Leases - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Aug. 27, 2022	Aug. 28, 2021
Accumulated amortization related to finance lease assets	$ 97.2	$ 107.0
Cash paid for amounts included in the measurement of lease liabilities - operating cash flows from operating leases	316.0	$ 300.6
Land and Building
Additional leases not yet commenced, undiscounted future payments	27.2
Vehicles
Additional leases not yet commenced, undiscounted future payments	$ 48.1
Minimum [Member]
Operating lease commencement date	2023
Maximum [Member]
Operating lease commencement date	2024