PROPERTY, PLANT AND EQUIPMENT - Components (Details) - USD ($) $ in Millions	Aug. 26, 2018	May 27, 2018
Property, Plant and Equipment
Property, plant, and equipment, at cost	$ 2,661.9	$ 2,581.3
Less accumulated depreciation	(1,194.0)	(1,160.5)
Property, plant, and equipment, net	1,467.9	1,420.8
Land and land improvements
Property, Plant and Equipment
Property, plant, and equipment, at cost	140.0	139.8
Buildings, machinery, and equipment
Property, Plant and Equipment
Property, plant, and equipment, at cost	2,246.4	2,212.6
Furniture, fixtures, office equipment, and other
Property, Plant and Equipment
Property, plant, and equipment, at cost	103.6	101.0
Construction in progress
Property, Plant and Equipment
Property, plant, and equipment, at cost	$ 171.9	$ 127.9