Restructuring, Impairment, and Other Exit Costs (Schedule of restructuring initiatives) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	May 31, 2020	May 26, 2019	May 27, 2018
Restructuring and Related Cost [Line Items]
Restructuring Charges (Reversal), Including Restructuring Charges Associated with Cost of Goods Sold	$ 11.5	$ 77.6	$ 82.7
Targeted Actions In Global Supply Chain [Member]
Restructuring and Related Cost [Line Items]
Restructuring Charges (Reversal), Including Restructuring Charges Associated with Cost of Goods Sold		80.2
Charges associated with Restructuring Actions Previously Announced [Member]
Restructuring and Related Cost [Line Items]
Restructuring Charges (Reversal), Including Restructuring Charges Associated with Cost of Goods Sold		$ (2.6)	33.4
Global Cost Savings Initiative [Member]
Restructuring and Related Cost [Line Items]
Restructuring Charges (Reversal), Including Restructuring Charges Associated with Cost of Goods Sold			$ 49.3