Statement Of Comprehensive Income [Abstract]

SpareBank 1 Sørøst-Norge - Filing #2619428

Concept	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Statement of comprehensive income [abstract]
Profit (loss)	4,000,000 NOK	175,000,000 NOK	80,000,000 NOK	- NOK	297,000,000 NOK	196,000,000 NOK	115,000,000 NOK	- NOK	3,000,000 NOK	- NOK	869,000,000 NOK	505,000,000 NOK	- NOK	- NOK	189,000,000 NOK	6,000,000 NOK	120,000,000 NOK	109,000,000 NOK	92,000,000 NOK	- NOK	1,000,000 NOK	- NOK
Other comprehensive income [abstract]
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	—	—	—	—	—	—	—	—	—	—	1,000,000 NOK	3,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	—	—	—	—	—	—	14,000,000 NOK	2,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	—	—	—	—	—	—	—	—	—	855,000,000 NOK	507,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	—	—	—	—	—	851,000,000 NOK	505,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	—	—	—	—	4,000,000 NOK	1,000,000 NOK	—	—	—	—	—	—	—	—	—	—