Derivative Instruments - Schedule of Foreign Exchange Contracts (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Derivative assets	$ 33	$ 26
Derivative Liability	$ 35	$ 35
Foreign Exchange | Designated as Hedging Instrument | FX Forwards-Buy GBP/Sell USD
Weighted Average Remaining Term (years)	25 days
Derivative assets	$ 18
Foreign Exchange | Designated as Hedging Instrument | FX Forwards-Buy GBP/Sell USD | Face Amount (Buy)
Derivative assets	251
Foreign Exchange | Designated as Hedging Instrument | FX Forwards-Buy GBP/Sell USD | Face Amount (Sell)
Derivative assets	$ 318
Foreign Exchange | Designated as Hedging Instrument | FX Forwards-Buy USD/Sell GBP
Weighted Average Remaining Term (years)	3 days
Derivative Liability	$ (12)
Foreign Exchange | Designated as Hedging Instrument | FX Forwards-Buy USD/Sell GBP | Face Amount (Buy)
Derivative Liability	298
Foreign Exchange | Designated as Hedging Instrument | FX Forwards-Buy USD/Sell GBP | Face Amount (Sell)
Derivative Liability	$ 232
Foreign Exchange | Designated as Hedging Instrument | FX Forwards-Buy GBP/Sell CAD
Weighted Average Remaining Term (years)	2 months 12 days
Derivative assets	$ 0
Foreign Exchange | Designated as Hedging Instrument | FX Forwards-Buy GBP/Sell CAD | Face Amount (Buy)
Derivative assets	0
Foreign Exchange | Designated as Hedging Instrument | FX Forwards-Buy GBP/Sell CAD | Face Amount (Sell)
Derivative assets	$ 1