—
Miscellaneous other comprehensive income [abstract]
Other comprehensive income, before tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract]
Other comprehensive income, before tax, exchange differences on translation of foreign operations	—	—	404,000,000 EUR	—	—	—	—	—	—	—	1,029,000,000 EUR	—	—	—	—	—
Income tax relating to components of other comprehensive income [abstract]
Income tax relating to components of other comprehensive income	—	—	17,000,000 EUR	—	—	—	—	—	—	—	168,000,000 EUR	—	—	—	—	—
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	490,000,000 EUR	0 EUR	3,009,000,000 EUR	0 EUR	0 EUR	376,000,000 EUR	2,143,000,000 EUR	2,519,000,000 EUR	0 EUR	892,000,000 EUR	2,740,000,000 EUR	0 EUR	382,000,000 EUR	0 EUR	2,358,000,000 EUR	3,250,000,000 EUR
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	—	—	2,519,000,000 EUR	—	—	—	—	—	—	—	2,358,000,000 EUR	—	—	—	—	—
Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract]
Comprehensive income, attributable to non-controlling interests	—	—	490,000,000 EUR	—	—	—	—	—	—	—	382,000,000 EUR	—	—	—	—	—