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Pensions and Other Postretirement Benefit Plans (Narrative) (Details) $ in Millions | Dec. 31, 2016 USD ($)
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Canada [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Accrued postretirement liability | $ 56.5
United States [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Accrued postretirement liability | $ 1.0
United States Pension Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Percent of consolidated pension plan assets | 43.00%
Percent of consolidated pension plan obligations | 44.00%

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- Definition Defined Benefit Plan, Weighted Average Pension Obligations. + References No definition available. + Details
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Balance Type: | na
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Balance Type: | na
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The total amount of the entity's obligation as of the balance sheet date under any other retirement plan(s), such as one or more defined contribution plans. + References No definition available. + Details
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- Details
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- Details
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- Details
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