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SHARE REPURCHASES (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 9 Months Ended
Dec. 31, 2014
Dec. 31, 2014
Aug. 28, 2014
SHARE REPURCHASES      
Aggregate shares repurchased (in shares) 7.8us-gaap_StockRepurchasedAndRetiredDuringPeriodShares 27.6us-gaap_StockRepurchasedAndRetiredDuringPeriodShares  
Aggregate purchase value of shares repurchased $ 83.3us-gaap_StockRepurchasedAndRetiredDuringPeriodValue $ 286.7us-gaap_StockRepurchasedAndRetiredDuringPeriodValue  
Authorized amount of stock repurchase program     500us-gaap_StockRepurchaseProgramAuthorizedAmount1
Amount remaining to be repurchased under the plans $ 373.4us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 $ 373.4us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1