Statement Of Comprehensive Income [Abstract]

Norske Skog ASA - Filing #2616314

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	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)	363,000,000 NOK	0 NOK	0 NOK	363,000,000 NOK	0 NOK	1 884 NOK	1 884 NOK	0 NOK
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 remeasurements of defined benefit plans	—	—	—	14,000,000 NOK	—	11,000,000 NOK	—	—
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	—	—	—	122,000,000 NOK	—	183,000,000 NOK	—	—
Reclassification adjustments on exchange differences on translation of foreign operations, before tax	—	—	—	0 NOK	—	62,000,000 NOK	—	—
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract]
Income tax relating to remeasurements of defined benefit plans included in other comprehensive income	—	—	—	2,000,000 NOK	—	2,000,000 NOK	—	—
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract]
Income tax relating to exchange differences on translation of foreign operations included in other comprehensive income	—	—	—	0 NOK	—	4,000,000 NOK	—	—
Other comprehensive income	110,000,000 NOK	0 NOK	0 NOK	110,000,000 NOK	0 NOK	126,000,000 NOK	126,000,000 NOK	0 NOK
Comprehensive income	—	—	—	473,000,000 NOK	—	1 758 NOK	—	—