Statement Of Comprehensive Income [Abstract]

Telia Company - Filing #679726

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	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	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)	897,000,000 SEK	303,000,000 SEK	594,000,000 SEK	303,000,000 SEK	- SEK	- SEK	- SEK	- SEK	- SEK	- SEK	- SEK	- SEK	14 165 SEK	14 638 SEK	474,000,000 SEK	- SEK	- SEK	- SEK	- SEK	14 638 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) from investments in equity instruments	310,000,000 SEK	—	—	—	—	—	—	—	—	—	—	—	52,000,000 SEK	—	—	—	—	—	—	—	—	—
Other comprehensive income, before tax, gains (losses) on remeasurements of defined benefit plans	2 253 SEK	—	—	—	—	—	—	—	—	—	—	—	4 759 SEK	—	—	—	—	—	—	—	—	—
Components of other comprehensive income that will be reclassified to profit or loss, before tax [abstract]
Cash flow hedges [abstract]
Gains (losses) on cash flow hedges, before tax	100,000,000 SEK	—	—	—	—	—	—	—	—	—	—	—	267,000,000 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	102,000,000 SEK	—	—	—	—	—	—	—	—	—	—	—	155,000,000 SEK	—	—	—	—	—	—	—	—	—
Financial assets measured at fair value through other comprehensive income [abstract]
Gains (losses) on financial assets measured at fair value through other comprehensive income, before tax	2,000,000 SEK	—	—	—	—	—	—	—	—	—	—	—	7,000,000 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	461,000,000 SEK	—	—	—	—	—	—	—	—	—	—	—	964,000,000 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	47,000,000 SEK	—	—	—	—	—	—	—	—	—	—	—	317,000,000 SEK	—	—	—	—	—	—	—	—	—
Other comprehensive income	3 280 SEK	3 231 SEK	50,000,000 SEK	1 792 SEK	1 590 SEK	- SEK	81,000,000 SEK	311,000,000 SEK	- SEK	- SEK	79,000,000 SEK	- SEK	7 022 SEK	3 794 SEK	391,000,000 SEK	212,000,000 SEK	58,000,000 SEK	123,000,000 SEK	- SEK	6 631 SEK	2 559 SEK	- SEK
Comprehensive income	2 383 SEK	2 927 SEK	544,000,000 SEK	1 489 SEK	1 590 SEK	- SEK	81,000,000 SEK	311,000,000 SEK	- SEK	- SEK	79,000,000 SEK	—	7 142 SEK	10 844 SEK	865,000,000 SEK	212,000,000 SEK	58,000,000 SEK	123,000,000 SEK	—	8 007 SEK	2 559 SEK	—
Comprehensive income attributable to [abstract]
Comprehensive income, attributable to owners of parent	2 927 SEK	—	—	—	—	—	—	—	—	—	—	—	8 007 SEK	—	—	—	—	—	—	—	—	—
Comprehensive income, attributable to non-controlling interests	544,000,000 SEK	—	—	—	—	—	—	—	—	—	—	—	865,000,000 SEK	—	—	—	—	—	—	—	—	—