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Rate and Regulatory Matters (Notes)
3 Months Ended
Mar. 31, 2019
Public Utilities, Rate Matters [Abstract]  
Public Utilities, Disclosure of Rate Matters [Text Block]
RATE AND REGULATORY MATTERS
FERC Developments
On March 21, 2019, the FERC issued a Notice of Inquiry (NOI) in Docket No. PL19-4-000, seeking comments regarding whether and, if so, how FERC should revise its policies for determining the base return on equity (ROE) used in setting rates charged by jurisdictional public utilities. FERC also seeks comment on, among other things, whether FERC should change its ROE policies for interstate natural gas and oil pipelines to align with its policy for electric public utilities. FERC’s action follows a decision from the United States Court of Appeals for the District of Columbia Circuit, which vacated and remanded a series of earlier FERC orders establishing a new base ROE for certain electric transmission owners.  Following that decision, FERC proposed in the remanded proceedings that it rely on four financial models to establish ROEs for the affected utilities rather than rely primarily on its long-used, two-step Discounted Cash Flow model. In the NOI, FERC poses a series of questions and invites comments on this proposed new approach, including whether it should apply the new approach to future proceedings involving interstate natural gas and oil pipeline ROEs. Comments in response to the NOI are due on June 26, 2019, with reply comments due on July 26, 2019. We currently are monitoring this proceeding. Our next general rate case must be filed for new rates to become effective no later than January 1, 2023.