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Performance B.5. Other non-operating (expenses) income, net (Details) - USD ($)
$ in Millions
 1 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Nov. 12, 2021
Disclosure of fair value measurement of assets [line items]            
Change in fair value of derivatives     $ 12 $ 3 $ (11)  
Change in value of put option liability     (1) (31) 5  
Exchange gains (losses), net     (84) (42) (69)  
Other     1 2 2  
Total other non-operating (expenses) income, net     (78) [1] (49) [2] (107) [2]  
Proceeds from disposal of equity investments, net of costs     0 163 [3] 197 [3]  
Gain (loss) on disposal of equity investments     0 (15) 25  
Guatemala joint ventures            
Disclosure of fair value measurement of assets [line items]            
Percentage of controlling interest acquired           45.00%
Equity Investment In Jumia            
Disclosure of fair value measurement of assets [line items]            
Change in fair value in investment     (6) 0 (18)  
Proceeds from disposal of equity investments, net of costs   $ 29        
Gain (loss) on disposal of equity investments   $ 15        
Equity Investment In HTA            
Disclosure of fair value measurement of assets [line items]            
Change in fair value in investment     $ 0 $ 18 $ (16)  
Proceeds from disposal of equity investments, net of costs $ 163          
Gain (loss) on disposal of equity investments $ (15)          
[1] Tigo Guatemala is fully consolidated since the acquisition of the remaining 45% shareholding on November 12, 2021. See note A.1.2. for further details. As a result, numbers might not be directly comparable with previous years' figures.
[2] Re-presented for discontinued operations (see note A.4.)
[3] Re-presented for discontinued operations (see note A.4.).