SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended				9 Months Ended	12 Months Ended
		May. 31, 2015	Feb. 22, 2015	Nov. 23, 2014	Aug. 24, 2014	Feb. 23, 2014	May. 31, 2015	May. 25, 2014	May. 26, 2013
Property, Plant and Equipment [Line Items]
Fiscal Period Duration							371 days	364 days	364 days
Increase in reserve for environmental liabilities									$ 4.5
Advertising and promotion expenses							$ 344.2	$ 414.0	463.4
Research and Development expenses							90.4	101.8	91.1
Net foreign currency transaction losses from continuing operations							12.8	13.5	0.1
Increase to operating cash flows							1,480.6	1,568.6	1,412.2
Increase to cost of goods sold							12,523.9	12,331.7	10,104.4
Increase to investing cash flows							(41.6)	(531.5)	(5,465.8)
Decrease to selling, general, and administrative expenses							(3,472.1)	(2,771.2)	$ (2,065.9)
Adjustments for New Accounting Principle, Early Adoption | Other Assets
Property, Plant and Equipment [Line Items]
Adjustment for new accounting policy								46.9
Adjustments for New Accounting Principle, Early Adoption | Senior long-term debt
Property, Plant and Equipment [Line Items]
Adjustment for new accounting policy								46.9
Restatement Adjustment | Correction for Non-cash Additions to Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Increase to operating cash flows						$ 17.4
Increase to investing cash flows								17.4
Restatement Adjustment | Correction to Property Classify Accelerated Depreciation Related to Restructuring Activities
Property, Plant and Equipment [Line Items]
Increase to cost of goods sold			$ 3.9	$ 8.5	$ 8.0			17.5
Decrease to selling, general, and administrative expenses			$ 3.9	$ 8.5	$ 8.0			17.5
Discontinued Operations | Restatement Adjustment | Correction for Non-cash Additions to Property, Plant and Equipment
Property, Plant and Equipment [Line Items]
Increase to operating cash flows						$ 3.1
Increase to investing cash flows								3.1
Private Brands
Property, Plant and Equipment [Line Items]
Long-lived asset impairment charge		$ 13.7
Net derivative adjustment, net of tax: | Reclassification out of Accumulated Other Comprehensive Income
Property, Plant and Equipment [Line Items]
Amount previously reported in accumulated other comprehensive loss								41.8
Tax on amount previously reported in accumulated other comprehensive loss								15.6
Decrease to selling, general, and administrative expenses	[1],[2]						$ 0.0	$ (54.9)

[1] Amounts in parentheses indicate income recognized in the Consolidated Statements of Operations.

[2] Prior year amount includes $41.8 million less deferred tax benefit of $15.6 million previously reported in accumulated other comprehensive loss.