Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings per common share:
Net income attributable to Valero stockholders	$ 8,835	$ 11,528	$ 930
Less: Income allocated to participating securities	27	43	6
Net income available to common stockholders	$ 8,808	$ 11,485	$ 924
Weighted-average common shares outstanding (shares)	353	395	407
Earnings per common share (in dollars per share)	$ 24.93	$ 29.05	$ 2.27
Earnings per common share – assuming dilution:
Net income attributable to Valero stockholders	$ 8,835	$ 11,528	$ 930
Less: Income allocated to participating securities	27	43	6
Net income available to common stockholders	$ 8,808	$ 11,485	$ 924
Weighted-average common shares outstanding (shares)	353	395	407
Effect of dilutive securities (shares)	0	1	0
Weighted-average common shares outstanding – assuming dilution (shares)	353	396	407
Earnings per common share – assuming dilution (in dollars per share)	$ 24.92	$ 29.04	$ 2.27