Statement Of Changes In Equity [Abstract]

Bilia - Filing #5861575

Concept	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 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	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	2023-01-01 to 2023-12-31	As at 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	2023-01-01 to 2023-12-31	As at 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	As at 2022-12-31	As at 2022-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	—	4 514 SEK	257,000,000 SEK	0 SEK	—	—	4 937 SEK	—	1,000,000 SEK	—	167,000,000 SEK	4 937 SEK	—	4 841 SEK	—	—	4 408 SEK	—	9,000,000 SEK	—	0 SEK	—	257,000,000 SEK	4 841 SEK	—	167,000,000 SEK	4 887 SEK	147,000,000 SEK	0 SEK	4 316 SEK	257,000,000 SEK	4 887 SEK	167,000,000 SEK
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	— SEK	662,000,000 SEK	— SEK	—	—	—	662,000,000 SEK	0 SEK	—	662,000,000 SEK	—	— SEK	—	—	931,000,000 SEK	—	931,000,000 SEK	— SEK	—	0 SEK	—	931,000,000 SEK	—	— SEK	—	—	— SEK	—	—	—	—	—	—	—	—
Other comprehensive income	10,000,000 SEK	10,000,000 SEK	— SEK	—	—	—	— SEK	0 SEK	—	10,000,000 SEK	—	— SEK	—	—	138,000,000 SEK	—	138,000,000 SEK	138,000,000 SEK	—	0 SEK	—	— SEK	—	— SEK	—	—	— SEK	—	—	—	—	—	—	—	—
Comprehensive income	10,000,000 SEK	652,000,000 SEK	— SEK	—	—	—	662,000,000 SEK	0 SEK	—	652,000,000 SEK	—	— SEK	—	—	793,000,000 SEK	—	793,000,000 SEK	138,000,000 SEK	—	0 SEK	—	931,000,000 SEK	—	— SEK	—	—	— SEK	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	— SEK	17,000,000 SEK	— SEK	—	—	—	17,000,000 SEK	— SEK	—	17,000,000 SEK	—	— SEK	—	—	32,000,000 SEK	—	32,000,000 SEK	— SEK	—	— SEK	—	32,000,000 SEK	—	— SEK	—	—	— SEK	—	—	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	— SEK	60,000,000 SEK	— SEK	—	—	—	60,000,000 SEK	— SEK	—	60,000,000 SEK	—	— SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	— SEK	7,000,000 SEK	— SEK	—	—	—	7,000,000 SEK	— SEK	—	7,000,000 SEK	—	— SEK	—	—	2,000,000 SEK	—	2,000,000 SEK	— SEK	—	— SEK	—	2,000,000 SEK	—	— SEK	—	—	— SEK	—	—	—	—	—	—	—	—