Other Financial Information (Other Liabilities) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Sep. 30, 2022
Other Liabilities [Abstract]
Deferred income taxes	$ 1,585	$ 1,714
Pension and postretirement liabilities	440	427
Operating lease liabilities (noncurrent)	305	312
Asbestos litigation	$ 194	$ 205

Amount of deferred tax liability attributable to taxable temporary differences.

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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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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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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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