Statement Of Changes In Equity [Abstract]

Nyfosa - Filing #679487

Concept	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	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	As at 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	As at 2023-01-01	As at 2023-01-01	As at 2023-01-01	As at 2023-01-01	As at 2023-01-01	As at 2023-01-01	As at 2023-01-01	As at 2023-01-01	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 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	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01	As at 2022-01-01
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	16 921 SEK	—	12 015 SEK	—	—	38,000,000 SEK	—	—	96,000,000 SEK	255,000,000 SEK	75 8 SEK	—	16 88 3 SEK	3 760 SEK	13 4 8 5 SEK	275,000,000 SEK	76 3 SEK	3 760 SEK	39,000,000 SEK	18 378 SEK	96,000,000 SEK	18 416 SEK	18 416 SEK	—	—	—	—	—	—	39,000,000 SEK	13 48 5 SEK	96,000,000 SEK	275,000,000 SEK	18 378 SEK	763,000,000 SEK	3 760 SEK	—	—	8,000,000 SEK	17 23 6 SEK	12 573 SEK	96,000,000 SEK	32,000,000 SEK	17 2 6 8 SEK	800,000,000 SEK	3 760 SEK
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	63 9 SEK	– SEK	—	639,000,000 SEK	—	1,000,000 SEK	639,000,000 SEK	—	– SEK	– SEK	—	—	—	– SEK	—	—	—	—	—	—	—	—	—	—	—	– SEK	1 694 SEK	1 689 SEK	5,000,000 SEK	– SEK	– SEK	—	—	—	—	—	—	—	1 689 SEK	– SEK	—	—	—	—	—	—	—	—
Other comprehensive income	1 9 SEK	– SEK	—	19,000,000 SEK	—	0 SEK	– SEK	—	1 9 SEK	– SEK	—	—	—	– SEK	—	—	—	—	—	—	—	—	—	—	—	– SEK	269,000,000 SEK	– SEK	3,000,000 SEK	– SEK	– SEK	—	—	—	—	—	—	—	266,000,000 SEK	26 6 SEK	—	—	—	—	—	—	—	—
Comprehensive income	658,000,000 SEK	– SEK	—	657,000,000 SEK	—	0 SEK	639,000,000 SEK	—	19,000,000 SEK	– SEK	—	—	—	– SEK	—	—	—	—	—	—	—	—	—	—	—	– SEK	1 962 SEK	1 689 SEK	7,000,000 SEK	– SEK	– SEK	—	—	—	—	—	—	—	1 955 SEK	266,000,000 SEK	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	7 6 4 SEK	– SEK	—	76 4 SEK	—	– SEK	7 6 4 SEK	—	– SEK	– SEK	—	—	—	– SEK	—	—	—	—	—	—	—	—	—	—	—	– SEK	7 2 6 SEK	7 2 6 SEK	– SEK	– SEK	– SEK	—	—	—	—	—	—	—	7 2 6 SEK	– SEK	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	1,000,000 SEK	– SEK	—	0 SEK	—	1,000,000 SEK	0 SEK	—	– SEK	– SEK	—	—	—	– SEK	—	—	—	—	—	—	—	—	—	—	—	– SEK	0 SEK	0 SEK	0 SEK	– SEK	– SEK	—	—	—	—	—	—	—	0 SEK	– SEK	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	2,000,000 SEK	– SEK	—	2,000,000 SEK	—	– SEK	2,000,000 SEK	—	– SEK	– SEK	—	—	—	– SEK	—	—	—	—	—	—	—	—	—	—	—	– SEK	4,000,000 SEK	4,000,000 SEK	– SEK	– SEK	– SEK	—	—	—	—	—	—	—	4,000,000 SEK	– SEK	—	—	—	—	—	—	—	—