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Other Financial Information (Accrued Expenses) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Sep. 30, 2022
Accrued Liabilities and Other Liabilities [Abstract] |  |
Customer advances (contract liabilities) | $ 901 | $ 751
Employee compensation | $ 372 | 523
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Accrued expenses |
Operating lease liabilities (current) | $ 131 | 128
Product warranty | 89 | 84
Accrued Income Taxes, Current | 1,080 | $ 125
InSinkErator [Member] |  |
Discontinued Operation, Tax Effect of Discontinued Operation | 660 |
Climate Technologies (excluding Therm-O-Disc) |  |
Discontinued Operation, Tax Effect of Discontinued Operation | $ 275 |

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