Debt (Textuals) (Details) - USD ($)	12 Months Ended
	Jun. 27, 2020	Jul. 31, 2020	Jul. 30, 2020	Jun. 29, 2019
Debt Instrument [Line Items]
Accounts Receivable from Securitization	$ 703,800,000			$ 857,300,000
Company's total debt
Debt, Long-term and Short-term, Combined Amount	1,424,842,000			1,720,000,000
Total fair value	$ 1,520,000,000			1,780,000,000
Base Rate Or Commercial Paper
Debt Instrument [Line Items]
Spread over base rate	0.75%
Accounts receivable securitization program
Debt Instrument [Line Items]
Accounts Receivable Securitization Program Maximum Borrowing Amount	$ 500,000,000
Receivables securitization program maximum amount of eligible receivables that may be sold		$ 450,000,000	$ 500,000,000
Accounts receivable securitization program, borrowings outstanding	$ 0			227,300,000
Line of Credit Facility, Commitment Fee Percentage	0.35%
Revolving credit facilities
Debt Instrument [Line Items]
Maximum borrowing amount	$ 1,250,000,000
Term	5 years
Line of credit facility contingent increase to maximum borrowing capacity	$ 1,500,000,000
Letter of Credit
Debt Instrument [Line Items]
Maximum borrowing amount	200,000,000.0
Letters of credit outstanding, amount	1,600,000			$ 4,000,000.0
Notes Payable In Certain Approved Currencies
Debt Instrument [Line Items]
Maximum borrowing amount	$ 300,000,000.0