Goodwill (Details) - USD ($) $ in Millions		12 Months Ended
	Oct. 09, 2014	Sep. 25, 2015	Sep. 26, 2014	Sep. 27, 2013
Goodwill:
Goodwill, beginning balance		$ 3,726	$ 3,452
Acquisitions		1,211	311
Currency translation and other		(113)	(37)
Goodwill, ending balance		4,824	3,726
Goodwill impairment		0
Transportation Solutions
Goodwill:
Goodwill, beginning balance		834	797
Acquisitions		1,066	46
Currency translation and other		(37)	(9)
Goodwill, ending balance		1,863	834
Accumulated impairment losses		2,191	2,191	$ 2,191
Industrial Solutions
Goodwill:
Goodwill, beginning balance		2,165	1,919
Acquisitions		145	265
Currency translation and other		(57)	(19)
Goodwill, ending balance		2,253	2,165
Accumulated impairment losses		669	669	669
Communications Solutions
Goodwill:
Goodwill, beginning balance		727	736
Currency translation and other		(19)	(9)
Goodwill, ending balance		708	727
Accumulated impairment losses		$ 1,626	$ 1,626	$ 1,626
Measurement Specialties
Goodwill:
Goodwill, ending balance	$ 1,064
Measurement Specialties | Transportation Solutions
Goodwill:
Acquisitions	$ 1,064