FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Jun. 30, 2015

FAIR VALUE MEASUREMENTS

Assets and liabilities accounted for at fair value on a recurring basis (in millions)

	June 30, 2015
	Level 1		Level 2		Level 3		Collateral		Total
Assets:
Commodity derivative instruments, other current assets	$	—	$	18	$	—	$	—	$	18
Liabilities:
Commodity derivative instruments, accrued liabilities	$	—	$	9	$	—	$	—	$	9

	December 31, 2014
	Level 1		Level 2		Level 3		Collateral		Total
Assets:
Commodity derivative instruments, other current assets	$	—	$	24	$	—	$	—	$	24