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	2,256	2,125				2,125		131
Dividends on common stock	(703)	(703)				(703)
Stock-based compensation expense	52	52		52
Transactions in connection with stock-based compensation plans	1	1		(24)	25
Purchases of common stock for treasury	(2,076)	(2,076)			(2,076)
Contributions from noncontrolling interests	90							90
Distributions to noncontrolling interests	(2)							(2)
Conversion of IEnova Revolver debt to equity (see Notes 4 and 6)	457							457
Other comprehensive income (loss)	(349)	(302)					(302)	(47)
Balance as of end of period at Jun. 30, 2024	28,250	25,443	7	6,929	(27,373)	47,052	(1,172)	2,807
Balance as of beginning of period at Mar. 31, 2024	28,824	26,057	7	6,916	(26,330)	46,519	(1,055)	2,767
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income	926	880				880		46
Dividends on common stock	(347)	(347)				(347)
Stock-based compensation expense	13	13		13
Purchases of common stock for treasury	(1,043)	(1,043)			(1,043)
Distributions to noncontrolling interests	(2)							(2)
Other comprehensive income (loss)	(121)	(117)					(117)	(4)
Balance as of end of period at Jun. 30, 2024	28,250	25,443	7	6,929	(27,373)	47,052	(1,172)	2,807
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	11	119				119		(108)
Dividends on common stock	(710)	(710)				(710)
Stock-based compensation expense	50	50		50
Transactions in connection with stock-based compensation plans	1	1		(33)	34
Purchases of common stock for treasury	(613)	(613)			(613)
Contributions from noncontrolling interests	97							97
Distributions to noncontrolling interests	(131)							(131)
Other comprehensive income (loss)	721	719					719	2
Balance as of end of period at Jun. 30, 2025	26,947	24,078	7	6,956	(28,757)	46,425	(553)	2,869
Balance as of beginning of period at Mar. 31, 2025	26,315	23,490	7	6,944	(28,417)	46,065	(1,109)	2,825
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income	663	714				714		(51)
Dividends on common stock	(354)	(354)				(354)
Stock-based compensation expense	13	13		13
Transactions in connection with stock-based compensation plans	0	0		(1)	1
Purchases of common stock for treasury	(341)	(341)			(341)
Contributions from noncontrolling interests	97							97
Distributions to noncontrolling interests	(2)							(2)
Other comprehensive income (loss)	556	556					556
Balance as of end of period at Jun. 30, 2025	$ 26,947	$ 24,078	$ 7	$ 6,956	$ (28,757)	$ 46,425	$ (553)	$ 2,869