Consolidated Statements of Income (unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues	[1]	$ 10,397	$ 28,933	$ 32,499	$ 53,196
Cost of sales:
Cost of materials and other		9,079	26,083	29,031	48,061
Lower of cost or market (LCM) inventory valuation adjustment		(2,248)	0	294	0
Operating expenses (excluding depreciation and amortization expense reflected below)		1,027	1,175	2,151	2,390
Depreciation and amortization expense		566	552	1,135	1,089
Total cost of sales		8,424	27,810	32,611	51,540
Other operating expenses		3	2	5	4
General and administrative expenses (excluding depreciation and amortization expense reflected below)		169	199	346	408
Depreciation and amortization expense		12	14	25	28
Operating income (loss)		1,789	908	(488)	1,216
Other income, net		27	12	59	34
Interest and debt expense, net of capitalized interest		(142)	(112)	(267)	(224)
Income (loss) before income tax expense (benefit)		1,674	808	(696)	1,026
Income tax expense (benefit)		339	160	(277)	211
Net income (loss)		1,335	648	(419)	815
Less: Net income attributable to noncontrolling interests		82	36	179	62
Net income (loss) attributable to Valero Energy Corporation stockholders		$ 1,253	$ 612	$ (598)	$ 753
Earnings (loss) per common share (in dollars per share)		$ 3.07	$ 1.47	$ (1.48)	$ 1.80
Weighted-average common shares outstanding (in shares)		406	415	407	416
Earnings (loss) per common share – assuming dilution (in dollars per share)		$ 3.07	$ 1.47	$ (1.48)	$ 1.80
Weighted-average common shares outstanding – assuming dilution (in shares)		407	417	407	417
Supplemental information:
Includes excise taxes on sales by certain of our international operations		$ 784	$ 1,410	$ 2,152	$ 2,740

[1] Includes excise taxes on sales by certain of our international operations of $784 million and $1,410 million for the three months ended June 30, 2020 and 2019, respectively, and $2,152 million and $2,740 million for the six months ended June 30, 2020 and 2019, respectively.