Borrowings Commercial Paper Activity (Details) - USD ($) $ in Millions		12 Months Ended
		Oct. 03, 2015	Sep. 27, 2014
Borrowings rollforward [Roll Forward]
Beginning Balance		$ 50	$ 0
Additions		5,296	2,650
Payments		(2,920)	(2,600)
Other Activity		4	0
Ending Balance		2,430	50
Commercial Paper with original maturities less that three months [Member]
Borrowings rollforward [Roll Forward]
Beginning Balance		50	0
Additions	[1]	2,277	50
Payments	[1]	0	0
Other Activity	[1]	3	0
Ending Balance		2,330	50
commercial paper with original maturities greater than three months [Member]
Borrowings rollforward [Roll Forward]
Beginning Balance		0	0
Additions		3,019	2,600
Payments		(2,920)	(2,600)
Other Activity		1	0
Ending Balance		$ 100	$ 0

[1] Borrowings and reductions of borrowings are reported net.