Statement Of Changes In Equity [Abstract]

SpareBank 1 Sørøst-Norge - Filing #2619428

Concept	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	As at 2021-01-01	2020-01-01 to 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01	As at 2020-01-01
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	318,000,000 NOK	—	297,000,000 NOK	10. 100 NOK	811,000,000 NOK	—	—	—	26,000,000 NOK	—	—	202,000,000 NOK	350,000,000 NOK	3,532,000 NOK	—	2,777,000 NOK	—	10,000,000 NOK	1,778,000 NOK	—	645,000,000 NOK	120,000,000 NOK	947,000,000 NOK	5,537,000 NOK	258,000,000 NOK	22,000,000 NOK	7,000,000 NOK	250,000,000 NOK	2,261,000 NOK	1,026,000 NOK	2,000,000 NOK	—	2,000,000 NOK	—	—	—	7,000,000 NOK	2,261,000 NOK	250,000,000 NOK	947,000,000 NOK	—	—	—	645,000,000 NOK	120,000,000 NOK	258,000,000 NOK	1,026,000 NOK	—	—	5,537,000 NOK	—	—	22,000,000 NOK	537,000,000 NOK	2,072,000 NOK	153,000,000 NOK	7,000,000 NOK	250,000,000 NOK	25,000,000 NOK	947,000,000 NOK	5,193,000 NOK	175,000,000 NOK	1,000,000 NOK	1,026,000 NOK
Changes in equity [abstract]
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	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	14,000,000 NOK	—	—	—	—	—	—	—	—	—	—	—	2,000,000 NOK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	855,000,000 NOK	—	—	—	—	—	—	—	—	—	—	—	507,000,000 NOK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	1,000,000 NOK	- NOK	—	- NOK	—	—	—	- NOK	120,000,000 NOK	- NOK	—	- NOK	- NOK	—	—	—	- NOK	—	- NOK	—	—	121,000,000 NOK	—	—	—	—	—	—	—	—	—	—	—	153,000,000 NOK	—	- NOK	- NOK	- NOK	—	—	—	—	- NOK	153,000,000 NOK	- NOK	—	—	—	—	- NOK	- NOK	—	1,000,000 NOK	- NOK	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	- NOK	- NOK	—	8,000,000 NOK	—	—	—	- NOK	- NOK	- NOK	—	- NOK	- NOK	—	—	—	- NOK	—	- NOK	—	—	8,000,000 NOK	—	—	—	—	—	—	—	—	—	—	—	1,000,000 NOK	—	- NOK	- NOK	- NOK	—	—	—	—	- NOK	- NOK	- NOK	—	—	—	—	1,000,000 NOK	- NOK	—	- NOK	- NOK	—	—	—	—	—	—	—	—	—	—	—	—