Income Taxes (Components Of Provision For Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Current tax expense:
Federal	$ 1,469	$ 1,467	$ 1,724
Current Foreign Tax Expense (Benefit)	98	18	7
State and local	179	165	461
Total current tax expense	1,746	1,650	2,192
Deferred tax expense (benefit)	4	180	(526)
Total income tax expense	$ 1,750	$ 1,830	$ 1,666