Pension and Other Postretirement Benefit (Narrative) (Details) $ in Millions	3 Months Ended
Mar. 31, 2016 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year	$ 10.2
Pension and Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year	$ 1.1

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