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Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2014
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Text Block]	Income Taxes The effective tax rate reported for both the three and six months ended June 30, 2014 was 37% compared to 37% and 36%, respectively, for the same periods in 2013. CenterPoint Houston reported no uncertain tax liability as of June 30, 2014 and expects no significant change to the uncertain tax liability over the next twelve months ending June 30, 2015. CenterPoint Energy’s consolidated federal income tax return filed for the year ended December 31, 2012 is currently under audit by the Internal Revenue Service and all consolidated federal income tax returns have been audited and settled through the tax year 2011.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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