Earnings per Share (EPS) and Common Stock (Narrative) (Details) - USD ($) shares in Millions		9 Months Ended
	Jul. 20, 2018	Jun. 30, 2018	Jul. 01, 2017
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Stock option restricted shares and restricted stock units excluded from computation of EPS, shares		0.1	2.0
Stock Repurchase Program, Authorized Amount		$ 500,000,000
Payments for Repurchase of Common Stock		$ 100,000,000	$ 34,994,000
Subsequent Event [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Stock Repurchase Program, Authorized Amount	$ 1,000,000,000
Accelerated Share Repurchases, Settlement (Payment) or Receipt	$ 1,000,000,000
Minimum [Member] | Subsequent Event [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Accelerated Share Repurchase Settlement Period	7 months 15 days
Maximum [Member] | Subsequent Event [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Accelerated Share Repurchase Settlement Period	10 months