XML 20 R9.htm IDEA: XBRL DOCUMENT v3.4.0.3
Regulatory Accounting
9 Months Ended
Sep. 30, 2015
regulatory accounting [Abstract]  
Regulatory Matters [Text Block]
Regulatory Accounting

As of September 30, 2015, CenterPoint Houston has not recognized an allowed equity return of $405 million because such return will be recognized as it is recovered in rates.  During the three months ended September 30, 2015 and 2014, CenterPoint Houston recognized approximately $16 million and $20 million, respectively, of the allowed equity return not previously recognized. During the nine months ended September 30, 2015 and 2014, CenterPoint Houston recognized approximately $37 million and $52 million, respectively, of the allowed equity return not previously recognized.