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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, 2023
Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total $ 17,604 $ 18,769
Senior Notes And Sustainability Linked Senior Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total 16,629 16,694
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 $ 975 $ 2,075