Income Taxes - EEGH - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Components of Income Tax Expense (Benefit) [Line Items]
Federal	$ (1,463)	$ (1,701)	$ (1,537)
State	(65)	(177)	(121)
Total current	(1,449)	(1,778)	(1,572)
Federal	(408)	1,037	1,438
State	(49)	(476)	424
Total deferred	(462)	650	1,883
Total	(1,916)	(1,132)	308
EEGH
Components of Income Tax Expense (Benefit) [Line Items]
Federal	12	(47)	(20)
State	29	(21)	1
Total current	41	(68)	(19)
Federal	88	129	23
State	38	56	(28)
Total deferred	126	185	(5)
Total	$ 167	$ 117	$ (24)