Stockholders' Equity (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		12 Months Ended
	Jun. 28, 2014	Sep. 28, 2013	Jun. 28, 2014
Stock Repurchase Program
Outstanding common stock repurchased (in shares)	4.9	7.4
Common stock repurchase price per share (in dollars per share)		$ 13.45
Purchase price reflected as a decrease to common stock	$ 55.2	$ 100.0	$ 155.2
Average repurchase price per share (in dollars per share)	$ 11.37