Consolidated Statements of Stockholders' Equity and Comprehensive Income (Loss) Statement - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss
Beginning balance at Sep. 28, 2012	$ 1,905.5	$ 48.1	$ (161.8)	$ 1,920.0	$ 100.8	$ (1.6)
Common stock, shares, outstanding beginning balance (in shares) at Sep. 28, 2012		192.3
Treasury stock, shares outstanding, beginning balance (in shares) at Sep. 28, 2012			10.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	278.1				278.1
Exercise and settlement of share based awards and related tax benefit, net of shares withheld for taxes (in shares)		3.7	0.9
Exercise and settlement of share based awards and related tax benefit, net of shares withheld for taxes	31.1	$ 0.9	$ (18.6)	48.8
Share-based Compensation expense	70.6			70.6
Share repurchase program (in shares)		(8.1)	8.1
Share repurchase program	(184.9)	$ (2.0)	$ (184.9)	2.0
Other comprehensive loss	0.7					0.7
Common stock, shares, outstanding ending balance (in shares) at Sep. 27, 2013		187.9
Treasury stock, shares outstanding, ending balance (in shares) at Sep. 27, 2013			19.6
Ending balance at Sep. 27, 2013	2,101.1	$ 47.0	$ (365.3)	2,041.4	378.9	(0.9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	457.7				457.7
Exercise and settlement of share based awards and related tax benefit, net of shares withheld for taxes (in shares)		5.8	0.9
Exercise and settlement of share based awards and related tax benefit, net of shares withheld for taxes	109.2	$ 1.4	$ (22.1)	129.9
Share-based Compensation expense	75.8			75.8
Share repurchase program (in shares)		(4.5)	4.5
Share repurchase program	(165.7)	$ (1.1)	$ (165.7)	1.1
Dividends declared	(41.7)				(41.7)
Other comprehensive loss	$ (4.0)					(4.0)
Common stock, shares, outstanding ending balance (in shares) at Oct. 03, 2014	189.2	189.2
Treasury stock, shares outstanding, ending balance (in shares) at Oct. 03, 2014			25.0
Ending balance at Oct. 03, 2014	$ 2,532.4	$ 47.3	$ (553.1)	2,248.2	794.9	(4.9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	798.3				798.3
Exercise and settlement of share based awards and related tax benefit, net of shares withheld for taxes (in shares)		4.0	0.8
Exercise and settlement of share based awards and related tax benefit, net of shares withheld for taxes	103.5	$ 1.0	$ (54.2)	156.7
Share-based Compensation expense	$ 89.6			89.6
Share repurchase program (in shares)	2.9	(2.9)	2.9
Share repurchase program	$ (237.3)	$ (0.7)	$ (237.3)	0.7
Dividends declared	(124.0)				(124.0)
Other comprehensive loss	$ (3.3)					(3.3)
Common stock, shares, outstanding ending balance (in shares) at Oct. 02, 2015	190.3	190.3
Treasury stock, shares outstanding, ending balance (in shares) at Oct. 02, 2015			28.7
Ending balance at Oct. 02, 2015	$ 3,159.2	$ 47.6	$ (844.6)	$ 2,495.2	$ 1,469.2	$ (8.2)