Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Millions	9 Months Ended
	Feb. 22, 2026	May 25, 2025
Goodwill [Roll Forward]
Beginning balance	$ 15,622.4
Divestiture	(4.9)
Purchase accounting adjustments	(31.9)
Other activity, primarily foreign currency translation	48.8
Ending balance	15,634.4
Corporate and Joint Ventures
Goodwill [Roll Forward]
Beginning balance	442.2
Purchase accounting adjustments	0.0
Other activity, primarily foreign currency translation	15.4
Ending balance	457.6
Corporate and Reconciling Items
Goodwill [Roll Forward]
Divestiture	0.0
North America Retail | Operating Segments
Goodwill [Roll Forward]
Beginning balance	6,323.5
Divestiture	(4.7)
Purchase accounting adjustments	0.0
Other activity, primarily foreign currency translation	0.3
Ending balance	6,319.1
North America Pet | Operating Segments
Goodwill [Roll Forward]
Beginning balance	7,149.5
Divestiture	0.0
Purchase accounting adjustments	(31.9)
Other activity, primarily foreign currency translation	0.0
Ending balance	7,117.6
North America Foodservice | Operating Segments
Goodwill [Roll Forward]
Beginning balance	755.5
Divestiture	(0.2)
Purchase accounting adjustments	0.0
Other activity, primarily foreign currency translation	0.0
Ending balance	755.3
International | Operating Segments
Goodwill [Roll Forward]
Beginning balance	951.7
Divestiture	0.0
Purchase accounting adjustments	0.0
Other activity, primarily foreign currency translation	33.1
Ending balance	984.8
Accumulated impairment losses	$ 117.1	$ 117.1