Leases (Components of Lease Expenses) (Details) $ in Millions	3 Months Ended
	Aug. 25, 2019 USD ($)
Operating Leases
Operating lease expense	$ 96.4
Finance Leases
Amortization of leased assets	1.5
Interest on lease liabilities	3.3
Variable lease expense	1.4
Total lease expense	102.6
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	88.9
Operating cash flows from finance leases	3.3
Financing cash flows from finance leases	1.3
Right-of-use assets obtained in exchange for lease liabilities
Right-of-use assets obtained in exchange for new operating lease liabilities	14.4
Right-of-use assets obtained in exchange for new finance lease liabilities	$ 78.5