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Financial Instruments - Foreign Exchange Risk Management (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Philippine Peso/U.S. Dollar    
Summary of Foreign Exchange Hedging Positions [Abstract]    
Gross Notional Value $ 50 $ 55
Indian Rupee/U.S. Dollar    
Summary of Foreign Exchange Hedging Positions [Abstract]    
Gross Notional Value 37 47
Euro/U.S. Dollar    
Summary of Foreign Exchange Hedging Positions [Abstract]    
Gross Notional Value 1 18
All Other    
Summary of Foreign Exchange Hedging Positions [Abstract]    
Gross Notional Value $ 16 30
Designated as Hedging Instrument    
Foreign Exchange Contracts [Line Items]    
Average Maturity of Foreign Exchange Hedging Contracts - within Three Months 68.00%  
Average Maturity of Foreign Exchange Hedging Contracts - within Three and Six Months 13.00%  
Average Maturity of Foreign Exchange Hedging Contracts - within Six and Twelve Months 15.00%  
Average Maturity of Foreign Exchange Hedging Contracts - greater than twelve months 4.00%  
Summary of Foreign Exchange Hedging Positions [Abstract]    
Gross Notional Value $ 104 150
Foreign exchange contract    
Summary of Foreign Exchange Hedging Positions [Abstract]    
Fair Value Asset (Liability) [1] (1) (1)
Foreign exchange contract | Philippine Peso/U.S. Dollar    
Summary of Foreign Exchange Hedging Positions [Abstract]    
Fair Value Asset (Liability) [1] 0 (2)
Foreign exchange contract | Indian Rupee/U.S. Dollar    
Summary of Foreign Exchange Hedging Positions [Abstract]    
Fair Value Asset (Liability) [1] (1) 1
Foreign exchange contract | Euro/U.S. Dollar    
Summary of Foreign Exchange Hedging Positions [Abstract]    
Fair Value Asset (Liability) 0 0
Foreign exchange contract | All Other    
Summary of Foreign Exchange Hedging Positions [Abstract]    
Fair Value Asset (Liability) [1] $ 0 $ 0
[1] Represents the net receivable (payable) amount included in the Consolidated Balance Sheet.