Statement Of Changes In Equity [Abstract]

Fabege - Filing #679987

Concept	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Increase (decrease) through transactions with owners, equity	755,000,000 SEK	0 SEK	755,000,000 SEK	755,000,000 SEK	2 061 SEK	2,061,000,000 SEK	2 061 SEK
Purchase of treasury shares	— SEK	—	— SEK	— SEK	796,000,000 SEK	796,000,000 SEK	796,000,000 SEK