Income Taxes (Schedule Of The Provision For (Benefit From) Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current
Federal	$ 434	$ (208)	$ 20
State	57	6	9
Foreign	93	14	25
Total Current	584	(188)	54
Deferred
Federal	19	154	69
State	13	(13)	11
Foreign	(9)	5	(26)
Total Deferred	23	146	54
Provision for (benefit from) income taxes	$ 607	$ (42)	$ 108