Statement Of Changes In Equity [Abstract]

Bufab AB - Filing #5861823

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	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
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	3 095 SEK	1,000,000 SEK	—	—	315,000,000 SEK	—	4 88 SEK	3 899 SEK	—	3 418 SEK	—	2 741 SEK	188,000,000 SEK	—	—	1,000,000 SEK	—	4 88 SEK	3 036 SEK	202,000,000 SEK	2 345 SEK	1,000,000 SEK	48 8 SEK
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	— SEK	— SEK	—	—	5 51 SEK	5 51 SEK	—	— SEK	—	—	5 74 SEK	—	— SEK	—	—	5 74 SEK	— SEK	—	— SEK	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	—	12 4 SEK	—	—	—	—	15,000,000 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	12 7 SEK	— SEK	—	—	548,000,000 SEK	675,000,000 SEK	—	— SEK	—	—	559,000,000 SEK	—	14,000,000 SEK	—	—	573,000,000 SEK	— SEK	—	— SEK	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	— SEK	— SEK	—	—	8,000,000 SEK	8,000,000 SEK	—	— SEK	—	—	19,000,000 SEK	—	— SEK	—	—	19,000,000 SEK	— SEK	—	— SEK	—	—	—	—	—	—