Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Earnings per common share:
Net income attributable to Valero stockholders	$ 1,245	$ 3,067
Less: Income allocated to participating securities	3	10
Net income available to common stockholders	$ 1,242	$ 3,057
Weighted-average common shares outstanding (in shares)	331	369
Earnings per common share (in dollars per share)	$ 3.75	$ 8.30
Earnings per common share – assuming dilution:
Net income attributable to Valero stockholders	$ 1,245	$ 3,067
Less: Income allocated to participating securities	3	10
Net income available to common stockholders	$ 1,242	$ 3,057
Weighted-average common shares outstanding (in shares)	331	369
Effect of dilutive securities (in shares)	0	0
Weighted-average common shares outstanding – assuming dilution (in shares)	331	369
Earnings per common share – assuming dilution (in dollars per share)	$ 3.75	$ 8.29