Goodwill and Other Intangible Assets (Schedule of changes in the carrying amount of goodwill) (Details) $ in Millions	6 Months Ended
	Nov. 28, 2021 USD ($)
Goodwill [Line Items]
Beginning balance	$ 14,062.4
Acquisition	759.4
Reclassified to assets held for sale	(194.9)
Other activity, primarily foreign currency translation	(103.7)
Ending balance	14,523.2
North America Retail [Member]
Goodwill [Line Items]
Beginning balance	6,419.3
Acquisition	0.0
Reclassified to assets held for sale	0.0
Other activity, primarily foreign currency translation	(7.1)
Ending balance	6,412.2
Pet [Member]
Goodwill [Line Items]
Beginning balance	5,300.5
Acquisition	759.4
Reclassified to assets held for sale	0.0
Other activity, primarily foreign currency translation	0.0
Ending balance	6,059.9
Convenience Stores & Foodservice [Member]
Goodwill [Line Items]
Beginning balance	918.8
Acquisition	0.0
Reclassified to assets held for sale	0.0
Other activity, primarily foreign currency translation	0.0
Ending balance	918.8
Europe & Australia [Member]
Goodwill [Line Items]
Beginning balance	765.5
Acquisition	0.0
Reclassified to assets held for sale	(184.6)
Other activity, primarily foreign currency translation	(53.2)
Ending balance	527.7
Asia & Latin America [Member]
Goodwill [Line Items]
Beginning balance	212.7
Acquisition	0.0
Reclassified to assets held for sale	(10.3)
Other activity, primarily foreign currency translation	(11.4)
Ending balance	191.0
Joint Ventures [Member]
Goodwill [Line Items]
Beginning balance	445.6
Acquisition	0.0
Reclassified to assets held for sale	0.0
Other activity, primarily foreign currency translation	(32.0)
Ending balance	$ 413.6