REVENUE FROM CONTRACTS WITH CUSTOMERS - Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 26, 2018	Aug. 27, 2017
Revenue from Contracts with Customers
Revenue	$ 914.9	$ 817.5
Global
Revenue from Contracts with Customers
Revenue	466.8	413.9
Foodservice
Revenue from Contracts with Customers
Revenue	297.8	279.4
Retail
Revenue from Contracts with Customers
Revenue	116.2	92.0
Other
Revenue from Contracts with Customers
Revenue	34.1	$ 32.2
Calculated under Revenue Guidance in Effect before Topic 606 | Accounting Standards Update 2014-09
Revenue from Contracts with Customers
Revenue	917.4
Calculated under Revenue Guidance in Effect before Topic 606 | Accounting Standards Update 2014-09 | Global
Revenue from Contracts with Customers
Revenue	468.5
Calculated under Revenue Guidance in Effect before Topic 606 | Accounting Standards Update 2014-09 | Foodservice
Revenue from Contracts with Customers
Revenue	298.0
Calculated under Revenue Guidance in Effect before Topic 606 | Accounting Standards Update 2014-09 | Retail
Revenue from Contracts with Customers
Revenue	116.1
Calculated under Revenue Guidance in Effect before Topic 606 | Accounting Standards Update 2014-09 | Other
Revenue from Contracts with Customers
Revenue	34.8
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09
Revenue from Contracts with Customers
Revenue	(2.5)
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09 | Global
Revenue from Contracts with Customers
Revenue	(1.7)
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09 | Foodservice
Revenue from Contracts with Customers
Revenue	(0.2)
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09 | Retail
Revenue from Contracts with Customers
Revenue	0.1
Difference between Revenue Guidance in Effect before and after Topic 606 | Accounting Standards Update 2014-09 | Other
Revenue from Contracts with Customers
Revenue	$ (0.7)