v3.25.2
Accounting for Derivative Instruments and Hedging Activities (Details)
£ in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
GBP (£)
Jun. 30, 2025
USD ($)
Dec. 31, 2024
USD ($)
Gain (Loss) On Financial Instruments, Net              
Change in fair value of cross-currency derivative instruments $ 124 $ (9) $ 111 $ (29)      
Foreign currency remeasurement of Sterling Notes to U.S. dollars (104) (5) (156) 11      
Gain (loss) on financial instruments, net $ 20 $ (14) $ (45) $ (18)      
Cross Currency Derivatives              
Derivatives:              
Notional amount | £         £ 1,275    
Level 2 | Cross Currency Derivatives              
Derivatives:              
Derivative Liability           $ 393 $ 504