Condensed Consolidated Statement of Comprehensive Income (Unaudited) Statement - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 105	$ 123
Other comprehensive loss:
Unrealized losses on derivative instruments	(6)	0
Reclassification of derivative losses to net income	0	0
Other comprehensive loss	(6)	0
Comprehensive income	106	122
Less: Comprehensive (loss) income attributable to noncontrolling interest	(7)	1
Comprehensive income attributable to Limited Partners	$ 99	$ 123