Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net Income	$ 62	$ 326	$ 514	$ 884
Other Comprehensive Income (Loss), Net of Tax
Foreign currency translation adjustments	80	(11)	(558)	3
Defined benefit pension and postretirement plans	11	8	33	51
Net unrealized (losses) gains on cash flow hedges, net of reclassifications	(2)	1	(8)	4
Other Comprehensive Income (Loss), Net of Tax	88	(2)	(533)	58
Comprehensive Income	$ 150	$ 324	$ (19)	$ 943