Statement Of Comprehensive Income [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
Statement of comprehensive income [abstract]
Profit (loss)	- SEK	- SEK	- SEK	- SEK	- SEK	3 004 SEK	3 004 SEK	1 979 SEK	- SEK	1 979 SEK	- SEK	- SEK	- SEK	- SEK
Other comprehensive income [abstract]
Components of other comprehensive income that will not be reclassified to profit or loss, before tax [abstract]
Other comprehensive income, before tax, gains (losses) on revaluation of property, plant and equipment, right-of-use assets and intangible assets	- SEK	- SEK	- SEK	- SEK	3 345 SEK	3 345 SEK	- SEK	- SEK	- SEK	1 173 SEK	- SEK	- SEK	- SEK	1 173 SEK
Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans	- SEK	- SEK	- SEK	- SEK	- SEK	12,000,000 SEK	12,000,000 SEK	15,000,000 SEK	- SEK	15,000,000 SEK	- SEK	- SEK	- SEK	- SEK
Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract]
Exchange differences on translation [abstract]
Gains (losses) on exchange differences on translation of foreign operations, before tax	- SEK	- SEK	- SEK	180,000,000 SEK	- SEK	180,000,000 SEK	- SEK	- SEK	- SEK	187,000,000 SEK	187,000,000 SEK	- SEK	- SEK	- SEK
Cash flow hedges [abstract]
Gains (losses) on cash flow hedges, before tax	—	—	—	—	—	182,000,000 SEK	—	—	—	380,000,000 SEK	—	—	—	—
Reclassification adjustments on cash flow hedges, before tax	—	—	—	—	—	349,000,000 SEK	—	—	—	105,000,000 SEK	—	—	—	—
Amounts removed from equity and included in carrying amount of non-financial asset (liability) whose acquisition or incurrence was hedged highly probable forecast transaction, before tax	—	—	—	—	—	27,000,000 SEK	—	—	—	2,000,000 SEK	—	—	—	—
Hedges of net investment in foreign operations [abstract]
Gains (losses) on hedges of net investments in foreign operations, before tax	- SEK	- SEK	- SEK	39,000,000 SEK	- SEK	39,000,000 SEK	- SEK	- SEK	- SEK	29,000,000 SEK	29,000,000 SEK	- SEK	- SEK	- SEK
Other comprehensive income, before tax, hedges of net investments in foreign operations	—	—	—	—	—	39,000,000 SEK	—	—	—	29,000,000 SEK	—	—	—	—
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [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 [abstract]
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	—
Other comprehensive income	- SEK	402,000,000 SEK	- SEK	149,000,000 SEK	2 656 SEK	3 201 SEK	6,000,000 SEK	12,000,000 SEK	- SEK	989,000,000 SEK	165,000,000 SEK	- SEK	234,000,000 SEK	932,000,000 SEK
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 [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	6 204 SEK	—	—	—	2 968 SEK	—	—	—	—