Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Member’s Equity	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2018	$ 42,649	$ 42,519	$ 130
Cash distributions	(1,200)	(1,200)	0
Comprehensive income (loss), net of tax	1,315	1,253	62
Ending Balance at Mar. 31, 2019	42,764	42,572	192
Beginning Balance at Dec. 31, 2019	43,720	43,575	145
Cash distributions	(1,100)	(1,100)	0
Comprehensive income (loss), net of tax	1,191	1,190	1
Ending Balance at Mar. 31, 2020	$ 43,811	$ 43,665	$ 146