Consolidated Statements of Equity (unaudited) - USD ($) $ in Millions	Total	Valero Energy Corporation Stockholders' Equity [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Non-controlling Interests [Member]
Balance as of beginning of period at Dec. 31, 2023	$ 28,524	$ 26,346	$ 7	$ 6,901	$ (25,322)	$ 45,630	$ (870)	$ 2,178
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income (loss)	1,330	1,245				1,245		85
Dividends on common stock	(356)	(356)				(356)
Stock-based compensation expense	39	39		39
Transactions in connection with stock-based compensation plans	1	1		(24)	25
Purchases of common stock for treasury	(1,033)	(1,033)			(1,033)
Contributions from noncontrolling interests	90							90
Conversion of IEnova Revolver debt to equity (see Notes 4 and 6)	457							457
Other comprehensive income (loss)	(228)	(185)					(185)	(43)
Balance as of end of period at Mar. 31, 2024	28,824	26,057	7	6,916	(26,330)	46,519	(1,055)	2,767
Balance as of beginning of period at Dec. 31, 2024	27,521	24,512	7	6,939	(28,178)	47,016	(1,272)	3,009
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income (loss)	(652)	(595)				(595)		(57)
Dividends on common stock	(356)	(356)				(356)
Stock-based compensation expense	37	37		37
Transactions in connection with stock-based compensation plans	1	1		(32)	33
Purchases of common stock for treasury	(272)	(272)			(272)
Distributions to noncontrolling interests	(129)							(129)
Other comprehensive income (loss)	165	163					163	2
Balance as of end of period at Mar. 31, 2025	$ 26,315	$ 23,490	$ 7	$ 6,944	$ (28,417)	$ 46,065	$ (1,109)	$ 2,825