Statement Of Changes In Equity [Abstract]

Collector Bank - Filing #690417

Concept	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	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	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	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	7 070 SEK	—	—	500,000,000 SEK	—	6 418 SEK	149,000,000 SEK	2,000,000 SEK	6 570 SEK	5,000,000 SEK	—	—	5 266 SEK	5,000,000 SEK	500,000,000 SEK	—	5 916 SEK	—	—	5 416 SEK	4,000,000 SEK	149,000,000 SEK	—	—	4 553 SEK	5,000,000 SEK	149,000,000 SEK	4 703 SEK	4,000,000 SEK	500,000,000 SEK	5 203 SEK
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	1 141 SEK	1 097 SEK	—	44,000,000 SEK	—	—	—	—	—	1 097 SEK	—	—	—	—	713,000,000 SEK	—	40,000,000 SEK	—	—	—	—	753,000,000 SEK	713,000,000 SEK	—	—	—	—	—	—	—
Other comprehensive income	—	2,000,000 SEK	—	—	—	—	—	—	—	—	2,000,000 SEK	2,000,000 SEK	—	—	—	0 SEK	—	—	0 SEK	—	—	—	0 SEK	—	—	—	—	—	—	—	—
Comprehensive income	—	1 143 SEK	1 097 SEK	—	44,000,000 SEK	—	—	—	—	—	1 099 SEK	2,000,000 SEK	—	—	—	713,000,000 SEK	—	40,000,000 SEK	0 SEK	—	—	—	753,000,000 SEK	713,000,000 SEK	—	—	—	—	—	—	—
Increase (decrease) in equity	—	11,000,000 SEK	55,000,000 SEK	—	44,000,000 SEK	—	—	—	—	—	55,000,000 SEK	—	—	—	—	—	—	40,000,000 SEK	—	—	—	—	40,000,000 SEK	—	—	—	—	—	—	—	—