Earnings per Share (EPS) and Common Stock (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended		35 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Sep. 30, 2016	Aug. 04, 2014
Earnings Per Share and Common Stock
Stock option restricted shares and restricted stock units excluded from computation of EPS, shares	2,000,000	1,700,000
Common stock, shares authorized	500,000,000		500,000,000	500,000,000
Stock Repurchase Program, Authorized Amount					$ 600,000
Payments for Repurchase of Common Stock	$ 34,994	$ 0	$ 224,900