Goodwill and Other Intangible Assets (Schedule of at-risk brand intangible assets) (Details) - USD ($) $ in Millions	3 Months Ended
	Nov. 24, 2019	May 31, 2020	May 26, 2019	May 27, 2018	May 28, 2017
Indefinite-lived Intangible Assets by Major Class [Line Items]
Carrying value of indefinite-lived intangible assets		$ 7,095.8	$ 7,166.8	$ 7,445.1	$ 4,530.4
Europe & Australia [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Carrying value of indefinite-lived intangible assets	$ 672.6
Excess Fair Value Above Carrying Value, Percentage	14.00%
Progresso Brand [Member]
Indefinite-lived Intangible Assets by Major Class [Line Items]
Carrying value of indefinite-lived intangible assets	$ 330.0
Excess Fair Value Above Carrying Value, Percentage	5.00%