Earnings Per Share and Certain Related Information (Details) - USD ($) $ / shares in Units, shares in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 23, 2015	Jun. 30, 2017	Jul. 01, 2016	Jun. 30, 2017	Jul. 01, 2016
Diluted:
Basic weighted average shares outstanding		119,206	119,850	119,360	120,330
Dilutive potential common shares		1,873	1,596	2,207	1,198
Diluted weighted average shares outstanding		121,079	121,446	121,567	121,528
Antidilutive stock options and restricted stock		460	2,152	107	2,871
Shares of common stock issued from the exercise of stock options and the release of restricted stock		606	534	1,973	1,049
Share Repurchases
Amount authorized to be repurchased	$ 500,000,000
Average cost per share repurchased ($ per share)	$ 48.44
Number of shares repurchased (in shares)	5,156