Borrowings Interest Income/(Expense) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Interest expense	$ (62)	$ (74)	$ (197)	$ (222)
Interest and investment income	50	24	135	283
Interest income/(expense), net	$ (12)	$ (50)	$ (62)	$ 61