Statement Of Financial Position [Abstract]

Investor AB - Filing #702850

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 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	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 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31	As at 2019-12-31
Statement of financial position [abstract]
Assets [abstract]
Investment property	—	—	—	7 317 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	4 777 SEK	—	—	—	—	—	—	—	—	—	—
Goodwill	—	—	—	55 437 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	46 686 SEK	—	—	—	—	—	—	—	—	—	—
Intangible assets other than goodwill	—	—	—	33 168 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	28 395 SEK	—	—	—	—	—	—	—	—	—	—
Deferred tax assets	—	—	—	891,000,000 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	91 1 SEK	—	—	—	—	—	—	—	—	—	—
Cash and cash equivalents	—	—	—	18 330 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	19 670 SEK	—	—	—	—	—	19 231 SEK	—	—	—	—
Assets	—	—	—	795 542 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	5 71 0 47 SEK	—	—	—	—	—	—	—	—	—	—
Equity and liabilities [abstract]
Equity [abstract]
Issued capital	—	—	—	4 795 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	4 795 SEK	—	—	—	—	—	—	—	—	—	—
Retained earnings	—	—	—	657 379 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	438 534 SEK	—	—	—	—	—	—	—	—	—	—
Share premium	—	—	—	13 533 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	13 533 SEK	—	—	—	—	—	—	—	—	—	—
Other reserves	—	—	—	6 906 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	4 974 SEK	—	—	—	—	—	—	—	—	—	—
Equity attributable to owners of parent	—	—	—	682 614 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	461 837 SEK	—	—	—	—	—	—	—	—	—	—
Non-controlling interests	—	—	—	8 91 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	939,000,000 SEK	—	—	—	—	—	—	—	—	—	—
Equity	657 379 SEK	972,000,000 SEK	153,000,000 SEK	683 505 SEK	66,000,000 SEK	682 614 SEK	13 533 SEK	8 91 SEK	5 847 SEK	4 795 SEK	438 534 SEK	2 616 SEK	1 3 3 SEK	939,000,000 SEK	16 5 SEK	461 837 SEK	4 795 SEK	2 327 SEK	13 533 SEK	4 62 7 75 SEK	2 692 SEK	420 681 SEK	242,000,000 SEK	6 929 SEK	13 533 SEK	420 923 SEK	392 566 SEK	1 1 SEK	4 795 SEK	17 7 SEK
Liabilities [abstract]
Deferred tax liabilities	—	—	—	6 086 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	6 096 SEK	—	—	—	—	—	—	—	—	—	—
Liabilities	—	—	—	112 036 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	108 271 SEK	—	—	—	—	—	—	—	—	—	—
Equity and liabilities	—	—	—	795 542 SEK	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	57 1 0 47 SEK	—	—	—	—	—	—	—	—	—	—