Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Deferred taxes on undistributed earnings of subsidiaries	$ 0
Unrecognized Tax Benefits [Roll Forward]
Balance at January 1	0	$ 2	$ 121
Additions for tax positions related to the current year			68
Reduction due to deconsolidation of subsidiaries		(2)	(187)
Balance at December 31	0	0	$ 2
Interest expense (benefit)	0	0
Income tax penalties expense	$ 0	$ 0