0000001 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Condensed Consolidated Statements of Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Consolidated Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Consolidated Statements of Changes in Shareholders' Equity Statement link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Consolidated Statements of Changes in Shareholders' Equity Statement (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Description of Business link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Basis of Presentation link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Asset Acquisition link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Revenue Revenue link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Operating Assets and Facilities link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Variable Interest Entities link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Fair Value Disclosure link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Pension and Other Post-Retirement Benefits link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Share-Based Compensation link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Commercial Commitments link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Accumulated Other Comprehensive Income (Loss) link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Non-Controlling Interest link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Legal Proceedings and Other Contingencies link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Financial Data of Business Segments link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Operating Assets and Facilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - 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Disclosure - Fair Value Disclosure Fair Value Disclosure - Amounts Recorded on Balance Sheet Related to Cumulative Basis Adjustments (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Fair Value Disclosure Fair Value Disclosure - Impacts of Derivative Instrument on Statement of Comprehensive Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Fair Value Disclosure Fair Value Disclosure - Impact of Cash Flow and Hedge Accounting Relationships (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Fair Value Disclosure Fair Value Disclosure - Other Financial Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Pension and Other Post-Retirement Benefits - Components of Net Periodic Cost (Benefit) (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Share Based Compensation - Weighted Average and Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Share Based Compensation - Outstanding Options and Rights (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Share Based Compensation - Aggregate Intrinsic Value (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Share-Based Compensation Share-Based Compensation - Restricted Stock and Performance Shares (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Share Based Compensation (Details Textual) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Income Taxes (Details Textual) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Commercial Commitments (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Commercial Commitments (Details Textual) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Non-Controlling Interest - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Non-Controlling Interest - Schedule of Changes (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Financial Data of Business Segments (Details) link:presentationLink link:calculationLink link:definitionLink