Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net Income	$ 451	$ 594	$ 1,071	$ 446
Other Comprehensive (Loss) Income, Net of Tax
Foreign currency translation adjustments	(68)	(214)	(27)	(122)
Defined benefit pension and postretirement plans	12	16	40	(57)
Cash flow hedges	(3)	1	(2)	0
Other Comprehensive (Loss) Income, Net of Tax	(58)	(197)	12	(179)
Comprehensive Income	$ 393	$ 397	$ 1,082	$ 267

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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