Leases - Summary of Location of Lease Costs in Consolidated Statement of Operations (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Dec. 31, 2022	Jan. 01, 2022
Finance lease cost:
Amortization of finance lease assets	$ 21.2	$ 18.4	$ 41.6	$ 31.3
Interest on lease liabilities	4.5	4.3	8.7	8.2
Total finance lease cost	25.7	22.7	50.3	39.5
Operating lease cost	37.2	38.7	73.9	68.3
Short-term lease cost	16.7	17.7	34.7	28.6
Total lease cost	$ 79.6	$ 79.1	$ 158.9	$ 136.4