v3.26.1
Intangibles - (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
IfrsStatementLineItems [Line Items]    
Balance at beginning of year $ 10,514 $ 11,631
Additions 394 519
Disposals (4) (15)
Amortization (337) (324)
Transfer to held for sale   1,085
Translation adjustment 1,142 (2,382)
Impairment (1,852)  
Transfer to held for sale (904)  
Balance at end of year 8,953 10,514
Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Cost 11,530 12,595
Accumulated depreciation, amortisation and impairment [member]    
IfrsStatementLineItems [Line Items]    
Accumulated amortization (2,577) (2,081)
Goodwill [member]    
IfrsStatementLineItems [Line Items]    
Balance at beginning of year 3,038 3,263
Transfer to held for sale   257
Translation adjustment 242 (482)
Impairment (1,852)  
Transfer to held for sale (131)  
Balance at end of year 1,297 3,038
Goodwill [member] | Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Cost 1,297 3,038
Concession [Member]    
IfrsStatementLineItems [Line Items]    
Balance at beginning of year 6,942 7,689
Additions 363 465
Disposals (4) (10)
Amortization (276) (270)
Transfer to held for sale   824
Translation adjustment 836 (1,756)
Transfer to held for sale (770)  
Balance at end of year 7,091 6,942
Concession [Member] | Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Cost 9,068 8,528
Concession [Member] | Accumulated depreciation, amortisation and impairment [member]    
IfrsStatementLineItems [Line Items]    
Accumulated amortization (1,977) (1,586)
Computer software [member]    
IfrsStatementLineItems [Line Items]    
Balance at beginning of year 84 104
Additions 31 54
Amortization (44) (54)
Translation adjustment 9 (20)
Balance at end of year 80 84
Computer software [member] | Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Cost 663 579
Computer software [member] | Accumulated depreciation, amortisation and impairment [member]    
IfrsStatementLineItems [Line Items]    
Accumulated amortization (583) (495)
Research And Development Project And Patents [Member]    
IfrsStatementLineItems [Line Items]    
Balance at beginning of year 450 575
Disposals   (5)
Transfer to held for sale   4
Translation adjustment   (124)
Transfer to held for sale (3)  
Transfers (445)  
Balance at end of year 2 450
Research And Development Project And Patents [Member] | Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Cost 2 450
Patent [Member]    
IfrsStatementLineItems [Line Items]    
Balance at beginning of year  
Amortization (17)  
Translation adjustment 55  
Transfers 445  
Balance at end of year 483  
Patent [Member] | Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Cost 500  
Patent [Member] | Accumulated depreciation, amortisation and impairment [member]    
IfrsStatementLineItems [Line Items]    
Accumulated amortization $ (17)