Restructuring, Impairment, and Other Exit Costs (Schedule of restructuring charges) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 28, 2021	Feb. 23, 2020	Feb. 28, 2021	Feb. 23, 2020
Restructuring and Related Cost [Line Items]
Total restructuring and impairment charges	$ 11.7	$ 12.4	$ 13.6	$ 37.2
Asia & Latin America route-to-market and supply chain optimization [Member]
Restructuring and Related Cost [Line Items]
Total restructuring and impairment charges	11.5	0.0	11.5	0.0
Charges associated with restructuring actions previously announced [Member]
Restructuring and Related Cost [Line Items]
Total restructuring and impairment charges	$ 0.2	$ 12.4	$ 2.1	$ 37.2