Debt - Accounts Receivable Securitization Program (Details) - USD ($) $ in Millions		12 Months Ended
	Aug. 01, 2018	Jun. 30, 2018	Jul. 01, 2017
Short-term Debt [Line Items]
Accounts Receivables from Securitization		$ 790.5	$ 807.5
Accounts receivable securitization program
Short-term Debt [Line Items]
Accounts receivable securitization program loan term	2 years
Accounts receivable securitization program maximum borrowing amount	$ 500.0	400.0
Accounts receivable securitization program, borrowings outstanding		$ 105.0	$ 142.0
Program facility fee		0.40%
Accounts receivable securitization program | LIBOR
Short-term Debt [Line Items]
Spread over base rate	0.75%
Accounts receivable securitization program | Maximum
Short-term Debt [Line Items]
Program facility fee	0.35%