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, 2022	$ 25,468	$ 23,561	$ 7	$ 6,863	$ (20,197)	$ 38,247	$ (1,359)	$ 1,907
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income	5,268	5,011				5,011		257
Dividends on common stock	(746)	(746)				(746)
Stock-based compensation expense	53	53		53
Transactions in connection with stock-based compensation plans	1	1		(27)	28
Purchases of common stock for treasury	(2,417)	(2,417)			(2,417)
Contributions from noncontrolling interests	75							75
Distributions to noncontrolling interests	(101)							(101)
Other comprehensive income (loss)	393	388					388	5
Balance as of end of period at Jun. 30, 2023	27,994	25,851	7	6,889	(22,586)	42,512	(971)	2,143
Balance as of beginning of period at Mar. 31, 2023	27,067	24,977	7	6,877	(21,637)	40,935	(1,205)	2,090
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income	2,122	1,944				1,944		178
Dividends on common stock	(367)	(367)				(367)
Stock-based compensation expense	14	14		14
Transactions in connection with stock-based compensation plans	0	0		(2)	2
Purchases of common stock for treasury	(951)	(951)			(951)
Distributions to noncontrolling interests	(101)							(101)
Other comprehensive income (loss)	210	234					234	(24)
Balance as of end of period at Jun. 30, 2023	27,994	25,851	7	6,889	(22,586)	42,512	(971)	2,143
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
Conversion of IEnova Revolver debt to equity (see Notes 4 and 6)	457
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, 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