Consolidated Statements of Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)
Beginning balance at Dec. 31, 2021	$ 7,483	$ 2	$ 8,546	$ (2,381)	$ 1,316
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	350			350
Other comprehensive income (loss)	(1,964)				(1,964)
Other	(14)		(14)
Ending balance at Mar. 31, 2022	5,855	2	8,532	(2,031)	(648)
Beginning balance at Dec. 31, 2022	(1,074)	2	8,536	(1,757)	(7,855)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(19)			(19)
Other comprehensive income (loss)	2,333				2,333
Other	(12)		(12)
Ending balance at Mar. 31, 2023	$ 1,228	$ 2	$ 8,524	$ (1,776)	$ (5,522)