Statement Of Comprehensive Income [Abstract]

Swedbank A - Filing #2620192

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	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	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Statement of comprehensive income [abstract]
Profit (loss)	1,000,000 SEK	—	—	—	—	—	20 871 SEK	20 872 SEK	20 871 SEK	12 929 SEK	12 929 SEK	—	0 SEK	—	—	12 929 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 remeasurements of defined benefit plans	—	—	—	—	—	—	—	1 686 SEK	—	—	5 166 SEK	—	—	—	—	—	—	—
Other comprehensive income, before tax, change in fair value of financial liability attributable to change in credit risk of liability	—	—	—	—	—	—	—	0 SEK	—	—	6,000,000 SEK	—	—	—	—	—	—	—
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will not be reclassified to profit or loss, before tax	—	—	—	—	—	—	—	21,000,000 SEK	—	—	96,000,000 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	—	—	—	—	—	—	—	848,000,000 SEK	—	—	1 838 SEK	—	—	—	—	—	—	—
Reclassification adjustments on exchange differences on translation of foreign operations, before tax	—	—	—	—	—	—	—	—	—	—	2,000,000 SEK	—	—	—	—	—	—	—
Cash flow hedges [abstract]
Gains (losses) on cash flow hedges, before tax	—	—	—	—	—	—	—	145,000,000 SEK	—	—	358,000,000 SEK	—	—	—	—	—	—	—
Reclassification adjustments on cash flow hedges, before tax	—	—	—	—	—	—	—	143,000,000 SEK	—	—	349,000,000 SEK	—	—	—	—	—	—	—
Hedges of net investment in foreign operations [abstract]
Gains (losses) on hedges of net investments in foreign operations, before tax	—	—	—	—	—	—	—	729,000,000 SEK	—	—	1 523 SEK	—	—	—	—	—	—	—
Reclassification adjustments on hedges of net investments in foreign operations, before tax	—	—	—	—	—	—	—	—	—	—	9,000,000 SEK	—	—	—	—	—	—	—
Cost of hedging [abstract]
Change in value of foreign currency basis spreads [abstract]
Gains (losses) on change in value of foreign currency basis spreads, before tax	—	—	—	—	—	—	—	5,000,000 SEK	—	—	42,000,000 SEK	—	—	—	—	—	—	—
Share of other comprehensive income of associates and joint ventures accounted for using equity method that will be reclassified to profit or loss, before tax	—	—	—	—	—	—	—	91,000,000 SEK	—	—	84,000,000 SEK	—	—	—	—	—	—	—
Other comprehensive income, before tax	—	5,000,000 SEK	2,000,000 SEK	0 SEK	729,000,000 SEK	939,000,000 SEK	1 924 SEK	1 924 SEK	1 707 SEK	5 262 SEK	4 825 SEK	1 924 SEK	—	9,000,000 SEK	6,000,000 SEK	4 825 SEK	1 532 SEK	42,000,000 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	—	—	—	—	—	—	—	347,000,000 SEK	—	—	1 065 SEK	—	—	—	—	—	—	—
Other comprehensive income	—	—	—	—	—	—	—	1 725 SEK	—	—	3 454 SEK	—	—	—	—	—	—	—
Comprehensive income	1,000,000 SEK	4,000,000 SEK	1,000,000 SEK	0 SEK	579,000,000 SEK	939,000,000 SEK	22 596 SEK	22 597 SEK	22 231 SEK	17 127 SEK	16 383 SEK	1 924 SEK	0 SEK	7,000,000 SEK	5,000,000 SEK	16 383 SEK	1 211 SEK	29,000,000 SEK
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	—	—	22 596 SEK	—	—	16 383 SEK	—	—	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	—	1,000,000 SEK	—	—	0 SEK	—	—	—	—	—	—	—