BUSINESS SEGMENTS AND RELATED INFORMATION - Schedule of Net Sales by Product Type (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	May 26, 2019	Feb. 24, 2019	Nov. 25, 2018	Aug. 26, 2018	May 27, 2018	Feb. 25, 2018	Nov. 26, 2017	Aug. 27, 2017	May 26, 2019	May 27, 2018	May 28, 2017
Segment Reporting Information [Line Items]
Total net sales	$ 2,613.2	$ 2,707.1	$ 2,383.7	$ 1,834.4	$ 1,966.2	$ 1,994.5	$ 2,173.4	$ 1,804.2	$ 9,538.4	$ 7,938.3	$ 7,826.9
Snacks
Segment Reporting Information [Line Items]
Total net sales									1,363.4	1,199.0	1,046.7
Other shelf-stable
Segment Reporting Information [Line Items]
Total net sales									2,567.1	2,088.0	2,162.1
Frozen
Segment Reporting Information [Line Items]
Total net sales									2,968.4	2,014.8	1,886.1
Refrigerated
Segment Reporting Information [Line Items]
Total net sales									788.0	738.2	766.5
International
Segment Reporting Information [Line Items]
Total net sales									846.2	843.5	816.0
Foodservice
Segment Reporting Information [Line Items]
Total net sales									1,005.3	1,054.8	1,078.4
Commercial
Segment Reporting Information [Line Items]
Total net sales									$ 0.0	$ 0.0	$ 71.1