Consolidated Statements of Shareholder's Equity - USD ($) $ in Millions	Total	Common stock	Additional paid- in capital	Accumulated other comprehensive loss	Accumulated deficit
Balance at beginning of period at Dec. 31, 2019	$ 1,019	$ 2	$ 4,332	$ (93)	$ (3,222)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Forgiveness of related party debt	300		300
Total comprehensive income	108			23	85
Balance at end of period at Dec. 31, 2020	1,427	2	4,632	(70)	(3,137)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Forgiveness of related party debt	0		0
Total comprehensive income	166			12	154
Balance at end of period at Dec. 31, 2021	1,593	2	4,632	(58)	(2,983)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Forgiveness of related party debt	0		0
Total comprehensive income	414			9	405
Stock Compensation Expense	5		5
Issuance of stock in business combination	511	1	510
Dividend to US Holding	(396)				(396)
Balance at end of period at Dec. 31, 2022	$ 2,127	$ 3	$ 5,147	$ (49)	$ (2,974)