Income Taxes (Components Of Income (Loss) Before Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Domestic	$ 2,523	$ 2,298	$ 233
Foreign	423	379	98
Income before income taxes	$ 2,946	$ 2,677	$ 331