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, 2020	$ 19,642	$ 18,801	$ 7	$ 6,814	$ (15,719)	$ 28,953	$ (1,254)	$ 841
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income	178	(79)				(79)		257
Dividends on common stock	(1,201)	(1,201)				(1,201)
Stock-based compensation expense	52	52		52
Transactions in connection with stock-based compensation plans	2	2		(36)	38
Purchases of common stock for treasury	(15)	(15)			(15)
Contributions from noncontrolling interests	25							25
Distributions to noncontrolling interests	(2)							(2)
Other comprehensive income (loss)	(92)	(84)					(84)	(8)
Balance as of end of period at Sep. 30, 2021	18,589	17,476	7	6,830	(15,696)	27,673	(1,338)	1,113
Balance as of beginning of period at Jun. 30, 2021	18,704	17,651	7	6,819	(15,696)	27,610	(1,089)	1,053
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income	508	463				463		45
Dividends on common stock	(400)	(400)				(400)
Stock-based compensation expense	11	11		11
Contributions from noncontrolling interests	25							25
Other comprehensive income (loss)	(259)	(249)					(249)	(10)
Balance as of end of period at Sep. 30, 2021	18,589	17,476	7	6,830	(15,696)	27,673	(1,338)	1,113
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