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Financial Instruments and Fair Value Measurements - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2022
Dec. 31, 2020
Mar. 31, 2022
Cost of Sales      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Asset impairment charge $ 54 $ 34 $ 54
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
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