Statement Of Financial Position [Abstract]

NP3 Fastigheter - Filing #701971

Concept	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 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 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 2020-01-01	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 financial position [abstract]
Assets [abstract]
Investment property	—	17 335 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	12 582 SEK	—	—	—	—	—	—
Investments in subsidiaries, joint ventures and associates reported in separate financial statements	—	724,000,000 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	456,000,000 SEK	—	—	—	—	—	—
Cash and cash equivalents	—	269,000,000 SEK	—	—	—	—	—	104,000,000 SEK	—	—	—	—	—	—	—	—	—	104,000,000 SEK	—	—	192,000,000 SEK	—	—	—
Assets	—	18 718 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	13 352 SEK	—	—	—	—	—	—
Equity and liabilities [abstract]
Equity [abstract]
Equity	4 041 SEK	6 743 SEK	6 698 SEK	46,000,000 SEK	2 334 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
Liabilities [abstract]
Deferred tax liabilities	—	969,000,000 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	568,000,000 SEK	—	—	—	—	—	—
Equity and liabilities	—	18 718 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	13 352 SEK	—	—	—	—	—	—