Consolidated Statements of Member's Equity - USD ($) $ in Millions	Total	AOCI Attributable to Parent	Member Units	Member Units Cumulative Effect, Period of Adoption, Adjustment
MEMBER'S EQUITY
TOTAL MEMBER'S EQUITY		$ (171)
Balance at beginning of period at Dec. 31, 2018		(171)	$ 18,048	$ (39)
MEMBER'S EQUITY
Net income (loss)	$ (3,361)		(3,361)
Distributions			(709)
Other			0
Other comprehensive income (loss)	(115)	(115)
Balance at end of period at Sep. 30, 2019		(286)	13,939
Balance at beginning of period at Jun. 30, 2019		(176)	13,969
MEMBER'S EQUITY
Net income (loss)	114		114
Distributions			(144)
Other			0
Other comprehensive income (loss)	(110)	(110)
Balance at end of period at Sep. 30, 2019		(286)	13,939
MEMBER'S EQUITY
TOTAL MEMBER'S EQUITY	13,653	(286)
TOTAL MEMBER'S EQUITY	13,545	(179)
Balance at beginning of period at Dec. 31, 2019		(179)	13,724	$ (3)
MEMBER'S EQUITY
Net income (loss)	486		486
Distributions			(1,118)
Other			7
Other comprehensive income (loss)	(179)	(179)
Balance at end of period at Sep. 30, 2020		(358)	13,096
Balance at beginning of period at Jun. 30, 2020		(399)	13,301
MEMBER'S EQUITY
Net income (loss)	197		197
Distributions			(400)
Other			(2)
Other comprehensive income (loss)	41	41
Balance at end of period at Sep. 30, 2020		(358)	$ 13,096
MEMBER'S EQUITY
TOTAL MEMBER'S EQUITY	$ 12,738	$ (358)