Profit Or Loss [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
Profit or loss [abstract]
Profit (loss) [abstract]
Revenue	—	—	—	—	—	—	—	—	—	—	1,995,000 NOK	1,260,000 NOK	—	—	—	—	—	—	—	—	—	—
Interest revenue calculated using effective interest method	—	—	—	—	—	—	—	—	—	—	1. 157 NOK	884,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Other income	—	—	—	—	—	—	—	—	—	—	233,000,000 NOK	165,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Employee benefits expense	—	—	—	—	—	—	—	—	—	—	529,000,000 NOK	359,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Impairment loss (reversal of impairment loss) recognised in profit or loss	—	—	—	—	—	—	—	—	—	—	79,000,000 NOK	31,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Other expenses, by nature	—	—	—	—	—	—	—	—	—	—	357,000,000 NOK	240,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Impairment loss (impairment gain and reversal of impairment loss) determined in accordance with IFRS 9	—	—	—	—	—	—	—	—	—	—	79,000,000 NOK	31,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Share of profit (loss) of associates and joint ventures accounted for using equity method	—	—	—	—	—	—	—	—	—	—	153,000,000 NOK	101,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Profit (loss) before tax	—	—	—	—	—	—	—	—	—	—	1,030,000 NOK	630,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Tax expense (income)	—	—	—	—	—	—	—	—	—	—	161,000,000 NOK	125,000,000 NOK	—	—	—	—	—	—	—	—	—	—
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
Profit (loss), attributable to [abstract]
Profit (loss), attributable to owners of parent	—	—	—	—	—	—	—	—	—	—	865,000,000 NOK	503,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Profit (loss), attributable to non-controlling interests	—	—	—	—	—	—	—	—	—	—	4,000,000 NOK	1,000,000 NOK	—	—	—	—	—	—	—	—	—	—
Earnings per share [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Earnings per share [abstract]
Earnings per share [line items]
Basic earnings per share [abstract]
Basic earnings (loss) per share	—	—	—	—	—	—	—	—	—	—	537.0000	434.0000	—	—	—	—	—	—	—	—	—	—