Income Taxes (Schedule of Components of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current income tax expense
U.S. federal	$ 1	$ 502	$ 0
Foreign	3	4	6
State and local	9	168	80
Total current expense	13	674	86
Deferred income tax expense (benefit)
U.S. federal	493	151	280
Foreign	(1)	0	1
State and local	61	(35)	(39)
Total deferred expense	553	116	242
Other tax expense	61	0	0
Total income tax expense from continuing operations	$ 627	$ 790	$ 328