Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Sep. 30, 2013
Income Tax Disclosure [Line Items]
Undistributed earnings of foreign subsidiaries	$ 15
Operating loss carryforward	15
Valuation allowance	$ 7
Foreign operating loss carryforwards expiration date	2031
Decrease in unrecognized tax benefits due to expiration of certain statutes of limitations	1.00%

The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized.

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+ Details