Consolidated Statements of Income (unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues	[1]	$ 27,249	$ 30,849	$ 80,445	$ 88,303
Cost of sales:
Cost of materials and other		24,335	27,701	72,396	79,317
Operating expenses (excluding depreciation and amortization expense reflected below)		1,239	1,193	3,629	3,439
Depreciation and amortization expense		556	504	1,645	1,499
Total cost of sales		26,130	29,398	77,670	84,255
Other operating expenses		10	10	14	41
General and administrative expenses (excluding depreciation and amortization expense reflected below)		217	209	625	695
Depreciation and amortization expense		11	13	39	39
Operating income (loss)		881	1,219	2,097	3,273
Other income, net		34	42	68	88
Interest and debt expense, net of capitalized interest		(111)	(111)	(335)	(356)
Income before income tax expense (benefit)		804	1,150	1,830	3,005
Income tax expense		165	276	376	674
Net income		639	874	1,454	2,331
Less: Net income attributable to noncontrolling interests		30	18	92	161
Net income attributable to Valero Energy Corporation stockholders		$ 609	$ 856	$ 1,362	$ 2,170
Earnings per common share (in dollars per share)		$ 1.48	$ 2.01	$ 3.28	$ 5.05
Weighted-average common shares outstanding (in shares)		412	425	415	428
Earnings per common share – assuming dilution (in dollars per share)		$ 1.48	$ 2.01	$ 3.28	$ 5.05
Weighted-average common shares outstanding – assuming dilution (in shares)		413	427	416	430
Supplemental information:
Includes excise taxes on sales by certain of our international operations		$ 1,399	$ 1,338	$ 4,139	$ 4,272

[1] Includes excise taxes on sales by certain of our international operations of $1,399 million and $1,338 million for the three months ended September 30, 2019 and 2018, respectively, and $4,139 million and $4,272 million for the nine months ended September 30, 2019 and 2018, respectively.