v3.26.1
Cover
Aug. 07, 2026
Document Information [Line Items]  
Amendment Flag false
Entity Central Index Key 0001692819
Document Type 8-K
Document Period End Date Aug. 07, 2026
Entity Registrant Name VISTRA CORP.
Entity Incorporation, State or Country Code DE
Entity File Number 001-38086
Entity Tax Identification Number 36-4833255
Entity Address, Address Line One 6555 Sierra Drive,
Entity Address, City or Town Irving,
Entity Address, State or Province TX
Entity Address, Postal Zip Code 75039
City Area Code (214)
Local Phone Number 812-4600
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
NEW YORK STOCK EXCHANGE, INC.  
Document Information [Line Items]  
Title of 12(b) Security Common stock, par value $0.01 per share
Trading Symbol VST
Security Exchange Name NYSE
NYSE TEXAS, INC.  
Document Information [Line Items]  
Security Exchange Name NYSETX