Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net Income	$ 1,003	$ 278
Other Comprehensive Income, Net of Tax
Foreign currency translation adjustments	64	26
Defined benefit pension and postretirement plans	42	17
Cash flow hedges	28	39
Other Comprehensive Income, Net of Tax	134	82
Comprehensive Income	$ 1,138	$ 359