v3.25.2
Intangibles - (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
IfrsStatementLineItems [Line Items]    
Balance at beginning of year $ 10,514 $ 11,631
Additions 164 53
Disposals (4) (9)
Amortization (159) (154)
Impairment (117)  
Transfer to held for sale (Energy Assets) (904)  
Translation adjustment 1,226 (1,326)
Balance at end of year 10,720 10,195
Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Intangible assets and goodwill, cost 13,154 12,314
Accumulated depreciation, amortisation and impairment [member]    
IfrsStatementLineItems [Line Items]    
Accumulated amortization (2,434) (2,119)
Goodwill [member]    
IfrsStatementLineItems [Line Items]    
Balance at beginning of year 3,038 3,263
Impairment (117)  
Transfer to held for sale (Energy Assets) (131)  
Translation adjustment 262 (252)
Balance at end of year 3,052 3,011
Goodwill [member] | Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Intangible assets and goodwill, cost 3,052 3,011
Concession [Member]    
IfrsStatementLineItems [Line Items]    
Balance at beginning of year 6,942 7,689
Additions 149 23
Disposals (4) (4)
Amortization (137) (125)
Transfer to held for sale (Energy Assets) (770)  
Translation adjustment 895 (989)
Balance at end of year 7,075 6,594
Concession [Member] | Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Intangible assets and goodwill, cost 8,943 8,200
Concession [Member] | Accumulated depreciation, amortisation and impairment [member]    
IfrsStatementLineItems [Line Items]    
Accumulated amortization (1,868) (1,606)
Computer software [member]    
IfrsStatementLineItems [Line Items]    
Balance at beginning of year 84 104
Additions 15 30
Amortization (22) (29)
Translation adjustment 10 (12)
Balance at end of year 87 93
Computer software [member] | Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Intangible assets and goodwill, cost 653 606
Computer software [member] | Accumulated depreciation, amortisation and impairment [member]    
IfrsStatementLineItems [Line Items]    
Accumulated amortization (566) (513)
Research And Development Project And Patents [Member]    
IfrsStatementLineItems [Line Items]    
Balance at beginning of year 450 575
Disposals   (5)
Transfer to held for sale (Energy Assets) (3)  
Translation adjustment 59 (73)
Balance at end of year 506 497
Research And Development Project And Patents [Member] | Gross carrying amount [member]    
IfrsStatementLineItems [Line Items]    
Intangible assets and goodwill, cost $ 506 $ 497