Other Matters (Details) $ in Millions	Sep. 30, 2015 USD ($)
Tax Year 1997 and 1998 [Member] \| Brazil state operating tax [Member]
Loss Contingencies [Line Items]
Tax amounts assessed but not reserved	$ 5

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration