Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues	[1]	$ 108,324	$ 117,033	$ 93,980
Cost of sales:
Cost of materials and other		96,476	104,732	83,037
Operating expenses (excluding depreciation and amortization expense reflected below)		4,868	4,690	4,504
Depreciation and amortization expense		2,202	2,017	1,934
Total cost of sales		103,546	111,439	89,475
Other operating expenses		21	45	61
General and administrative expenses (excluding depreciation and amortization expense reflected below)		868	925	829
Depreciation and amortization expense		53	52	52
Operating income (loss)		3,836	4,572	3,563
Other income, net		104	130	112
Interest and debt expense, net of capitalized interest		(454)	(470)	(468)
Income before income tax expense (benefit)		3,486	4,232	3,207
Income tax expense (benefit)		702	879	(949)
Net income		2,784	3,353	4,156
Less: Net income attributable to noncontrolling interests		362	231	91
Net income attributable to Valero Energy Corporation stockholders		$ 2,422	$ 3,122	$ 4,065
Earnings per common share (in usd per share)		$ 5.84	$ 7.30	$ 9.17
Weighted-average common shares outstanding (shares)		413	426	442
Earnings per common share – assuming dilution (in usd per share)		$ 5.84	$ 7.29	$ 9.16
Weighted-average common shares outstanding – assuming dilution (shares)		414	428	444
Supplemental information:
Includes excise taxes on sales by certain of our international operations		$ 5,595	$ 5,626	$ 5,573

[1] Includes excise taxes on sales by certain of our international operations of $5,595 million, $5,626 million, and $5,573 million for the years ended December 31, 2019, 2018, and 2017.