STATEMENT OF CONSOLIDATED EQUITY (Unaudited) - 9 months ended Jun. 30, 2021 - USD ($) $ in Millions		Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	[1]	Common stock [Member]	Paid-in capital [Member]	Retained earnings [Member]	Retained earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	[1]	Accumulated other comprehensive income (loss) [Member]	[2]
Balance at Sep. 30, 2020		$ 3,036	$ (2)		$ 1	$ 769	$ 2,649	$ (2)		$ (383)
Accounting Standards Update [Extensible List]		us-gaap:NewAccountingPronouncementMember
COMPREHENSIVE INCOME (LOSS)
Net income (loss)		$ 176					176
Other comprehensive income		37								37
Regular dividends, $0.850 per common share		(52)					(52)
Common shares issued under stock incentive and other plans	[3]	7				7
Balance at Jun. 30, 2021		$ 3,202			$ 1	$ 776	$ 2,771			$ (346)

[1] Represents the cumulative-effect adjustment, net of tax, for the adoption of the new accounting pronouncement related to the measurement of credit losses on financial instruments.

[2] At June 30, 2021 and September 30, 2020, the after-tax accumulated other comprehensive loss of $346 million and $383 million, respectively, was each comprised of net unrealized translation losses of $344 million and $381 million, respectively, and unrecognized prior service costs as a result of certain employee benefit plan amendments of $2 million each.

[3] Common shares issued were 165,158 for the nine months ended June 30, 2021.