Background	12 Months Ended
Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	Background CenterPoint Energy Houston Electric, LLC (CenterPoint Houston) engages in the electric transmission and distribution business in the Texas Gulf Coast area that includes the city of Houston. CenterPoint Houston is an indirect, wholly-owned subsidiary of CenterPoint Energy, Inc. (CenterPoint Energy), a public utility holding company. As of December 31, 2015, CenterPoint Houston had the following subsidiaries: CenterPoint Energy Transition Bond Company, LLC, CenterPoint Energy Transition Bond Company II, LLC, CenterPoint Energy Transition Bond Company III, LLC, CenterPoint Energy Restoration Bond Company, LLC and CenterPoint Energy Transition Bond Company IV, LLC (Bond Company IV) (collectively, the transition and system restoration bond companies). Each is a special purpose Delaware limited liability company formed solely for the purpose of purchasing and owning transition or system restoration property through the issuance of transition bonds or system restoration bonds and activities incidental thereto. Because CenterPoint Houston is an indirect, wholly-owned subsidiary of CenterPoint Energy, CenterPoint Houston’s determination of reportable business segments considers the strategic operating units under which CenterPoint Energy manages sales, allocates resources and assesses performance of various products and services to wholesale or retail customers in differing regulatory environments. The accounting policies of the business segments are the same as those described in the summary of significant accounting policies except that some executive benefit costs have not been allocated to CenterPoint Houston. CenterPoint Houston uses operating income as the measure of profit or loss for its business segments. CenterPoint Houston consists of a single reportable segment: Electric Transmission & Distribution.

Background

12 Months Ended

Dec. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

Background

CenterPoint Energy Houston Electric, LLC (CenterPoint Houston) engages in the electric transmission and distribution business in the Texas Gulf Coast area that includes the city of Houston. CenterPoint Houston is an indirect, wholly-owned subsidiary of CenterPoint Energy, Inc. (CenterPoint Energy), a public utility holding company. As of December 31, 2015, CenterPoint Houston had the following subsidiaries: CenterPoint Energy Transition Bond Company, LLC, CenterPoint Energy Transition Bond Company II, LLC, CenterPoint Energy Transition Bond Company III, LLC, CenterPoint Energy Restoration Bond Company, LLC and CenterPoint Energy Transition Bond Company IV, LLC (Bond Company IV) (collectively, the transition and system restoration bond companies). Each is a special purpose Delaware limited liability company formed solely for the purpose of purchasing and owning transition or system restoration property through the issuance of transition bonds or system restoration bonds and activities incidental thereto.

Because CenterPoint Houston is an indirect, wholly-owned subsidiary of CenterPoint Energy, CenterPoint Houston’s determination of reportable business segments considers the strategic operating units under which CenterPoint Energy manages sales, allocates resources and assesses performance of various products and services to wholesale or retail customers in differing regulatory environments. The accounting policies of the business segments are the same as those described in the summary of significant accounting policies except that some executive benefit costs have not been allocated to CenterPoint Houston. CenterPoint Houston uses operating income as the measure of profit or loss for its business segments. CenterPoint Houston consists of a single reportable segment: Electric Transmission & Distribution.