Impairment of Long-lived Assets and Goodwill (Tables)

3 Months Ended

Mar. 31, 2020

Impairment of Long-lived Assets and Goodwill [Abstract]

Schedule of Goodwill [Table Text Block]

The following table presents the change in carrying amount of goodwill in each of our reportable segments.

	Gathering and Processing			Transportation and Storage		Total
	(In millions)
Balance as of December 31, 2019	$	12		$	—	$	12
Goodwill impairment	(12		)	—		(12		)
Balance as of March 31, 2020	$	—		$	—	$	—