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Fair Value Measurement - Summary of Financial Instrument Measured on a Basis Other Than Fair Value (Detail) - USD ($)
$ in Millions
Sep. 30, 2024
Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total [1] $ 18,701 $ 18,865
Senior Notes And Sustainability Linked Senior Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total [1] 16,129 17,214
Senior Notes and Convertible Senior Debentures Included Under Short-Term Debt [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total [1] $ 2,572 $ 1,651
[1] The fair value was estimated based on quoted market prices.