SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 29, 2015	Nov. 23, 2014	Nov. 29, 2015	Nov. 23, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Interest expense, net	$ 79.6	$ 78.7	$ 159.9	$ 162.0
Total before tax	(165.8)	(218.7)	(333.0)	(314.9)
Income tax expense (benefit)	83.2	101.9	168.1	145.0
Reclassification out of accumulated other comprehensive loss | Cash flow hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Interest expense, net	0.0	0.0	0.0	(0.5)
Total before tax	0.0	0.0	0.0	(0.5)
Income tax expense (benefit)	0.0	0.0	0.0	0.2
Net of tax	0.0	0.0	0.0	(0.3)
Reclassification out of accumulated other comprehensive loss | Amortization of pension and postretirement healthcare liabilities
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Net prior service benefit	(1.3)	(1.0)	(2.6)	(2.1)
Net actuarial losses	0.0	0.8	0.0	1.7
Total before tax	(1.3)	(0.2)	(2.6)	(0.4)
Income tax expense (benefit)	0.5	0.0	1.0	0.1
Net of tax	$ (0.8)	$ (0.2)	$ (1.6)	$ (0.3)