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Financial Risk Management - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Provision for doubtful trade receivables $ 61    
Provision for other doubtful receivables 26    
Guarantees granted by third parties $ 1,013 $ 945 $ 873
Exchange rate to convert pesos to U.S. dollars variation 28.00%    
Percentage of variable rate financial loans to total loans 6.00%    
Credit risk other financial assets national government and direct agencies accounts [member]      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Credit and investments with the National Government, direct agencies and companies with government participation $ 732    
Percentage of credit and investments with the National Government, direct agencies and companies with government participation 22.00%    
Interest rate risk [member] | BADLAR [member]      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Loans accrued $ 1    
Variable interest rate 10.00%    
Interest rate risk [member] | SOFR [Member]      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Loans accrued $ 521    
Interest rate risk [member] | SOFR [Member] | Bottom of range [member]      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Variable interest rate 0.90%    
Interest rate risk [member] | SOFR [Member] | Top of range [member]      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Variable interest rate 8.50%    
Liquidity risk [member]      
Disclosure of nature and extent of risks arising from financial instruments [line items]      
Amount available for liquidity $ 1,118    
Cash 304    
Other liquid financial assets 814    
Other investments freely available $ 390