Derivative Financial Instruments - Schedule of Effect of Non-Hedging Derivatives on Income Statement (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]
Derivative (Loss) Gain Recognized	$ (2)	$ 10	$ 8
Derivative Gain (Loss), Statement Of Income Or Comprehensive Income, Extensible Enumeration Not Disclosed Flag			false
Derivatives embedded in convertible securities
Derivative Instruments, Gain (Loss) [Line Items]
Derivative (Loss) Gain Recognized			$ (2)
Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Derivative (Loss) Gain Recognized	(1)
Options (including swaptions)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative (Loss) Gain Recognized		(1)	3
Collars
Derivative Instruments, Gain (Loss) [Line Items]
Derivative (Loss) Gain Recognized		14	(3)
Futures
Derivative Instruments, Gain (Loss) [Line Items]
Derivative (Loss) Gain Recognized	$ (1)	$ (3)	$ 10