Borrowing Activity (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Mar. 29, 2014		Sep. 28, 2013
Borrowings [Roll Forward]
Borrowings, balance	$ 15,604		$ 14,288
Additions	2,454
Payments	(1,103)
Other Activity	(35)
Commercial paper borrowings
Borrowings [Roll Forward]
Borrowings, balance	2,316		0
Additions	2,316
Payments	0
Other Activity	0
U.S. medium-term notes
Borrowings [Roll Forward]
Borrowings, balance	12,160		13,155
Additions	0
Payments	(1,000)
Other Activity	5
European medium-term notes and other foreign currency denominated borrowings
Borrowings [Roll Forward]
Borrowings, balance	554		509
Additions	138
Payments	(79)
Other Activity	(14)
HKDL borrowings
Borrowings [Roll Forward]
Borrowings, balance	256		275
Additions	0
Payments	(12)
Other Activity	(7)
Other
Borrowings [Roll Forward]
Borrowings, balance	318		349
Additions	0
Payments	(12)
Other Activity	$ (19)	[1]

[1] Primarily market value adjustments for debt with qualifying hedges and foreign currency translation adjustments.