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, 2021	$ 19,817	$ 18,430	$ 7	$ 6,827	$ (15,677)	$ 28,281	$ (1,008)	$ 1,387
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income	5,735	5,598				5,598		137
Dividends on common stock	(800)	(800)				(800)
Stock-based compensation expense	47	47		47
Transactions in connection with stock-based compensation plans	3	3		(29)	32
Purchases of common stock for treasury	(1,892)	(1,892)			(1,892)
Contributions from noncontrolling interests	240							240
Distributions to noncontrolling interests	(3)							(3)
Other comprehensive income (loss)	(414)	(417)					(417)	3
Balance as of end of period at Jun. 30, 2022	22,733	20,969	7	6,845	(17,537)	33,079	(1,425)	1,764
Balance as of beginning of period at Mar. 31, 2022	20,410	18,821	7	6,832	(15,794)	28,785	(1,009)	1,589
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income	4,768	4,693				4,693		75
Dividends on common stock	(399)	(399)				(399)
Stock-based compensation expense	15	15		15
Transactions in connection with stock-based compensation plans	3	3		(2)	5
Purchases of common stock for treasury	(1,748)	(1,748)			(1,748)
Contributions from noncontrolling interests	75							75
Distributions to noncontrolling interests	(1)							(1)
Other comprehensive income (loss)	(390)	(416)					(416)	26
Balance as of end of period at Jun. 30, 2022	22,733	20,969	7	6,845	(17,537)	33,079	(1,425)	1,764
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			(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