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	$ 647	$ 3	$ 680	$ (134)	$ 98
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(20)			(20)
Other comprehensive income (loss)	(166)				(166)
Other	1		1
Ending balance at Mar. 31, 2022	462	3	681	(154)	(68)
Beginning balance at Dec. 31, 2022	232	3	831	(220)	(382)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	63			63
Other comprehensive income (loss)	80				80
Other	0		0
Ending balance at Mar. 31, 2023	$ 375	$ 3	$ 831	$ (157)	$ (302)