Other Financial Data (Other Liabilities) (Details) - USD ($) $ in Millions	Sep. 30, 2019	Sep. 30, 2018
Disclosure Text Block [Abstract]
Pension and postretirement liabilities	$ 775	$ 625
Deferred income taxes	327	484
Asbestos litigation	313	334
Other	556	656
Total	$ 1,971	$ 2,099

Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent.

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Aggregated carrying amounts of obligations as of the balance sheet date, excluding long-term debt, incurred as part of the normal operations that are expected to be paid after one year or beyond the normal operating cycle, if longer. Alternate captions include Total Deferred Credits and Other Liabilities.

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Carrying amount as of the balance sheet date of reserves for the costs of settling insured claims and costs incurred in the claims settlement process attributable to asbestos and environmental claims, before estimated recoveries from reinsurers.

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Amount of liability, recognized in statement of financial position, for pension, other postretirement and postemployment benefits, classified as noncurrent.

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