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Provisions - Summary of Provisions by Class (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure of other provisions [line items]    
Beginning balance $ 589 $ 572
Effect of movements in foreign exchange (61) 14
Provisions made 218 163
Provisions used (117) (119)
Provisions reversed (69) (42)
Other movements 18 1
Ending balance 576 589
Restructuring [Member]    
Disclosure of other provisions [line items]    
Beginning balance 69 51
Effect of movements in foreign exchange (3) 1
Provisions made 51 31
Provisions used (54) (14)
Provisions reversed (2) 0
Other movements 0 0
Ending balance 62 69
Disputes [Member]    
Disclosure of other provisions [line items]    
Beginning balance 475 436
Effect of movements in foreign exchange (58) 16
Provisions made 158 132
Provisions used (63) (86)
Provisions reversed (68) (42)
Other movements 27 20
Ending balance 472 475
Other [Member]    
Disclosure of other provisions [line items]    
Beginning balance 44 85
Effect of movements in foreign exchange 0 (3)
Provisions made 9 0
Provisions used (1) (19)
Provisions reversed 0 0
Other movements (9) (19)
Ending balance $ 43 $ 44