Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings per common share:
Net income attributable to Valero stockholders	$ 2,770	$ 8,835	$ 11,528
Less: Income allocated to participating securities	8	27	43
Net income available to common stockholders	$ 2,762	$ 8,808	$ 11,485
Weighted-average common shares outstanding (shares)	322	353	395
Earnings per common share (in dollars per share)	$ 8.58	$ 24.93	$ 29.05
Earnings per common share – assuming dilution:
Net income attributable to Valero stockholders	$ 2,770	$ 8,835	$ 11,528
Less: Income allocated to participating securities	8	27	43
Net income available to common stockholders	$ 2,762	$ 8,808	$ 11,485
Weighted-average common shares outstanding (shares)	322	353	395
Effect of dilutive securities (shares)	0	0	1
Weighted-average common shares outstanding – assuming dilution (shares)	322	353	396
Earnings per common share – assuming dilution (in dollars per share)	$ 8.58	$ 24.92	$ 29.04