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, 2020	$ 786	$ 3	$ 692	$ (47)	$ 138
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1			1
Other comprehensive income (loss)	(73)				(73)
Other	1		1
Ending balance at Mar. 31, 2021	715	3	693	(46)	65
Beginning balance at Dec. 31, 2021	708	3	679	(60)	86
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(19)			(19)
Other comprehensive income (loss)	(150)				(150)
Other	1		1
Ending balance at Mar. 31, 2022	$ 540	$ 3	$ 680	$ (79)	$ (64)