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Subsequent Events (CenterPoint Energy)
6 Months Ended
Jun. 30, 2022
Subsequent Events [Abstract]  
Subsequent Events (CenterPoint Energy) Subsequent Events (CenterPoint Energy) CenterPoint Energy Dividend Declarations
Equity InstrumentDeclaration DateRecord DatePayment DatePer Share
Common StockJuly 21, 2022August 18, 2022September 8, 2022$0.1800 
Series A Preferred StockJuly 21, 2022August 15, 2022September 1, 2022$30.6250