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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.

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