v3.26.1
Cover
Apr. 16, 2026
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Apr. 16, 2026
Current Fiscal Year End Date --12-31
Entity File Number 1-31447
Entity Registrant Name CENTERPOINT ENERGY, INC.
Entity Central Index Key 0001130310
Entity Tax Identification Number 74-0694415
Entity Incorporation, State or Country Code TX
Entity Address, Address Line One 1111 Louisiana
Entity Address, City or Town Houston
Entity Address, State or Province TX
Entity Address, Postal Zip Code 77002
City Area Code 713
Local Phone Number 207-1111
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.01 par value
Trading Symbol CNP
Security Exchange Name NYSE
Entity Emerging Growth Company false