FAIR VALUE MEASUREMENTS (Fair Value of Assets and Liabilities Measured on Recurring Basis) (Details) (USD $) In Millions, unless otherwise specified	Nov. 24, 2013	May 26, 2013
Assets:
Derivative assets	$ 57.1	$ 78.6
Available-for-sale securities	2.5	6.1
Deferred compensation assets	6.8	6.9
Total assets	66.4	91.6
Liabilities:
Derivative liabilities	84.7	137.9
Deferred compensation liabilities	41.3	35.9
Total liabilities	126.0	173.8
Level 1
Assets:
Derivative assets	5.2	13.9
Available-for-sale securities	2.5	6.1
Deferred compensation assets	6.8	6.9
Total assets	14.5	26.9
Liabilities:
Derivative liabilities	0	0
Deferred compensation liabilities	41.3	35.9
Total liabilities	41.3	35.9
Level 2
Assets:
Derivative assets	51.9	64.7
Available-for-sale securities	0	0
Deferred compensation assets	0	0
Total assets	51.9	64.7
Liabilities:
Derivative liabilities	84.7	137.9
Deferred compensation liabilities	0	0
Total liabilities	84.7	137.9
Level 3
Assets:
Derivative assets	0	0
Available-for-sale securities	0	0
Deferred compensation assets	0	0
Total assets	0	0
Liabilities:
Derivative liabilities	0	0
Deferred compensation liabilities	0	0
Total liabilities	$ 0	$ 0