Debt And Capital Lease Obligations (Credit Facility) (Narrative) (Details)	9 Months Ended
	Jun. 02, 2018 USD ($)	Jun. 03, 2017 USD ($)
Debt Instrument [Line Items]
Maximum consolidated leverage ratio of total indebtedness to EBITDA	3.00
Minimum consolidated interest coverage ratio of EBITDA to total interest expense	3.00
Borrowings under Credit Facility	$ 172,000,000	$ 439,000,000
Repayments of debt	220,000,000	$ 529,500,000
New Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 600,000,000
Maturity date	Apr. 14, 2022
Credit facility, expiration term	5 years
Available increase in amount borrowed	$ 300,000,000
Borrowing rate under Credit Facility	3.03%
Borrowings under Credit Facility	$ 172,000,000
Repayments of debt	220,000,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 50,000,000
LIBOR [Member] | New Credit Facility [Member]
Debt Instrument [Line Items]
Percentage points in addition to reference rate used in computation of variable rate on debt instrument	1.125%