Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues	[1]	$ 117,033	$ 93,980	$ 75,659
Cost of sales:
Cost of materials and other		104,732	83,037	65,962
Operating expenses (excluding depreciation and amortization expense reflected below)		4,690	4,504	4,251
Depreciation and amortization expense		2,017	1,934	1,846
Lower of cost or market inventory valuation adjustment		0	0	(747)
Total cost of sales		111,439	89,475	71,312
Other operating expenses		45	61	0
General and administrative expenses (excluding depreciation and amortization expense reflected below)		925	829	709
Depreciation and amortization expense		52	52	48
Asset impairment loss		0	0	56
Operating income		4,572	3,563	3,534
Other income, net		130	112	94
Interest and debt expense, net of capitalized interest		(470)	(468)	(446)
Income before income tax expense (benefit)		4,232	3,207	3,182
Income tax expense (benefit)		879	(949)	765
Net income		3,353	4,156	2,417
Less: Net income attributable to noncontrolling interests		231	91	128
Net income attributable to Valero Energy Corporation stockholders		$ 3,122	$ 4,065	$ 2,289
Earnings per common share (in usd per share)		$ 7.30	$ 9.17	$ 4.94
Weighted-average common shares outstanding (shares)		426	442	461
Earnings per common share – assuming dilution (in usd per share)		$ 7.29	$ 9.16	$ 4.94
Weighted-average common shares outstanding – assuming dilution (shares)		428	444	464

[1] Includes excise taxes on sales by certain of our international operations of $5,626 million, $5,573 million, and $5,493 million for the years ended December 31, 2018, 2017, and 2016.