Commitments and Contingencies (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended							3 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014 Other long-term liabilities [Member]	Mar. 31, 2014 Other long-term liabilities [Member]	Jun. 30, 2014 Accrued expenses and other current liabilities [Member]	Jun. 30, 2014 Brazil tax matters [Member]	Mar. 31, 2014 Brazil tax matters [Member]	Jun. 30, 2014 Brazil tax matters [Member] Other long-term liabilities [Member]	Jun. 30, 2013 Brazil tax matters [Member] Other long-term liabilities [Member]	Jun. 30, 2014 Brazil tax matters [Member] Accrued expenses and other current liabilities [Member]	Jun. 30, 2013 Brazil tax matters [Member] Accrued expenses and other current liabilities [Member]	Jun. 30, 2014 Brazil tax matters [Member] Other long-term assets - third parties [Member]	Jun. 30, 2013 Brazil tax matters [Member] Other long-term assets - third parties [Member]	Jun. 30, 2014 Brazilian Tax Authorities and Other Third Parties [Member]	Jun. 30, 2013 Brazilian Tax Authorities and Other Third Parties [Member]	Jun. 30, 2014 Restructuring Action [Member]
Loss Contingencies [Line Items]
Estimated range of loss, minimum	$ 0
Estimated range of loss, maximum	90
Accrual for Environmental Loss Contingencies [Abstract]
Accrual for environmental loss contingencies	7																	18
Accrual for environmental loss contingencies, noncurrent	25				22	21
Accrual for environmental loss contingencies, current							3
Loss Contingency Accrual [Abstract]
Cash deposits														7	6
Period for settlement payments								180 months
Settlement liabilities								109	107	98	96	11	11			19	18
Loss on Brazilian tax litigation, net	$ (2)	[1]	$ (1)	[1]

[1] (B)See Note 16 – Commitments and Contingencies – Brazil Tax and Legal Matters for further details.