Objectives And Strategies For Using Derivatives (Narratives) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Derivative Instruments, Gain (Loss)
Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax			$ 90
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss)
Gain (loss) on undesignated foreign exchange hedging instruments	$ (1)	$ (3)	35	$ 6
Foreign currency exchange contracts | Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss)
Derivative, Notional Amount	2,200		2,200
Fair Value Hedging | Interest Rate Contract
Derivative Instruments, Gain (Loss)
Long-term Debt, Fair Value	489		489
Derivative, Notional Amount	525		525
Cash Flow Hedging | Foreign currency exchange contracts
Derivative Instruments, Gain (Loss)
Derivative, Notional Amount	829		829
Net Investment Hedging
Derivative Instruments, Gain (Loss)
Derivative, Notional Amount	1,400		1,400
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Derivative Instruments, Gain (Loss)
Derivative Asset	127		127		$ 65
Derivative Liability	$ 65		$ 65		$ 41