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Long-term assets - E.1.3. Movement in intangible assets (Details)
$ in Millions, $ in Millions
 1 Months Ended 12 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
installment
Dec. 31, 2019
COP ($)
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Intangible assets, net   $ 7,721 [1] $ 3,403  
Additions   164 520  
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   3,403 3,195  
Change in scope   4,546    
Additions   164 520  
Amortization charge   (320) (318)  
Impairment   (1) 0  
Disposals, net   (1) (13)  
Transfers   49 (16)  
Transfers to/from assets held for sale     0  
Exchange rate movements   (121) 10  
Closing balance, net $ 3,195 7,721 3,403  
Spectrum        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Useful life measured as period of time, intangible assets other than goodwill 20 years      
Intangible assets, net     $ 388  
Number of payment installments | installment     12  
Additions     $ 33  
Total notional consideration $ 615     $ 2,450
Percentage payable in cash 55.00%   55.00% 55.00%
Percentage to be met by coverage obligations 45.00%   45.00% 45.00%
Future interest commitments, period of recognition     17 years  
Reconciliation of changes in intangible assets and goodwill [abstract]        
Additions     $ 33  
Goodwill        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Additions   0 0  
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   1,659 1,684  
Change in scope   3,257    
Additions   0 0  
Impairment   0 0  
Disposals, net   0 0  
Transfers   0 0  
Transfers to/from assets held for sale     0  
Exchange rate movements   (32) (26)  
Closing balance, net $ 1,684 4,884 1,659  
Licenses        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Additions   29 421  
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   870 468  
Change in scope   319    
Additions   29 421  
Amortization charge   (82) (71)  
Impairment   0 0  
Disposals, net   0 0  
Transfers   0 3  
Transfers to/from assets held for sale     0  
Exchange rate movements   (67) 49  
Closing balance, net 468 1,070 870  
Customer Lists        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Additions   0 0  
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   423 470  
Change in scope   91    
Additions   0 0  
Amortization charge   (56) (44)  
Impairment   0 0  
Disposals, net   0 0  
Transfers   0 0  
Transfers to/from assets held for sale     0  
Exchange rate movements   (1) (3)  
Closing balance, net 470 456 423  
IRUs        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Additions   0 0  
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   86 107  
Change in scope   6    
Additions   0 0  
Amortization charge   (14) (13)  
Impairment   0 0  
Disposals, net   0 (14)  
Transfers   2 (18)  
Transfers to/from assets held for sale     0  
Exchange rate movements   (5) (3)  
Closing balance, net 107 75 86  
Trademark        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Additions   0 0  
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   77 183  
Change in scope   848    
Additions   0 0  
Amortization charge   (67) (106)  
Impairment   0 0  
Disposals, net   0 0  
Transfers   1 0  
Transfers to/from assets held for sale     0  
Exchange rate movements   0 0  
Closing balance, net 183 858 77  
Other        
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]        
Additions   135 99  
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   289 282  
Change in scope   25    
Additions   135 99  
Amortization charge   (100) (84)  
Impairment   (1) 0  
Disposals, net   (1) 0  
Transfers   46 (1)  
Transfers to/from assets held for sale     0  
Exchange rate movements   (15) (8)  
Closing balance, net $ 282 379 289  
Cost or valuation        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   4,953    
Closing balance, net   10,322 4,953  
Cost or valuation | Goodwill        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   1,659    
Closing balance, net   4,884 1,659  
Cost or valuation | Licenses        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   1,305    
Closing balance, net   1,728 1,305  
Cost or valuation | Customer Lists        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   630    
Closing balance, net   1,251 630  
Cost or valuation | IRUs        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   196    
Closing balance, net   210 196  
Cost or valuation | Trademark        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   323    
Closing balance, net   1,189 323  
Cost or valuation | Other        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   840    
Closing balance, net   1,059 840  
Accumulated amortization and impairment        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   (1,550)    
Closing balance, net   (2,600) (1,550)  
Accumulated amortization and impairment | Goodwill        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   0    
Closing balance, net   0 0  
Accumulated amortization and impairment | Licenses        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   (435)    
Closing balance, net   (658) (435)  
Accumulated amortization and impairment | Customer Lists        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   (207)    
Closing balance, net   (795) (207)  
Accumulated amortization and impairment | IRUs        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   (111)    
Closing balance, net   (135) (111)  
Accumulated amortization and impairment | Trademark        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   (246)    
Closing balance, net   (331) (246)  
Accumulated amortization and impairment | Other        
Reconciliation of changes in intangible assets and goodwill [abstract]        
Opening balance, net   (550)    
Closing balance, net   $ (681) $ (550)  
[1] The assets and liabilities of Tigo Guatemala are 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.