Revenues (Tables)

12 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following tables present our revenues from contracts with customers disaggregated by product type and geographic areas.

	Year Ended December 31, 2018
United States							Northern
(In millions)	Eagle Ford		Bakken		Oklahoma		Delaware		Other U.S.		Total
Crude oil and condensate	$	1,554	$	1,568	$	426	$	235	$	164	$	3,947
Natural gas liquids	205		62		181		38		9		495
Natural gas	145		38		184		20		26		413
Other	8		—		—		—		23		31
Revenues from contracts with customers	$	1,912	$	1,668	$	791	$	293	$	222	$	4,886

	Year Ended December 31, 2018
International							Other
(In millions)	E.G.		U.K.		Libya		International		Total
Crude oil and condensate	$	342	$	282	$	187	$	77	$	888
Natural gas liquids	4		5		—		—		9
Natural gas	37		40		9		—		86
Other	1		32		—		—		33
Revenues from contracts with customers	$	384	$	359	$	196	$	77	$	1,016

Contract with Customer, Asset and Liability

Significant changes in the contract asset (liability) balance during the period are as follows.

(In millions)	Year Ended December 31, 2018
Contract asset balance as of January 1, 2018	$	—
Revenue recognized as performance obligations are satisfied	109
Amounts invoiced to customers	(110		)
Contract asset (liability) balance as of December 31, 2018	$	(1	)

The following table provides information about receivables and contract assets (liabilities) from contracts with customers.

(In millions)	December 31, 2018			January 1, 2018
Receivables from contracts with customers, which are included in receivables, less reserves	$	714		$	811
Contract asset (liability)	$	(1	)	$	—