PROPERTY, PLANT AND EQUIPMENT (Details) (USD $) In Millions, unless otherwise specified			12 Months Ended
	May 31, 2013	May 31, 2012	May 31, 2013 Minimum	May 31, 2013 Maximum	May 31, 2013 Computer, network, machinery and equipment Minimum	May 31, 2013 Computer, network, machinery and equipment Maximum	May 31, 2013 Buildings and improvements Minimum	May 31, 2013 Buildings and improvements Maximum	May 31, 2013 Furniture, fixtures and other Minimum	May 31, 2013 Furniture, fixtures and other Maximum
Property, Plant And Equipment [Line Items]
Estimated Useful Lives			1 year	50 years	1 year	5 years	1 year	50 years	3 years	10 years
Property, Plant and Equipment, Net [Abstract]
Computer, network, machinery and equipment	$ 2,138	$ 1,761
Buildings and improvements	2,477	2,351
Furniture, fixtures and other	481	492
Land	632	702
Construction in progress	28	113
Total property, plant and equipment	5,756	5,419
Accumulated depreciation	(2,703)	(2,398)
Total property, plant and equipment, net	$ 3,053	$ 3,021