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Income Taxes (Schedule Of Deferred Income Tax Assets And Liabilities) (Details) - USD ($) $ in Millions | Sep. 30, 2021 | Sep. 30, 2020
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Income Tax Disclosure [Abstract] |  |
Net operating losses, capital losses and tax credits | $ 316 | $ 487
Accrued liabilities | 216 | 219
Postretirement and postemployment benefits | 29 | 33
Employee compensation and benefits | 149 | 119
Pensions | 0 | 69
Other | 128 | 137
Total deferred tax assets | 838 | 1,064
Valuation allowances | (236) | (293)
Intangibles | (787) | (652)
Pensions | (107) | 0
Property, plant and equipment | (212) | (212)
Undistributed non-U.S. earnings | (38) | (36)
Other | (54) | (33)
Total deferred tax liabilities | (1,198) | (933)
Net deferred income tax liability | $ (596) | $ (162)

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