Goodwill and Intangible Assets - Changes in the Carrying Amount of Goodwill by Segment (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Jun. 24, 2016	Sep. 25, 2015
Changes in the carrying amount of goodwill, by segment ($ in millions):
Gross goodwill, beginning balance	$ 5,964	$ 5,849
Accumulated impairment, beginning balance	(1,761)	(1,761)
Carrying amount of goodwill, beginning balance	4,203	4,088
Acquisitions / purchase accounting adjustments	239	347
Currency translation	(24)	(232)
Gross goodwill, ending balance	6,179	5,964
Accumulated impairment, ending balance	(1,761)	(1,761)
Carrying amount of goodwill, ending balance	4,418	4,203
NA Integrated Solutions & Services
Changes in the carrying amount of goodwill, by segment ($ in millions):
Gross goodwill, beginning balance	2,096	2,102
Accumulated impairment, beginning balance	(126)	(126)
Carrying amount of goodwill, beginning balance	1,970	1,976
Acquisitions / purchase accounting adjustments	73	23
Currency translation	5	(29)
Gross goodwill, ending balance	2,174	2,096
Accumulated impairment, ending balance	(126)	(126)
Carrying amount of goodwill, ending balance	2,048	1,970
ROW Integrated Solutions & Services
Changes in the carrying amount of goodwill, by segment ($ in millions):
Gross goodwill, beginning balance	1,821	1,938
Accumulated impairment, beginning balance	(1,068)	(1,068)
Carrying amount of goodwill, beginning balance	753	870
Acquisitions / purchase accounting adjustments	161	50
Currency translation	(23)	(167)
Gross goodwill, ending balance	1,959	1,821
Accumulated impairment, ending balance	(1,068)	(1,068)
Carrying amount of goodwill, ending balance	891	753
Global Products
Changes in the carrying amount of goodwill, by segment ($ in millions):
Gross goodwill, beginning balance	2,047	1,809
Accumulated impairment, beginning balance	(567)	(567)
Carrying amount of goodwill, beginning balance	1,480	1,242
Acquisitions / purchase accounting adjustments	5	274
Currency translation	(6)	(36)
Gross goodwill, ending balance	2,046	2,047
Accumulated impairment, ending balance	(567)	(567)
Carrying amount of goodwill, ending balance	$ 1,479	$ 1,480