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Financial Instruments and Fair Value Measurements - Additional Information (Detail) - USD ($)
$ in Millions
 3 Months Ended
Dec. 31, 2023
Sep. 30, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Supplier Finance Program, Obligation $ 105 $ 94
Minimum    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Maturity period of short-term investments at the time of purchase 3 months  
Payment terms of supplier finance programs (in days) 90 days  
Maximum    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Maturity period of short-term investments at the time of purchase 1 year  
Payment terms of supplier finance programs (in days) 150 days