0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Condensed Consolidated Statements of Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Condensed Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Condensed Consolidated Balance Sheets (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Unaudited) link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Summary of Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Calculation of Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Revenue Recognition link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Rates and Other Regulatory Activities link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Environmental Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Other Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Segment Information link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Employee Benefit Plans link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Share-Based Compensation link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Derivative Instruments link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Fair Value of Financial Instruments link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Long-Term Debt link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Short-Term Borrowings link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Summary of Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Calculation of Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Revenue Recognition (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Stockholder's Equity (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Share-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Derivative Instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Fair Value of Financial Instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Long-Term Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Calculation of Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Revenue Recognition - Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Revenue Recognition - Contract Balances with Customers (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Revenue Recognition - Remaining Performance Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Revenue Recognition - Remaining Performance Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Rates and Other Regulatory Activities (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Environmental Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Other Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Segment Information - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Segment Information - Schedule of Segment Reporting Information by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Shareholders' Equity - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Stockholder's Equity - Changes in Accumulated Other Comprehensive Loss (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Employee Benefit Plans (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Share-Based Compensation - Share-Based Payment Arrangement, Cost by Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Share-Based Compensation - Schedule of Share-based Compensation, Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Share-Based Compensation - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Derivative Instruments - Volume of Derivative Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Derivative Instruments - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Fair Value of Financial Instruments - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Fair Value of Financial Instruments - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Long-Term Debt - Outstanding Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Long-Term Debt - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Short-Term Borrowings (Details) link:presentationLink link:calculationLink link:definitionLink