Consolidated Statements of Income (unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Revenues	[1]	$ 22,102	$ 24,263
Cost of sales:
Cost of materials and other		19,952	21,978
Lower of cost or market (LCM) inventory valuation adjustment		2,542	0
Operating expenses (excluding depreciation and amortization expense reflected below)		1,124	1,215
Depreciation and amortization expense		569	537
Total cost of sales		24,187	23,730
Other operating expenses		2	2
General and administrative expenses (excluding depreciation and amortization expense reflected below)		177	209
Depreciation and amortization expense		13	14
Operating income (loss)		(2,277)	308
Other income, net		32	22
Interest and debt expense, net of capitalized interest		(125)	(112)
Income (loss) before income tax expense (benefit)		(2,370)	218
Income tax expense (benefit)		(616)	51
Net income (loss)		(1,754)	167
Less: Net income attributable to noncontrolling interests		97	26
Net income (loss) attributable to Valero Energy Corporation stockholders		$ (1,851)	$ 141
Earnings (loss) per common share (in dollars per share)		$ (4.54)	$ 0.34
Weighted-average common shares outstanding (in shares)		408	416
Earnings (loss) per common share – assuming dilution (in dollars per share)		$ (4.54)	$ 0.34
Weighted-average common shares outstanding – assuming dilution (in shares)		408	418
Supplemental information:
Includes excise taxes on sales by certain of our international operations		$ 1,368	$ 1,330

[1] Includes excise taxes on sales by certain of our international operations of $1,368 million and $1,330 million for the three months ended March 31, 2020 and 2019, respectively.