Leases (Supplemental Cash Flow Information) (Details) - USD ($) $ in Millions	12 Months Ended
	May 30, 2021	May 31, 2020
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 369.2	$ 371.7
Operating cash flows from finance leases	20.9	15.9
Financing cash flows from finance leases	7.1	5.2
Right-of-use assets obtained in exchange for lease liabilities
Right-of-use assets obtained in exchange for new operating lease liabilities	14.5	171.3
Right-of-use assets obtained in exchange for new finance lease liabilities	$ 196.4	$ 191.9
Weighted-Average Remaining Lease Term (Years)
Operating leases	16 years 2 months 12 days	16 years 10 months 24 days
Finance leases	21 years 9 months 18 days	20 years 7 months 6 days
Weighted-Average Discount Rate
Operating leases	4.20%	4.20%
Finance leases	4.40%	4.80%