Property, Plant and Equipment, Net (Schedule Of Property, Plant And Equipment, Net) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Property, Plant and Equipment, Net [Abstract]
Land	$ 221	$ 129
Building, machinery, equipment and other	3,180	2,400
Total property, plant and equipment	3,401	2,529
Accumulated depreciation	(1,179)	(1,208)
Property, plant and equipment, net	$ 2,222	$ 1,321