Subsequent Events (Tables)

12 Months Ended

Dec. 31, 2019

Subsequent Events [Abstract]

Schedule of Subsequent Events [Table Text Block]

CenterPoint Energy Dividend Declarations (CenterPoint Energy)

Equity Instrument	Declaration Date	Record Date	Payment Date	Per Share
Common Stock	February 3, 2020	February 20, 2020	March 12, 2020	$	0.2900
Series A Preferred Stock	February 3, 2020	February 14, 2020	March 2, 2020	30.6250
Series B Preferred Stock	February 3, 2020	February 14, 2020	March 2, 2020	17.5000

Enable Distributions Declarations (CenterPoint Energy)

Equity Instrument	Declaration Date	Record Date	Payment Date	Per Unit Distribution		Expected Cash Distribution
						(in millions)
Enable common units	February 7, 2020	February 18, 2020	February 25, 2020	$	0.3305	$	77
Enable Series A Preferred Units	February 7, 2020	February 7, 2020	February 14, 2020	0.6250		9