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Deferred Tax Assets and Liabilities - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Disclosure Of Components Of Deferred Tax Assets And Liabilities [line items]    
Tax losses   $ 16,200
Net deferred tax liabilities $ 11,400 11,321
Unrecognized tax attributes amount 46,200 46,800
Deferred tax assets unrecognized on the basis of tax attributes [Member]    
Disclosure Of Components Of Deferred Tax Assets And Liabilities [line items]    
Tax losses 11,400 $ 12,000
No expiration period [member]    
Disclosure Of Components Of Deferred Tax Assets And Liabilities [line items]    
Tax losses 43,200  
Tax losses carried forward and deductible temporary differences 16,200  
Expiration period 1 [member]    
Disclosure Of Components Of Deferred Tax Assets And Liabilities [line items]    
Tax losses carried forward and deductible temporary differences $ 100  
Tax losses and deductible temporary differences expiration period 1 year  
Expiration period more than 3 [member]    
Disclosure Of Components Of Deferred Tax Assets And Liabilities [line items]    
Tax losses carried forward and deductible temporary differences $ 2,700  
Changes in tax rates or tax laws enacted or announced [member]    
Disclosure Of Components Of Deferred Tax Assets And Liabilities [line items]    
Net deferred tax liabilities $ 5,700