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	8,647	8,415				8,415		232
Dividends on common stock	(1,186)	(1,186)				(1,186)
Stock-based compensation expense	60	60		60
Transactions in connection with stock-based compensation plans	2	2		(29)	31
Purchases of common stock for treasury	(2,820)	(2,820)			(2,820)
Contributions from noncontrolling interests	240							240
Distributions to noncontrolling interests	(93)							(93)
Other comprehensive income (loss)	(952)	(989)					(989)	37
Balance as of end of period at Sep. 30, 2022	23,715	21,912	7	6,858	(18,466)	35,510	(1,997)	1,803
Balance as of beginning of period at Jun. 30, 2022	22,733	20,969	7	6,845	(17,537)	33,079	(1,425)	1,764
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income	2,912	2,817				2,817		95
Dividends on common stock	(386)	(386)				(386)
Stock-based compensation expense	13	13		13
Transactions in connection with stock-based compensation plans	(1)	(1)			(1)
Purchases of common stock for treasury	(928)	(928)			(928)
Distributions to noncontrolling interests	(90)							(90)
Other comprehensive income (loss)	(538)	(572)					(572)	34
Balance as of end of period at Sep. 30, 2022	23,715	21,912	7	6,858	(18,466)	35,510	(1,997)	1,803
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	7,931	7,633				7,633		298
Dividends on common stock	(1,106)	(1,106)				(1,106)
Stock-based compensation expense	68	68		68
Transactions in connection with stock-based compensation plans	7	7		(31)	38
Purchases of common stock for treasury	(4,222)	(4,222)			(4,222)
Contributions from noncontrolling interests	75							75
Distributions to noncontrolling interests	(164)							(164)
Other comprehensive income (loss)	0	34					34	(34)
Balance as of end of period at Sep. 30, 2023	28,057	25,975	7	6,900	(24,381)	44,774	(1,325)	2,082
Balance as of beginning of period at Jun. 30, 2023	27,994	25,851	7	6,889	(22,586)	42,512	(971)	2,143
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income	2,663	2,622				2,622		41
Dividends on common stock	(360)	(360)				(360)
Stock-based compensation expense	15	15		15
Transactions in connection with stock-based compensation plans	6	6		(4)	10
Purchases of common stock for treasury	(1,805)	(1,805)			(1,805)
Distributions to noncontrolling interests	(63)							(63)
Other comprehensive income (loss)	(393)	(354)					(354)	(39)
Balance as of end of period at Sep. 30, 2023	$ 28,057	$ 25,975	$ 7	$ 6,900	$ (24,381)	$ 44,774	$ (1,325)	$ 2,082