Condensed Consolidated Statements of Changes in Shareholder's Equity - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings (Deficit)
Beginning Balance at Dec. 31, 2021	$ 5,080	$ 3	$ 3,191	$ 1,562	$ 324
Comprehensive income (loss):
Net income (loss)	52	0	0	0	52
Ending Balance at Mar. 31, 2022	3,612	3	3,191	90	328
Comprehensive income (loss):
Dividends	48	0	0	0	48
Other comprehensive income (loss), after tax	(1,472)	0	0	(1,472)	0
Comprehensive income (loss)	(1,420)
Beginning Balance at Dec. 31, 2022	927	3	2,778	(2,067)	213
Comprehensive income (loss):
Net income (loss)	90	0	0	0	90
Ending Balance at Mar. 31, 2023	1,411	3	2,778	(1,673)	303
Comprehensive income (loss):
Other comprehensive income (loss), after tax	394	$ 0	$ 0	$ 394	$ 0
Comprehensive income (loss)	$ 484