Short-Term financing which is expected to be paid back relatively quickly, such as by a subsequent longer-term loan. Also called swing loan or bridge financing.

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Transaction Agreement (Details) - USD ($) $ in Millions		1 Months Ended	12 Months Ended
Transaction Agreement (Details) - USD ($) $ in Millions	Mar. 06, 2023	Sep. 30, 2023	Dec. 31, 2023
Business Acquisition, Contingent Consideration [Line Items]
Proceeds from issuance of senior long-term debt		$ 1,750
Debt fees and expenses, recorded as interest expense			$ 21
Vistra Operations Company LLC
Business Acquisition, Contingent Consideration [Line Items]
Facility Limit			$ 7,250
Vistra Operations Company LLC \| Acquisition Bridge Facility
Business Acquisition, Contingent Consideration [Line Items]
Bridge loan	$ 3,000
Vistra Operations Company LLC \| Term Loan B (TLB) Refinancing Bridge Facility
Business Acquisition, Contingent Consideration [Line Items]
Bridge loan	2,500
Vistra Operations Company LLC \| Refinancing Commodity-Linked Revolving Credit Facility
Business Acquisition, Contingent Consideration [Line Items]
Facility Limit	300
Transaction Agreement
Business Acquisition, Contingent Consideration [Line Items]
Business combination, cash consideration value to be transferred	3,000
Business combination, estimated aggregate equity value to be transferred	3,333
Transaction Agreement \| Energy Harbor Corp. \| Maximum \| Vistra Operations Company LLC
Business Acquisition, Contingent Consideration [Line Items]
Business combination, transactions expenses to be reimbursed	$ 100
Vistra Vision \| Transaction Agreement
Business Acquisition, Contingent Consideration [Line Items]
Equity method investment, ownership percentage	15.00%