Consolidated Statements of Equity - 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, 2018	$ 22,731	$ 21,667	$ 7	$ 7,048	$ (14,925)	$ 31,044	$ (1,507)	$ 1,064
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income (loss)	2,784	2,422				2,422		362
Dividends on common stock	(1,492)	(1,492)				(1,492)
Stock-based compensation expense	77	77		77
Transactions in connection with stock-based compensation plans	(20)	(20)		(50)	30
Open market stock purchases	(753)	(753)			(753)
Acquisition of Valero Energy Partners LP (VLP) publicly held common units	(950)	(328)		(328)				(622)
Distributions to noncontrolling interests	(70)							(70)
Other	74	74		74		0		0
Other comprehensive income (loss)	155	156					156	(1)
Balance as of end of period at Dec. 31, 2019	22,536	21,803	7	6,821	(15,648)	31,974	(1,351)	733
Increase (Decrease) in Stockholders' Equity Roll Forward
Net income (loss)	(1,107)	(1,421)				(1,421)		314
Dividends on common stock	(1,600)	(1,600)				(1,600)
Stock-based compensation expense	76	76		76
Transactions in connection with stock-based compensation plans	(24)	(24)		(83)	59
Open market stock purchases	(130)	(130)			(130)
Distributions to noncontrolling interests	(208)							(208)
Other comprehensive income (loss)	99	97					97	2
Balance as of end 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 (loss)	1,288	930				930		358
Dividends on common stock	(1,602)	(1,602)				(1,602)
Stock-based compensation expense	80	80		80
Transactions in connection with stock-based compensation plans	(25)	(25)		(67)	42
Contributions from noncontrolling interests	189							189
Distributions to noncontrolling interests	(2)							(2)
Other comprehensive income (loss)	247	246					246	1
Balance as of end of period at Dec. 31, 2021	$ 19,817	$ 18,430	$ 7	$ 6,827	$ (15,677)	$ 28,281	$ (1,008)	$ 1,387