Equity (Tables)

6 Months Ended

Jun. 30, 2012

Equity [Abstract]

Schedule of changes in equity

The following is a reconciliation of the beginning and ending balances (in millions) of equity attributable to our stockholders, equity attributable to the noncontrolling interest, and total equity for the six months ended June 30, 2012 and 2011:

	2012									2011
	Valero Stockholders’ Equity			Non- controlling Interest			Total Equity			Valero Stockholders’ Equity			Non- controlling Interest			Total Equity
Balance as of beginning of period	$	16,423		$	22		$	16,445		$	15,025		$	—		$	15,025
Net income (loss)	399			(1		)	398			842			(1		)	841
Dividends	(166		)	—			(166		)	(57		)	—			(57		)
Stock-based compensation expense	20			—			20			23			—			23
Tax deduction in excess of stock-based compensation expense	3			—			3			11			—			11
Transactions in connection with stock-based compensation plans:
Stock issuances	11			—			11			30			—			30
Stock repurchases	(136		)	—			(136		)	(2		)	—			(2		)
Contributions from noncontrolling interest	—			25			25			—			11			11
Other comprehensive income	23			—			23			110			—			110
Balance as of end of period	$	16,577		$	46		$	16,623		$	15,982		$	10		$	15,992

Schedule of stock by class

Activity in the number of shares of common stock and treasury stock was as follows (in millions) for the six months endedJune 30, 2012 and 2011:

	2012			2011
	Common Stock	Treasury Stock		Common Stock	Treasury Stock
Balance as of beginning of period	673	(117	)	673	(105	)
Transactions in connection with stock-based compensation plans:
Stock issuances	—	1		—	2
Stock purchases	—	(6	)	—	—
Balance as of end of period	673	(122	)	673	(103	)