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Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified | 9 Months Ended
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Sep. 30, 2013
Components of Environmental Loss Accrual [Abstract] |
Accrual For Environmental Loss Contingencies | $ 15
Accrued Environmental Loss Contingencies Current | 9
Federal Superfund and comparable state-managed sites | 5
Formerly owned or operated sites | 7
Owned or controlled sites at which Company operations have been discontinued | 2
Sites utilized by the company in its ongoing operations | 1
Loss Contingency, Estimate [Abstract] |
Loss contingency maximum possible loss | 8
Tungsten Materials Business |
Loss Contingency, Estimate [Abstract] |
Conditional asset retirement obligation costs, Idenmity Maximum | 13
Conditional asset retirement obligation costs, Unreserved portion of Maximum | $ 9.5

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