Regulatory Accounting

6 Months Ended

Jun. 30, 2013

Regulatory Matters [Abstract]

Regulatory Matters [Text Block]

Regulatory Accounting

As of June 30, 2013, CenterPoint Houston has not recognized an allowed equity return of $533 million because such return will be recognized as it is recovered in rates. During the three months ended June 30, 2012 and 2013, CenterPoint Houston recognized approximately $13 million and $12 million, respectively, of the allowed equity return not previously recognized.   During the six months ended June 30, 2012 and 2013, CenterPoint Houston recognized approximately $21 million and $20 million, respectively, of the allowed equity return not previously recognized.