Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net Income	$ 390	$ 62	$ 958	$ 514
Other Comprehensive Income (Loss), Net of Tax
Foreign currency translation adjustments	38	80	101	(558)
Defined benefit pension and postretirement plans	12	11	36	33
Net unrealized losses on cash flow hedges, net of reclassifications	(7)	(2)	(3)	(8)
Other Comprehensive Income (Loss), Net of Tax	43	88	134	(533)
Comprehensive Income (Loss)	$ 433	$ 150	$ 1,091	$ (19)