Debt and Capital Lease Obligations (Tables)

6 Months Ended

Jun. 30, 2017

Debt and Capital Lease Obligations [Abstract]

Summary of credit facilities

We had outstanding borrowings, letters of credit issued, and availability under our credit facilities as follows (in millions):

				June 30, 2017
	Facility Amount		Maturity Date	Outstanding Borrowings		Letters of Credit Issued		Availability
Committed facilities:
Valero Revolver	$	3,000	November 2020	$	—	$	150	$	2,850
VLP Revolver	$	750	November 2020	$	30	$	—	$	720
Canadian Revolver	C$	25	November 2017	C$	—	C$	10	C$	15
Accounts receivable sales facility (a)	$	1,300	July 2017	$	100	n/a		$	999
Letter of credit facility	$	100	November 2017	n/a		$	—	$	100
Uncommitted facilities:
Letter of credit facilities	n/a		n/a	n/a		$	202	n/a

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(a) As of June 30, 2017, the actual availability under the accounts receivable sales facility fell below the facility borrowing capacity to $1.1 billion due to a decrease in eligible trade receivables. In July 2017, we amended this facility to extend the maturity date from July 2017 to July 2018.

Interest and debt expense, net of capitalized interest

Interest and debt expense, net of capitalized interest is comprised of the following (in millions):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Interest and debt expense	$	134	$	130	$	268	$	258
Less capitalized interest	15		19		28		39
Interest and debt expense, net of capitalized interest	$	119	$	111	$	240	$	219