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Disclosure - Pension and Other Retirement Plans (Tables)link:presentationLinklink:calculationLinklink:definitionLink30603 - Disclosure - Shareholders' Equity (Tables)link:presentationLinklink:calculationLinklink:definitionLink30703 - Disclosure - Earnings Per Share (Tables)link:presentationLinklink:calculationLinklink:definitionLink30903 - Disclosure - Supplemental Cash Flow Data (Tables)link:presentationLinklink:calculationLinklink:definitionLink40101 - Disclosure - Significant Accounting Policies and Recently Issued Accounting Standards (Narrative) (Details)link:presentationLinklink:calculationLinklink:definitionLink40102 - Disclosure - Significant Accounting Policies and Recently Issued Accounting Standards (Property, Plant and Equipment by Type) (Details)link:presentationLinklink:calculationLinklink:definitionLink40201 - Disclosure - Revenue (Narrative) (Details)link:presentationLinklink:calculationLinklink:definitionLink40203 - Disclosure - Revenue (Disaggregated by Revenue Source) (Details)link:presentationLinklink:calculationLinklink:definitionLink40301 - 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Disclosure - Earnings Per Share (Narrative) (Details)link:presentationLinklink:calculationLinklink:definitionLink40702 - Disclosure - Earnings Per Share (Schedule of Earnings Per Share Reconciliation) (Details)link:presentationLinklink:calculationLinklink:definitionLink40801 - Disclosure - Commitments and Contingencies (Narrative) (Details)link:presentationLinklink:calculationLinklink:definitionLink40901 - Disclosure - Supplemental Cash Flow Data (Supplemental Disclosures of Cash Flows) (Details)link:presentationLinklink:calculationLinklink:definitionLink41001 - Disclosure - Disposal of Assets (Narrative) (Details)link:presentationLinklink:calculationLinklink:definitionLink41101 - Disclosure - Subsequent Events (Narrative) (Details)link:presentationLinklink:calculationLinklink:definitionLink