Leases - Summary of Location of Lease Costs in Consolidated Statement of Operations (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Dec. 30, 2023	Dec. 31, 2022
Finance lease cost:
Amortization of finance lease assets	$ 27.8	$ 21.2	$ 53.8	$ 41.6
Interest on lease liabilities	7.6	4.5	14.5	8.7
Total finance lease cost	35.4	25.7	68.3	50.3
Operating lease cost	41.8	37.2	80.3	73.9
Short-term lease cost	16.5	16.7	32.8	34.7
Total lease cost	$ 93.7	$ 79.6	$ 181.4	$ 158.9