BUSINESS SEGMENTS AND RELATED INFORMATION (Net Sales by Product) (Details) - USD ($) $ in Millions	3 Months Ended							6 Months Ended	12 Months Ended
	May 29, 2016	Feb. 28, 2016	Nov. 29, 2015	Aug. 30, 2015	May 31, 2015	Feb. 22, 2015	Aug. 24, 2014	Nov. 23, 2014	May 29, 2016	May 31, 2015	May 25, 2014
Segment Reporting Information [Line Items]
Net sales	$ 2,827.5	$ 2,924.1	$ 3,095.1	$ 2,796.2	$ 3,125.5	$ 2,907.3	$ 2,765.5	$ 3,138.7	$ 11,642.9	$ 11,937.0	$ 11,838.2
Consumer Foods
Segment Reporting Information [Line Items]
Net sales									7,225.1	7,565.3	7,596.3
Consumer Foods | Grocery
Segment Reporting Information [Line Items]
Net sales									3,382.0	3,503.7	4,182.1
Consumer Foods | Frozen
Segment Reporting Information [Line Items]
Net sales									2,867.4	2,985.5	2,288.1
Consumer Foods | International
Segment Reporting Information [Line Items]
Net sales									874.8	970.8	1,010.7
Consumer Foods | Other Brands
Segment Reporting Information [Line Items]
Net sales									100.9	105.3	115.4
Commercial Foods
Segment Reporting Information [Line Items]
Net sales									4,417.8	4,371.7	4,241.9
Commercial Foods | Specialty Potatoes
Segment Reporting Information [Line Items]
Net sales									2,968.1	2,892.4	2,792.7
Commercial Foods | Foodservice
Segment Reporting Information [Line Items]
Net sales									$ 1,449.7	$ 1,479.3	$ 1,449.2