Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net Income	$ 1,779	$ 2,092	$ 874
Other Comprehensive Income (Loss), Net of Tax
Foreign currency translation adjustments	305	124	(161)
Defined benefit pension and postretirement plans	210	255	(35)
Cash flow hedges	85	81	(67)
Other Comprehensive Income (Loss), Net of Tax	600	460	(265)
Comprehensive Income	$ 2,379	$ 2,552	$ 609