XML 378 R39.htm IDEA: XBRL DOCUMENT v3.25.1
The Millicom Group - A.2. Joint arrangements (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of joint ventures [line items]      
Statutory reserves unavailable for distribution $ 562 $ 491 $ 472
Amounts payable 170 103  
Amounts receivable 15 12  
Joint ventures where entity is venturer | Honduras joint ventures      
Disclosure of joint ventures [line items]      
Amounts payable 133 68  
Amounts receivable $ 12 9  
Honduras joint ventures      
Disclosure of joint ventures [line items]      
Proportion of ownership interest in joint venture 50.00%    
Total for all joint ventures      
Disclosure of joint ventures [line items]      
Total net assets $ 373 382  
Statutory reserves unavailable for distribution 3 3  
Honduras joint ventures      
Disclosure of joint ventures [line items]      
Total net assets (25) (35) $ (17)
Cash repatriated from joint venture $ 89 $ 86  
Proportion of ownership interest in joint venture 66.70% 66.70% 66.70%
Increase (Decrease) Joint Ventures [Roll Forward]      
Investments in joint ventures $ 576 $ 590  
Results for the year 54 42 $ 32
Dividends declared during the year (48) (54)  
Currency exchange differences (21) (2)  
Investments in joint ventures $ 561 $ 576 $ 590
Telefonica Celular S.A      
Disclosure of joint ventures [line items]      
Proportion of ownership interest in joint venture 66.70% 66.70%  
Navega S.A. de CV      
Disclosure of joint ventures [line items]      
Proportion of ownership interest in joint venture 66.70% 66.70%