PRE-TAX INCOME AND INCOME TAXES (Tax Effect of Temporary Differences) (Details) (USD $) In Millions, unless otherwise specified	May 26, 2013	May 27, 2012
Income Tax Disclosure [Abstract]
Property, plant and equipment	$ 679.4	$ 488.1
Goodwill, trademarks and other intangible assets	1,405.2	681.3
Accrued expenses	42.3	25.4
Compensation related liabilities	108.4	74.7
Pension and other postretirement benefits	291.4	310.7
Derivative cash flow hedge	38.0	57.2
Other liabilities that will give rise to future tax deductions	140.2	115.2
Net operating loss carryforwards	92.9	42.7
Other assets	72.8	67.4
Other Liabilities	27.5	31.4
Deferred tax liabilities gross	2,112.1	1,200.8
Deferred Tax Assets, Gross, Total	786.0	693.3
Less: Valuation allowance	(44.8)	(43.7)
Net deferred taxes Assets, Total	741.2	649.6
Net deferred taxes Liabilities, Total	$ 2,112.1	$ 1,200.8