Goodwill and Other Intangible Assets (Schedule of components of goodwill and other intangible assets) (Details) - USD ($) $ in Millions	Aug. 26, 2018	May 27, 2018
Goodwill and Other Intangible Assets [Abstract]
Goodwill	$ 14,030.4	$ 14,065.0
Intangible assets not subject to amortization:
Brands and other indefinite-lived intangibles	6,805.9	6,818.7
Intangible assets subject to amortization:
Franchise agreements, customer relationships, and other finite-lived intangibles	802.8	811.7
Less accumulated amortization	(187.9)	(185.3)
Intangible assets subject to amortization, net	614.9	626.4
Other intangible assets	7,420.8	7,445.1
Total	$ 21,451.2	$ 21,510.1