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Pension And Other Postretirement Benefits (Narrative) (Details) $ in Millions | 9 Months Ended
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Sep. 30, 2016 USD ($)
Pension Plan |
Defined Benefit Plan Disclosure [Line Items] |
Employer contributions | $ 2.7
Other Postretirement Benefit Plan |
Defined Benefit Plan Disclosure [Line Items] |
Employer contributions | $ 18.6

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