Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2018

Fair Value Measurements

Assets and liabilities measured at fair value on a recurring basis

The following tables provide fair value measurement information for such assets and liabilities that are measured on a recurring basis as of June 30, 2018, and December 31, 2017 (in millions):

Fair Value Measurements at June 30, 2018:
									Total
							Netting and		Fair
Embedded derivatives	Level 1		Level 2		Level 3		Collateral		Value
Liabilities:
Accrued liabilities	$	—	$	17	$	—	$	—	$	17
Deferred credits and other liabilities	$	—	$	86	$	—	$	—	$	86

Fair Value Measurements at December 31, 2017:
									Total
							Netting and		Fair
Embedded derivatives	Level 1		Level 2		Level 3		Collateral		Value
Liabilities:
Accrued liabilities	$	—	$	39	$	—	$	—	$	39
Deferred credits and other liabilities	$	—	$	147	$	—	$	—	$	147