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Objectives And Strategies For Using Derivatives (Narratives) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Derivative Instruments, Gain (Loss)          
Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax     $ 35    
Not Designated as Hedging Instrument          
Derivative Instruments, Gain (Loss)          
Gain (loss) on undesignated foreign exchange hedging instruments $ 9 $ 14 32 $ 6  
Foreign currency exchange contracts | Not Designated as Hedging Instrument          
Derivative Instruments, Gain (Loss)          
Derivative, Notional Amount 3,100   3,100    
Fair Value Hedging | Interest Rate Contract          
Derivative Instruments, Gain (Loss)          
Long-term Debt, Fair Value 480   480    
Derivative, Notional Amount 525   525    
Cash Flow Hedging | Foreign currency exchange contracts          
Derivative Instruments, Gain (Loss)          
Derivative, Notional Amount 3,000   3,000    
Net Investment Hedging          
Derivative Instruments, Gain (Loss)          
Derivative, Notional Amount 1,700   1,700    
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2          
Derivative Instruments, Gain (Loss)          
Derivative Asset 110   110   $ 70
Derivative Liability $ 159   $ 159   $ 259