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Long-term Debt - Additional Information (Detail) - USD ($)
Mar. 31, 2024
Dec. 31, 2023
Debt Instrument [Line Items]    
Long-term debt, fair value $ 10,000,000,000.0 $ 10,200,000,000
Committed credit facility agreement aggregated 5,000,000,000  
Committed credit facility agreement, unused borrowing capacity 4,700,000,000  
Short-term borrowings and current portion of long-term debt 1,430,000,000 1,123,000,000
Commercial paper programs mature in February 2027    
Debt Instrument [Line Items]    
Committed credit facility agreement aggregated 2,000,000,000  
Commercial paper programs mature in December 2028    
Debt Instrument [Line Items]    
Committed credit facility agreement aggregated 3,000,000,000  
Commercial paper borrowings    
Debt Instrument [Line Items]    
Long-term debt   $ 0
Short-term borrowings and current portion of long-term debt $ 345,000,000