Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Operating revenues	$ 17,224	$ 14,779	$ 13,728
Fuel, purchased power costs, and delivery fees	(7,285)	(7,557)	(10,401)
Operating costs	(2,414)	(1,702)	(1,645)
Depreciation and amortization	(1,843)	(1,502)	(1,596)
Selling, general, and administrative expenses	(1,601)	(1,308)	(1,189)
Impairment of long-lived and other assets	0	(49)	(74)
Operating income (loss)	4,081	2,661	(1,177)
Other income	312	257	117
Other deductions	(21)	(14)	(4)
Interest expense and related charges	(900)	(740)	(368)
Impacts of Tax Receivable Agreement	(5)	(164)	(128)
Net income (loss) before income taxes	3,467	2,000	(1,560)
Income tax expense	(655)	(508)	350
Net income (loss)	2,812	1,492	(1,210)
Net (income) loss attributable to noncontrolling interest and redeemable noncontrolling interest	(153)	1	(17)
Net income (loss) attributable to Vistra	2,659	1,493	(1,227)
Cumulative dividends attributable to preferred stock	(192)	(150)	(150)
Net income (loss) attributable to Vistra common stock	$ 2,467	$ 1,343	$ (1,377)
Weighted average shares of common stock outstanding:
Basic (in shares)	344,788,634	369,771,359	422,447,074
Diluted (in shares)	352,567,060	375,193,110	422,447,074
Net income (loss) per weighted average share of common stock outstanding:
Basic (in dollars per share)	$ 7.16	$ 3.63	$ (3.26)
Diluted (in dollars per share)	$ 7.00	$ 3.58	$ (3.26)