Acquisitions - Intangibles (Details) - 2016 Acquisitions $ in Millions	9 Months Ended
	Jun. 24, 2016 USD ($)
Acquired intangible assets
Acquired intangible assets, fair value amount	$ 402
Acquired intangible assets, Weighted-Average Amortization Period	16 years
Customer relationships
Acquired intangible assets
Acquired intangible assets, fair value amount	$ 180
Acquired intangible assets, Weighted-Average Amortization Period	20 years
Developed technology
Acquired intangible assets
Acquired intangible assets, fair value amount	$ 162
Acquired intangible assets, Weighted-Average Amortization Period	11 years
Trade names and trademarks
Acquired intangible assets
Acquired intangible assets, fair value amount	$ 45
Acquired intangible assets, Weighted-Average Amortization Period	22 years
Customer order backlog
Acquired intangible assets
Acquired intangible assets, fair value amount	$ 15
Acquired intangible assets, Weighted-Average Amortization Period	3 years