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Fair Values (Details Textuals) (Fair Value, Measurements, Nonrecurring [Member], USD $)
In Millions, unless otherwise specified |
Sep. 30, 2013
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Dec. 31, 2012
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|---|---|---|
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Fair Value, Measurements, Nonrecurring [Member]
|
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| Fair Value Assets Measured On Recurring Basis Financial Statement Captions [Line Items] | ||
| Assets measured at fair value for impairment | $ 0 | $ 0 |