Indebtedness (Schedule of Debt) (Details) (USD $)	Mar. 31, 2015	Mar. 31, 2014
Debt Instrument [Line Items]
Short-term debt	$ 325,871,000us-gaap_ShortTermBorrowings	$ 387,866,000us-gaap_ShortTermBorrowings
Long-term debt	1,998,772,000us-gaap_LongTermDebt	2,107,096,000us-gaap_LongTermDebt
Less current portion of long-term debt	(250,110,000)us-gaap_LongTermDebtCurrent	(400,322,000)us-gaap_LongTermDebtCurrent
Long-term debt, excluding current portion	1,748,662,000us-gaap_LongTermDebtNoncurrent	1,706,774,000us-gaap_LongTermDebtNoncurrent
Total debt	2,324,643,000	2,494,962,000
Money market loans [Member]
Debt Instrument [Line Items]
Short-term debt	0	0
Commercial paper [Member]
Debt Instrument [Line Items]
Short-term debt	325,871,000	387,866,000
Trade receivables securitization [Member]
Debt Instrument [Line Items]
Long-term debt	295,000,000	295,000,000
Revolving credit borrowings - U.S. [Member]
Debt Instrument [Line Items]
Long-term debt	0	0
Revolving credit borrowings - Multi-currency [Member]
Debt Instrument [Line Items]
Long-term debt	48,332,000	54,230,000
Revolving credit borrowings - France [Member]
Debt Instrument [Line Items]
Long-term debt	6,277,000	8,056,000
Senior notes, net [Member]
Debt Instrument [Line Items]
Long-term debt	1,648,608,000	1,748,774,000
Other long-term debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 555,000	$ 1,036,000

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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