Income Taxes - Components of Income Tax (Benefit) Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Foreign:
Current	$ 261	$ 136	$ 32
Deferred	32	(21)	(12)
Federal:
Current	39	20	8
Deferred	12	19	(33)
Total income tax expense (benefit)	$ 344	$ 154	$ (5)