Segment and Geographic Information (Reconciliation Of Total Segment Income From Operations To Consolidated Income Before Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting [Abstract]
Income from operations for reportable segments	$ 2,800	$ 429	$ 656
Interest expense	(176)	(142)	(124)
Other income, net	53	44	38
Income before income taxes	$ 2,677	$ 331	$ 570