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Accounting for Derivative Instruments and Hedging Activities (Details)
£ in Millions, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2022
GBP (£)
Sep. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
Gain (Loss) On Financial Instruments, Net              
Change in fair value of cross-currency derivative instruments $ (322) $ (111) $ (482) $ (133)      
Foreign currency remeasurement of Sterling Notes to U.S. dollars 129 47 304 26      
Gain (loss) on financial instruments, net $ (193) $ (64) $ (178) $ (107)      
Cross Currency Derivatives              
Derivatives:              
Notional amount | £         £ 1,275    
Level 2 | Cross Currency Derivatives              
Derivatives:              
Derivative Liability           $ 772 $ 290