Goodwill and Other Intangible Assets (Schedule of changes in the carrying amount of goodwill) (Details) $ in Millions	3 Months Ended
	Aug. 28, 2016 USD ($)
Goodwill [Line Items]
Beginning balance	$ 8,741.2
Other activity, primarily foreign currency translation	17.0
Ending balance	8,758.2
U.S. Retail [Member]
Goodwill [Line Items]
Beginning balance	6,292.9
Other activity, primarily foreign currency translation	0.0
Ending balance	6,292.9
International [Member]
Goodwill [Line Items]
Beginning balance	1,121.0
Other activity, primarily foreign currency translation	14.1
Ending balance	1,135.1
Convenience Stores and Foodservice [Member]
Goodwill [Line Items]
Beginning balance	921.1
Other activity, primarily foreign currency translation	0.0
Ending balance	921.1
Joint Ventures [Member]
Goodwill [Line Items]
Beginning balance	406.2
Other activity, primarily foreign currency translation	2.9
Ending balance	$ 409.1