Income Taxes (Components of income tax expense and reconciliation of effective tax rate) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current
Federal	$ (34)	$ 78	$ 290
Foreign	100	26	15
State and local	94	88	65
Current income tax expense	160	192	370
Deferred
Federal	525	260	(107)
Foreign	(16)	14	6
State and local	28	(6)	(20)
Deferred income tax expense (benefit)	537	268	(121)
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Computed tax at statutory tax rate	588	388	239
State income taxes, net of federal tax benefit	102	64	31
Other permanent items	18	1	(3)
Change in federal valuation allowance	15	0	(22)
Foreign restructuring	(37)	0	0
Foreign tax rate differential	11	7	4
Total	$ 697	$ 460	$ 249