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Contingencies - Additional Information (Detail) - USD ($)
9 Months Ended
Jun. 30, 2023
Sep. 30, 2022
Maximum [Member]    
Loss Contingencies [Line Items]    
Charges related to value added tax matters $ 41,000,000  
Minimum [Member]    
Loss Contingencies [Line Items]    
Charges related to value added tax matters 0  
Respirator Liabilities [Member]    
Loss Contingencies [Line Items]    
Respirator reserve $ 38,000,000 $ 39,000,000