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	$ 18.7us-gaap_InvestmentIncomeInterest	$ 17.6us-gaap_InvestmentIncomeInterest	$ 20.0us-gaap_InvestmentIncomeInterest
Interest expense	76.4us-gaap_InterestExpense	79.9us-gaap_InterestExpense	68.9us-gaap_InterestExpense
Gains on foreign exchange transactions	$ 19.7	$ 11.8	$ 19.9

Amount before tax of foreign currency transaction realized and unrealized gain recognized in the income statement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 830

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6450189&loc=d3e30690-110894

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 830

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6450222&loc=d3e30840-110895

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 830

-SubTopic 20

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6450189&loc=d3e30700-110894

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration