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DISCONTINUED OPERATIONS AND OTHER DIVESTITURES - Other Divestitures (Narrative) (Details) $ in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Aug. 28, 2016 USD ($)	May 27, 2018 USD ($)	May 28, 2017 USD ($)	May 29, 2016 USD ($)	Feb. 25, 2018 USD ($)	Feb. 25, 2018 CAD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax gains from sales of businesses		$ 0.0	$ 197.4	$ 0.0
Held for sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncurrent assets held for sale		137.2	140.4
Corporate segment \| Held for sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncurrent assets held for sale		10.4	11.6
Grocery & Snacks segments \| Held for sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncurrent assets held for sale		14.9	14.6
Del Monte \| Disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net proceeds from sale expected to be realized					$ 34.0	$ 43.0
Del Monte \| Held for sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncurrent assets held for sale		11.5	11.4
Wesson \| Held and used
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment charge recognized on production facility			27.6
Wesson \| Held for sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncurrent assets held for sale		101.0	102.8
Spicetec \| Commercial \| Disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash proceeds from disposition, net of cash included	$ 329.7
Pre-tax gains from sales of businesses	144.8
JM Swank \| Commercial \| Disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash proceeds from disposition, net of cash included	159.3
Pre-tax gains from sales of businesses	$ 52.6
Transition Services Agreement [Member] \| Spicetec and JM Swank
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition services income for performance of services		$ 0.2	$ 1.9