PENSION AND POSTRETIREMENT BENEFITS (Benefit Obligations) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
May 26, 2013	May 27, 2012
Pension Benefits
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss
Net actuarial (gain) loss	$ (110.2)	$ 521.4
Prior service cost (benefit)	6.8	5.3
Amortization of prior service (cost) benefit	(4.4)	(3.0)
Recognized net actuarial (loss)	(3.6)	(396.9)
Net amount recognized	(111.4)	126.8
Other Benefits
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss
Net actuarial (gain) loss	(7.7)	12.4
Prior service cost (benefit)	0	(40.6)
Amortization of prior service (cost) benefit	8.2	13.6
Recognized net actuarial (loss)	(5.9)	(7.6)
Net amount recognized	$ (5.4)	$ (22.2)

Before tax amount, net of reclassification adjustments, of the benefit improvement costs resulting from a plan amendment that occurred that has not been recognized in net periodic benefit cost.

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Before tax amount of the income statement impact of the reclassification adjustment for prior service costs recognized as a component of net period benefit cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher AICPA

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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