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Disclosure - Interim Financial Statements link:presentationLink link:calculationLink link:definitionLink 100200 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 100300 - Disclosure - Segment and Related Information link:presentationLink link:calculationLink link:definitionLink 100400 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 100500 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 100800 - Disclosure - Acquisitions, Development and Divestitures link:presentationLink link:calculationLink link:definitionLink 100900 - Disclosure - Defined Benefits link:presentationLink link:calculationLink link:definitionLink 101000 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 101100 - Disclosure - Related Party Transactions link:presentationLink link:calculationLink link:definitionLink 101200 - Disclosure - Other Income (Expense) - net link:presentationLink link:calculationLink link:definitionLink 101300 - Disclosure - Fair Value Measurements and Credit Concentration link:presentationLink link:calculationLink link:definitionLink 101400 - Disclosure - Derivative Instruments and Hedging Activities link:presentationLink link:calculationLink link:definitionLink 101600 - Disclosure - Asset Retirement Obligations link:presentationLink link:calculationLink link:definitionLink 101700 - Disclosure - Available-for-Sale Securities link:presentationLink link:calculationLink link:definitionLink 101500 - Disclosure - Goodwill link:presentationLink link:calculationLink link:definitionLink 100700 - Disclosure - Financing Activities link:presentationLink link:calculationLink link:definitionLink 102000 - Disclosure - Variable Interest Entities link:presentationLink link:calculationLink link:definitionLink 300500 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 400500 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 301600 - Disclosure - Asset Retirement Obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 401600 - Disclosure - Asset Retirement Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 301300 - Disclosure - Fair Value Measurements and Credit Concentration (Tables) link:presentationLink link:calculationLink link:definitionLink 200200 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 400200 - Disclosure - Summary of Significant Accounting Policies (Details) link:presentationLink link:calculationLink link:definitionLink 300300 - Disclosure - Segment and Related Information (Tables) link:presentationLink link:calculationLink link:definitionLink 400300 - Disclosure - Segment and Related Information (Details) link:presentationLink link:calculationLink link:definitionLink 300400 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 400400 - Disclosure - Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 402000 - Disclosure - Variable Interest Entities (Details) link:presentationLink link:calculationLink link:definitionLink 300700 - Disclosure - Financing Activities (Tables) link:presentationLink link:calculationLink link:definitionLink 400700 - Disclosure - Financing Activities (Credit Arrangements and ST Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 300800 - Disclosure - Acquisitions, Development and Divestures (Tables) link:presentationLink link:calculationLink link:definitionLink 400800 - Disclosure - Acquisitions, Development and Divestures (Details) link:presentationLink link:calculationLink link:definitionLink 301500 - Disclosure - Goodwill (Tables) link:presentationLink link:calculationLink link:definitionLink 401500 - Disclosure - Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 301200 - Disclosure - Other Income (Expense) - net (Tables) link:presentationLink link:calculationLink link:definitionLink 401200 - Disclosure - Other Income (Expense) - net (Details) link:presentationLink link:calculationLink link:definitionLink 301700 - Disclosure - Available-for-Sale Securities (Tables) link:presentationLink link:calculationLink link:definitionLink 401700 - Disclosure - Available-for-Sale Securities (Details) link:presentationLink link:calculationLink link:definitionLink 201400 - Disclosure - Derivative Instruments and Hedging Activities (Policies) link:presentationLink link:calculationLink link:definitionLink 301400 - Disclosure - Derivative Instruments and Hedging Activities (Tables) link:presentationLink link:calculationLink link:definitionLink 300900 - Disclosure - Defined Benefits (Tables) link:presentationLink link:calculationLink link:definitionLink 400900 - Disclosure - Defined Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 301000 - Disclosure - Commitments and Contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 401000 - Disclosure - Commitments and Contingencies (Energy Purchases, Energy Sales, Other Commitments and Legal Matters) (Details) link:presentationLink link:calculationLink link:definitionLink 100080 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 100600 - Disclosure - Utility Rate Regulation link:presentationLink link:calculationLink link:definitionLink 400600 - Disclosure - Utility Rate Regulation (Details) link:presentationLink link:calculationLink link:definitionLink 401300 - Disclosure - Fair Value Measurements and Credit Concentration (Assets and Liabilities Measured on Recurring Basis Table) (Details) link:presentationLink link:calculationLink link:definitionLink 401415 - Disclosure - Derivative Instruments and Hedging Activities (Fair Values) (Details) link:presentationLink link:calculationLink link:definitionLink 401420 - Disclosure - Derivative Instruments and Hedging Activities (Gains and Losses) (Details) link:presentationLink link:calculationLink link:definitionLink 401305 - Disclosure - Fair Value Measurements and Credit Concentration (Net Asset and Liability Measured on Recurring Basis Level 3 Observable Input Reconciliation Rollforward) (Details) link:presentationLink link:calculationLink link:definitionLink 401310 - Disclosure - Fair Value Measurements and Credit Concentration (Net Asset and Liability Measured on Recurring Basis Level 3 Gain Loss Included in Earnings and Other Recurring Numeric Data) (Details) link:presentationLink link:calculationLink link:definitionLink 401315 - Disclosure - Fair Value Measurements and Credit Concentration (Nonrecurring Fair Value Measurements and Credit Concentration) (Details) link:presentationLink link:calculationLink link:definitionLink 401400 - Disclosure - Derivative Instruments and Hedging Activities (Intro) (Details) link:presentationLink link:calculationLink link:definitionLink 300600 - Disclosure - Utility Rate Regulation (Tables) link:presentationLink link:calculationLink link:definitionLink 401405 - Disclosure - Derivative Instruments and Hedging Activities (Commodity Volumetric Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 401410 - Disclosure - Derivative Instruments and Hedging Activities (Risk Disclosures) (Details) link:presentationLink link:calculationLink link:definitionLink 400705 - Disclosure - Financing Activities (LT Debt and Equity Securities) (Details) link:presentationLink link:calculationLink link:definitionLink 400710 - Disclosure - Financing Activities (Distributions and Capital Contributions) (Details) link:presentationLink link:calculationLink link:definitionLink 201300 - Disclosure - Fair Value Measurements and Credit Concentration (Policies) link:presentationLink link:calculationLink link:definitionLink 100000 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 401010 - Disclosure - Commitments and Contingencies (Guarantees and Other Assurances) (Details) link:presentationLink link:calculationLink link:definitionLink 401005 - Disclosure - Commitments and Contingencies (Environmental Matter and Other) (Details) link:presentationLink link:calculationLink link:definitionLink 101800 - Disclosure - New Accounting Guidance Pending Adoption link:presentationLink link:calculationLink link:definitionLink 401306 - Disclosure - Fair Value Measurements and Credit Concentration (Net Assets and Liabilities Measured on Recurring Basis Level 3 Significant Unobservable Inputs) (Details) link:presentationLink link:calculationLink link:definitionLink