Earnings Per Share and Certain Related Information (Details) - USD ($) $ / shares in Units, shares in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 23, 2015	Apr. 01, 2016	Mar. 27, 2015	Apr. 01, 2016	Mar. 27, 2015
Shares used to calculate EPS:
Weighted average shares outstanding (denominator used to compute basic EPS)		120,216	125,992	120,554	127,283
Effect of stock options and restricted stock		927	1,174	1,000	1,247
Denominator used to compute diluted EPS		121,143	127,166	121,554	128,530
Antidilutive stock options and restricted stock		3,714	4,379	3,651	4,376
Shares of common stock issued from the exercise of stock options and the release of restricted stock		228	243	515	639
Share Repurchases
Amount authorized to be repurchased	$ 500,000,000
Average cost per share repurchased ($ per share)	$ 40.10
Number of shares repurchased (in shares)	1,803