Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Parenthetical)

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Consolidated Balance Sheets (Parenthetical)
In Millions, except Share data, unless otherwise specified
Mar. 31, 2014
USD ($)
Mar. 31, 2014
EUR (€)
Mar. 31, 2013
USD ($)
Mar. 31, 2013
EUR (€)
Statement Of Financial Position [Abstract]        
Allowance for doubtful accounts, net $ 1.0   $ 2.1  
Common stock, par value   € 0.59   € 0.59
Common stock, shares authorised 2,000,000,000 2,000,000,000 2,000,000,000 2,000,000,000
Common stock, shares issued 445,033,502 445,033,502 441,644,484 441,644,484