OTHER NONCURRENT LIABILITIES (Details) - USD ($) $ in Millions	May. 31, 2015	May. 25, 2014
Other Liabilities Disclosure [Abstract]
Postretirement health care and pension obligations	$ 809.0	$ 735.0
Noncurrent income tax liabilities	1,588.9	1,510.1
Self-insurance liabilities	100.1	107.6
Environmental liabilities	55.0	63.0
Other	288.0	256.4
Other noncurrent and current liabilities	2,841.0	2,672.1
Less current portion	(107.9)	(72.7)
Other noncurrent liabilities	$ 2,733.1	$ 2,599.4