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Intangible Assets - Summary of Changes in Intangible Assets (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance $ 424 $ 462 $ 490
Ending balance 407 424 462
Cost [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 1,496 1,490 1,463
Increases 33 29 32
Translation effect (60) (32) (3)
Adjustment for inflation [1] 36 35 19
Decreases, reclassifications and other movements 0 (26) (21)
Ending balance 1,505 1,496 1,490
Accumulated amortization [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 1,072 1,028 973
Increases 37 43 51
Translation effect (29) (10) (1)
Adjustment for inflation [1] 18 11 5
Ending balance 1,098 1,072 1,028
Service concessions [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 258 260 272
Ending balance 261 258 260
Service concessions [member] | Cost [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 933 908 883
Increases 31 25 25
Ending balance 964 933 908
Service concessions [member] | Accumulated amortization [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 675 648 611
Increases 28 27 37
Ending balance 703 675 648
Exploration rights [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 110 136 160
Ending balance 110 110 136
Exploration rights [member] | Cost [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 110 136 160
Decreases, reclassifications and other movements   (26) (24)
Ending balance 110 110 136
Other intangibles [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 56 66 58
Ending balance 36 56 66
Other intangibles [member] | Cost [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 453 446 420
Increases 2 4 7
Translation effect (60) (32) (3)
Adjustment for inflation [1] 36 35 19
Decreases, reclassifications and other movements     3
Ending balance 431 453 446
Other intangibles [member] | Accumulated amortization [member]      
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]      
Beginning balance 397 380 362
Increases 9 16 14
Translation effect (29) (10) (1)
Adjustment for inflation [1] 18 11 5
Ending balance $ 395 $ 397 $ 380
[1] Corresponds to adjustment for inflation of opening balances of intangible assets of subsidiaries with the peso as functional currency which was charged to “Other comprehensive income” in the statement of comprehensive income.