Debt and Capital Lease Obligations (Tables)

9 Months Ended

Sep. 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):

				September 30, 2017
	Facility Amount		Maturity Date	Outstanding Borrowings		Letters of Credit Issued		Availability
Committed facilities:
Valero Revolver	$	3,000	November 2020	$	—	$	367	$	2,633
VLP Revolver	$	750	November 2020	$	30	$	—	$	720
Canadian Revolver	C$	25	November 2017	C$	—	C$	10	C$	15
Accounts receivable sales facility	$	1,300	July 2018	$	100	n/a		$	1,200
Letter of credit facility	$	100	November 2017	n/a		$	—	$	100
Uncommitted facilities:
Letter of credit facilities	n/a		n/a	n/a		$	212	n/a

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 September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Interest and debt expense	$	134	$	129	$	402	$	387
Less capitalized interest	20		14		48		53
Interest and debt expense, net of capitalized interest	$	114	$	115	$	354	$	334