Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Consolidated Statements of Income
Operating revenues (a)	[1]	$ 87,804	$ 130,844	$ 138,074
Costs and expenses:
Cost of sales (excluding the lower of cost or market inventory valuation adjustment)		73,861	118,141	127,316
Lower of cost or market inventory valuation adjustment		790	0	0
Operating expenses		4,243	4,387	4,323
General and administrative expenses		710	724	758
Depreciation and amortization expense		1,842	1,690	1,720
Total costs and expenses		81,446	124,942	134,117
Operating income		6,358	5,902	3,957
Gain on disposition of retained interest in CST Brands, Inc.		0	0	325
Other income, net		46	47	59
Interest and debt expense, net of capitalized interest		(433)	(397)	(365)
Income from continuing operations before income tax expense		5,971	5,552	3,976
Income tax expense		1,870	1,777	1,254
Income from continuing operations		4,101	3,775	2,722
Income (loss) from discontinued operations		0	(64)	6
Net income		4,101	3,711	2,728
Less: Net income attributable to noncontrolling interests		111	81	8
Net income attributable to Valero Energy Corporation stockholders		3,990	3,630	2,720
Net income attributable to Valero Energy Corporation stockholders:
Continuing operations		3,990	3,694	2,714
Discontinued operations		0	(64)	6
Net income attributable to Valero Energy Corporation stockholders		$ 3,990	$ 3,630	$ 2,720
Earnings per common share:
Continuing operations		$ 8.00	$ 7.00	$ 4.98
Discontinued operations		0.00	(0.12)	0.01
Total		$ 8.00	$ 6.88	$ 4.99
Weighted-average common shares outstanding (in millions)		497	526	542
Earnings per common share – assuming dilution:
Continuing operations		$ 7.99	$ 6.97	$ 4.96
Discontinued operations		0.00	(0.12)	0.01
Total		$ 7.99	$ 6.85	$ 4.97
Weighted-average common shares outstanding – assuming dilution (in millions)		500	530	548
Dividends per common share		$ 1.70	$ 1.05	$ 0.85

[1] Includes excise taxes on sales by certain of our international operations of $5,980 million, $5,901 million, and $5,459 million.