Insurance Program Liabilities - Summary of Activity in All Types of Deductible Insurance Program Liabilities (Detail) - USD ($) $ in Millions	12 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jun. 27, 2020
Insurance [Abstract]
Beginning balance	$ 178.1	$ 181.8	$ 123.1
Additional liabilities assumed in connection with an acquisition	40.8		40.2
Charged to costs and expenses	346.5	236.6	202.2
Payments	(338.4)	(240.3)	(183.7)
Ending Balance	$ 227.0	$ 178.1	$ 181.8