DISCONTINUED OPERATIONS AND OTHER DIVESTITURES - Schedule of Assets and Liabilities Classified as Held for Sale (Details) - USD ($) $ in Millions	May 28, 2017	May 29, 2016	May 31, 2015	May 25, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents	$ 0.0	$ 36.4	$ 49.0	$ 90.6
Spinoff | Lamb Weston
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents		36.4
Receivables, less allowance for doubtful accounts of $0.5		186.5
Allowance for doubtful accounts		0.5
Inventories		498.9
Prepaid expenses and other current assets		57.9
Total current assets of discontinued operations		779.7
Property, plant and equipment, net		1,004.1
Goodwill		133.9
Brands, trademarks and other intangibles, net		39.6
Other assets		161.7
Total noncurrent assets of discontinued operations		1,339.3
Notes payable		24.9
Current installments of long-term debt		12.0
Accounts payable		238.7
Accrued payroll		50.3
Other accrued liabilities		83.3
Total current liabilities of discontinued operations		409.2
Senior long-term debt, excluding current installments		36.4
Other noncurrent liabilities		268.4
Total noncurrent liabilities of discontinued operations		304.8
Held for sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total current assets of discontinued operations	35.5	156.1
Total noncurrent assets of discontinued operations	96.4	329.1
Total current liabilities of discontinued operations	0.0	54.7
Total noncurrent liabilities of discontinued operations	0.0	1.5
Held for sale | Wesson
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total current assets of discontinued operations	35.5	39.1
Goodwill	77.3	77.3
Total noncurrent assets of discontinued operations	$ 94.7	95.0
Held for sale | Commercial | Spicetec
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total current assets of discontinued operations		43.3
Goodwill		104.7
Total noncurrent assets of discontinued operations		148.3
Total current liabilities of discontinued operations		10.3
Total noncurrent liabilities of discontinued operations		1.2
Held for sale | Commercial | JM Swank
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total current assets of discontinued operations		73.7
Goodwill		53.8
Total noncurrent assets of discontinued operations		74.3
Total current liabilities of discontinued operations		44.3
Total noncurrent liabilities of discontinued operations		$ 0.4