Stockholders' Equity (Stock Options) (Details) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Sep. 30, 2016 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Balance outstanding at October 2, 2015 (in shares) | shares	5.4
Granted (in shares) | shares	0.8
Exercised (in shares) | shares	(1.3)
Canceled/forfeited (in shares) | shares	(0.1)
Balance outstanding at September 30, 2016 (in shares) | shares	4.8
Stock Options, Exercisable, Shares | shares	2.1
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Stock options outstanding, weighted average exercise price, beginning balance | $ / shares	$ 30.08
Granted, weighted average exercise price | $ / shares	82.36
Exercised, weighted average exercise price | $ / shares	21.14
Canceled/forfeited, weighted average exercise price | $ / shares	45.49
Stock options outstanding, weighted average exercise price, ending balance | $ / shares	41.35
Stock Options, Exercisable, Weighted average exercise price | $ / shares	$ 25.00
Weighted average remaining contractual life (in years)	3 years 10 months 24 days
Stock Options, Exercisable, Weighted average remaining contractual life (in years)	2 years 7 months 6 days
Aggregate intrinsic value | $	$ 174.0
Stock Options, Exercisable, Aggregate intrinsic value | $	$ 108.3