Statement Of Changes In Equity [Abstract]

NP3 Fastigheter - Filing #701971

Concept	2021-01-01 to 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	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 2021-01-01	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	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 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	2020-01-01 to 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
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	4 041 SEK	—	6 743 SEK	—	6 698 SEK	2 334 SEK	46,000,000 SEK	—	324,000,000 SEK	—	—	288,000,000 SEK	4 637 SEK	2 294 SEK	2 045 SEK	4 627 SEK	11,000,000 SEK	—	2 294 SEK	11,000,000 SEK	4 627 SEK	288,000,000 SEK	—	2 045 SEK	—	4 637 SEK	—	—	—	277,000,000 SEK	1 888 SEK	4 140 SEK	8,000,000 SEK	1 968 SEK	4 132 SEK
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	—	—	—	—	—	—	—	—	—	2 020 SEK	—	—	—	—	—	—	—	660,000,000 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	—	—	—	—	—	—	- SEK	—	—	—	—	—	—	—	- SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	4,000,000 SEK	—	2 017 SEK	—	—	—	—	—	—	—	2 020 SEK	2 017 SEK	—	—	—	—	—	—	660,000,000 SEK	—	—	—	—	659,000,000 SEK	—	—	—	1,000,000 SEK	—	659,000,000 SEK	—	—	—	—	—	—
Issue of equity	- SEK	—	324,000,000 SEK	—	289,000,000 SEK	—	—	—	35,000,000 SEK	—	324,000,000 SEK	—	—	—	—	—	—	—	90,000,000 SEK	—	—	—	—	—	—	11,000,000 SEK	—	- SEK	79,000,000 SEK	90,000,000 SEK	—	—	—	—	—	—
Dividends recognised as distributions to owners	2,000,000 SEK	—	270,000,000 SEK	—	—	—	—	—	—	—	271,000,000 SEK	270,000,000 SEK	—	—	—	—	—	—	253,000,000 SEK	—	—	—	—	253,000,000 SEK	—	—	—	- SEK	—	253,000,000 SEK	—	—	—	—	—	—
Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity	33,000,000 SEK	—	- SEK	—	—	—	—	—	—	—	33,000,000 SEK	—	—	—	—	—	—	—	2,000,000 SEK	—	—	—	—	—	—	—	—	2,000,000 SEK	—	- SEK	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	- SEK	—	2,000,000 SEK	—	2,000,000 SEK	—	—	—	—	—	2,000,000 SEK	—	—	—	—	—	—	—	1,000,000 SEK	—	—	—	—	—	—	—	—	- SEK	1,000,000 SEK	1,000,000 SEK	—	—	—	—	—	—