Income Taxes Components of Provision for Income Taxes on Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Current
U.S. federal	$ 309	$ (1,025)	$ 476
U.S. state	72	(33)	26
Non-U.S.	264	213	434
Total	645	(845)	936
Deferred
U.S. federal	(382)	412	(372)
U.S. state	(43)	84	(10)
Non-U.S.	(112)	116	(357)
Total	(537)	612	(739)
Income tax provision	108	(233)	197
Income from Continuing Operations before Income Taxes, Domestic	(385)	(259)	261
Income from Continuing Operations before Income Taxes, Foreign	1,288	1,315	1,285
Income Taxes Paid, Net	(386)	377	$ 81
Income Taxes Receivable, Current	252	1,069
Taxes Payable, Current	243	$ 159
Undistributed Earnings of Foreign Subsidiaries	$ 22,000

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

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Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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