Consolidated Statements of Income (unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Operating revenues	[1]	$ 23,562	$ 19,649	$ 67,588	$ 54,947
Cost of sales:
Cost of materials and other		20,329	17,033	59,366	47,660
Operating expenses (excluding depreciation and amortization expense reflected below)		1,125	1,062	3,339	3,093
Depreciation and amortization expense		484	458	1,457	1,391
Lower of cost or market inventory valuation adjustment		0	0	0	(747)
Total cost of sales		21,938	18,553	64,162	51,397
Other operating expenses		44	0	44	0
General and administrative expenses (excluding depreciation and amortization expense reflected below)		229	192	597	507
Depreciation and amortization expense		13	12	39	35
Asset impairment loss		0	0	0	56
Operating income		1,338	892	2,746	2,952
Other income, net		17	12	50	35
Interest and debt expense, net of capitalized interest		(114)	(115)	(354)	(334)
Income before income tax expense		1,241	789	2,442	2,653
Income tax expense		378	144	686	652
Net income		863	645	1,756	2,001
Less: Net income attributable to noncontrolling interests		22	32	62	79
Net income attributable to Valero Energy Corporation stockholders		$ 841	$ 613	$ 1,694	$ 1,922
Earnings per common share (in dollars per share)		$ 1.91	$ 1.33	$ 3.80	$ 4.12
Weighted-average common shares outstanding (in shares)		439	458	444	465
Earnings per common share – assuming dilution (in dollars per share)		$ 1.91	$ 1.33	$ 3.80	$ 4.12
Weighted-average common shares outstanding – assuming dilution (in shares)		441	460	446	467
Dividends per common share (in dollars per share)		$ 0.70	$ 0.60	$ 2.10	$ 1.80

[1] Includes excise taxes on sales by certain of our international operations of $1,447 million and $1,398 million for the three months ended September 30, 2017 and 2016, respectively, and $4,103 million and $4,263 million for the nine months ended September 30, 2017 and 2016, respectively.