Employee Stock and Benefit Plans (Stock Option Transactions) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Sep. 28, 2014
Shares Subject to Options
Outstanding, September 27, 2015, Shares Subject to Options	33.6
Granted, Shares Subject to Options	6.1
Exercised, Shares Subject to Options	(6.7)
Expired/forfeited, Shares Subject to Options	(1.7)
Outstanding, October 2, 2016, Shares Subject to Options	31.3	33.6
Exercisable, October 2, 2016, Shares Subject to Options	20.1
Vested and expected to vest, October 2, 2016, Shares Subject to Options	30.1
Weighted Average Exercise Price per Share
Outstanding, September 27, 2015, Weighted Average Exercise Price per Share Beginning Balance	$ 23.81
Granted, Weighted Average Exercise Price per Share	60.20	$ 39.89	$ 40.12
Exercised, Weighted Average Exercise Price per Share	20.61
Expired/forfeited, Weighted Average Exercise Price per Share	40.94
Outstanding, October 2, 2016, Weighted Average Exercise Price per Share Ending Balance	30.59	$ 23.81
Exercisable at October 2, 2016, Weighted Average Exercise Price per Share	21.01
Vested and expected to vest, October 2, 2016, Weighted Average Exercise Price per Share	$ 29.78
Additional Disclosures
Outstanding, Weighted Average Remaining Contractual Life (Years)	5 years 9 months 18 days	6 years
Exercisable, October 2, 2016, Weighted Average Remaining Contractual Life (Years)	4 years 4 months 24 days
Vested and expected to vest, October 2, 2016, Weighted Average Remaining Contractual Life (Years)	5 years 8 months 12 days
Aggregate Intrinsic Value
Outstanding, Aggregate Intrinsic Value	$ 771	$ 1,150
Exercisable, October 2, 2016, Aggregate Intrinsic Value	670
Vested and expected to vest, October 2, 2016, Aggregate Intrinsic Value	$ 765