Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income	$ 830	$ 743	$ 398	$ 841
Other comprehensive income (loss):
Foreign currency translation adjustment	(91)	20	32	112
(Gain) loss reclassified into income related to:
Prior service credit	(6)	(5)	(10)	(10)
Net actuarial loss	9	4	17	7
Net gain (loss) on pension and other postretirement benefits	3	(1)	7	(3)
Derivative instruments designated and qualifying as cash flow hedges:
Net gain (loss) arising during the period	(31)	0	16	0
Net (gain) loss reclassified into income	12	0	(36)	0
Loss on cash flow hedges	(19)	0	(20)	0
Other comprehensive income (loss), before income tax benefit	(107)	19	19	109
Income tax benefit related to items of other comprehensive income (loss)	(5)	0	(4)	(1)
Other comprehensive income (loss)	(102)	19	23	110
Comprehensive income	728	762	421	951
Less: Comprehensive loss attributable to noncontrolling interest	(1)	(1)	(1)	(1)
Comprehensive income attributable to Valero Energy Corporation stockholders	$ 729	$ 763	$ 422	$ 952