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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

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