Derivative Financial Instruments And Hedging Activities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Average maturity of foreign currency forward contracts, in years	2 years
Cash and equivalents	$ 1,242	$ 1,603
Marketable securities held in trust	162	191
Derivative notional amount	$ 6,900	$ 6,800
Maximum
Derivative Instruments, Gain (Loss) [Line Items]
Maturity of fixed-income securities, in years	5 years