Statement Of Comprehensive Income [Abstract]

DNB Bank ASA - Filing #2548000

Concept	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	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
Statement of comprehensive income [abstract]
Profit (loss)	—	39 479 NOK	1 312 NOK	2,000,000 NOK	38 166 NOK	—	—	769,000,000 NOK	—	33 438 NOK	82,000,000 NOK	32 587 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 revaluation of property, plant and equipment, right-of-use assets and intangible assets	—	2,000,000 NOK	—	—	—	—	—	—	—	5,000,000 NOK	—	—
Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans	—	291,000,000 NOK	—	—	291,000,000 NOK	—	—	—	—	414,000,000 NOK	—	414,000,000 NOK
Other comprehensive income, before tax, change in fair value of financial liability attributable to change in credit risk of liability	102,000,000 NOK	102,000,000 NOK	—	—	—	—	—	—	140,000,000 NOK	140,000,000 NOK	—	—
Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract]
Exchange differences on translation [abstract]
Reclassification adjustments on exchange differences on translation of foreign operations, before tax	—	- NOK	—	—	—	—	—	—	—	5 213 NOK	—	—
Other comprehensive income, before tax, exchange differences on translation of foreign operations	—	4 950 NOK	—	—	—	4 950 NOK	3 275 NOK	—	—	3 275 NOK	—	—
Hedges of net investment in foreign operations [abstract]
Reclassification adjustments on hedges of net investments in foreign operations, before tax	—	- NOK	—	—	—	—	—	—	—	5 137 NOK	—	—
Other comprehensive income, before tax, hedges of net investments in foreign operations	—	3 845 NOK	—	—	—	3 845 NOK	2 878 NOK	—	—	2 878 NOK	—	—
Financial assets measured at fair value through other comprehensive income [abstract]
Other comprehensive income, before tax, financial assets measured at fair value through other comprehensive income	—	147,000,000 NOK	—	—	147,000,000 NOK	—	—	—	—	704,000,000 NOK	—	704,000,000 NOK
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss [abstract]
Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss	—	99,000,000 NOK	—	—	—	—	—	—	—	131,000,000 NOK	—	—
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss [abstract]
Income tax relating to hedges of net investments in foreign operations included in other comprehensive income	—	- NOK	—	—	—	—	—	—	—	1 284 NOK	—	—
Income tax relating to components of other comprehensive income that will be reclassified to profit or loss	—	998,000,000 NOK	—	—	—	—	—	—	—	900,000,000 NOK	—	—
Other comprehensive income	—	1 663 NOK	—	—	—	—	—	—	—	340,000,000 NOK	—	—
Comprehensive income	76,000,000 NOK	41 142 NOK	1 312 NOK	2,000,000 NOK	37 839 NOK	2 066 NOK	243,000,000 NOK	769,000,000 NOK	105,000,000 NOK	33 098 NOK	82,000,000 NOK	32 385 NOK