INTEREST AND OTHER, NET (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2013
INTEREST AND OTHER, NET      
Interest income $ 18.7 $ 17.6 $ 20.0
Interest expense 76.4 79.9 68.9
Gains on foreign exchange transactions $ 19.7 $ 11.8 $ 19.9