Business Restructuring Reserves And Programs (Details) $ in Millions	3 Months Ended			9 Months Ended		12 Months Ended
	Jun. 30, 2015 USD ($)	Sep. 30, 2014 USD ($) Position	Jun. 30, 2014 USD ($) Position	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Sep. 30, 2014 USD ($) Position	Sep. 30, 2013 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 7		$ 45	$ 32	$ 94	$ 165	$ 26
Employee Separation Costs | Fiscal 2014 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				$ 24		155
Lease Obligations | Fiscal 2014 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring Charges						$ 9
US Enhanced Separation Program | Employee Separation Costs | Fiscal 2014 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | Position						172
EMEA approved plan | Employee Separation Costs | Fiscal 2014 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		$ 39
Restructuring and Related Cost, Number of Positions Eliminated | Position		165	121
Selling, general and administrative
Restructuring Cost and Reserve [Line Items]
Depreciation, Additional Expense					$ 35
EMEA approved plan | Employee Separation Costs | Fiscal 2014 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring Charges						$ 123
US Voluntary Program [Member] | Employee Separation Costs | Fiscal 2014 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring Charges						24
US Enhanced Separation Program | Employee Separation Costs | Fiscal 2014 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring Charges						$ 10