Analysis Of Income And Expense [Abstract]

Holmen - Filing #703370

Concept	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Analysis of income and expense [abstract]
Revenue [abstract]
Revenue	—	—	—	—	—	19 479 SEK	—	—	—	16 327 SEK	—	—	—	—
Expenses by nature [abstract]
Raw materials and consumables used	—	—	—	—	—	10 110 SEK	—	—	—	8 781 SEK	—	—	—	—
Classes of employee benefits expense [abstract]
Employee benefits expense	—	—	—	—	—	2 720 SEK	—	—	—	2 411 SEK	—	—	—	—
Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract]
Depreciation and amortisation expense [abstract]
Depreciation and amortisation expense	—	—	—	—	—	1 261 SEK	—	—	—	1 172 SEK	—	—	—	—
Other expenses, by nature	—	—	—	—	—	3 814 SEK	—	—	—	3 310 SEK	—	—	—	—
Disclosure of attribution of expenses by nature to their function [text block]	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Disclosure of attribution of expenses by nature to their function [abstract]
Disclosure of attribution of expenses by nature to their function [line items]
Miscellaneous other comprehensive income [abstract]
Other comprehensive income, before tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract]
Other comprehensive income, before tax, hedges of net investments in foreign operations	—	—	—	—	—	39,000,000 SEK	—	—	—	29,000,000 SEK	—	—	—	—
Share of profit (loss) of associates and joint ventures accounted for using equity method [abstract]
Share of profit (loss) of associates and joint ventures accounted for using equity method	—	—	—	—	—	0 SEK	—	—	—	6,000,000 SEK	—	—	—	—
Share of other comprehensive income of associates and joint ventures accounted for using equity method, net of tax [abstract]
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, net of tax	- SEK	3,000,000 SEK	- SEK	- SEK	- SEK	3,000,000 SEK	- SEK	- SEK	- SEK	16,000,000 SEK	- SEK	- SEK	16,000,000 SEK	- SEK
Income tax relating to components of other comprehensive income [abstract]
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss	—	—	—	—	689,000,000 SEK	683,000,000 SEK	—	—	—	239,000,000 SEK	—	—	—	242,000,000 SEK
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss	- SEK	105,000,000 SEK	- SEK	8,000,000 SEK	—	97,000,000 SEK	6,000,000 SEK	3,000,000 SEK	- SEK	61,000,000 SEK	6,000,000 SEK	- SEK	55,000,000 SEK	—
Income tax relating to components of other comprehensive income	—	—	—	—	—	780,000,000 SEK	—	—	—	300,000,000 SEK	—	—	—	—
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	- SEK	402,000,000 SEK	- SEK	149,000,000 SEK	2 656 SEK	6 204 SEK	2 997 SEK	1 967 SEK	- SEK	2 968 SEK	165,000,000 SEK	- SEK	234,000,000 SEK	932,000,000 SEK
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	6 204 SEK	—	—	—	2 968 SEK	—	—	—	—