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Intangible Assets - Reconciliation of the Changes in the Carrying Amount of Intangible Assets (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure of detailed information about intangible assets [line items]    
Beginning balance $ 55  
Ending balance 37 $ 55
Customer relationships and other [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 44  
Ending balance 30 44
Software [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 11  
Ending balance 7 11
Cost [Member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 169 167
Additions 2 5
Reclassification 1 1
Disposal (13) (1)
Currency translation effects (5) (3)
Ending balance 154 169
Cost [Member] | Customer relationships and other [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 112 112
Additions 0 0
Reclassification 0 0
Disposal 0 0
Currency translation effects (2) 0
Ending balance 110 112
Cost [Member] | Software [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance 57 55
Additions 2 5
Reclassification 1 1
Disposal (13) (1)
Currency translation effects (3) (3)
Ending balance 44 57
Accumulated Amortization [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance (114) (91)
Amortization charge (21) (23)
Disposal 13 1
Currency translation effects 5 (1)
Ending balance (117) (114)
Accumulated Amortization [member] | Customer relationships and other [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance (68) (54)
Amortization charge (14) (14)
Disposal 0 0
Currency translation effects 2 0
Ending balance (80) (68)
Accumulated Amortization [member] | Software [member]    
Disclosure of detailed information about intangible assets [line items]    
Beginning balance (46) (37)
Amortization charge (7) (9)
Disposal 13 1
Currency translation effects 3 (1)
Ending balance $ (37) $ (46)