Schedule II (Condensed Statements Of Operations) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues:
Net gains (losses) on financial instruments at fair value and foreign exchange	$ 4	$ 45	$ 40
Net gains (losses) on extinguishment of debt	1	4	30
Total revenues	7	154	189
Expenses:
Interest	210	179	163
Provision (benefit) for income taxes	0	1	0
Net income (loss)	(491)	(195)	(445)
Parent Company [Member]
Revenues:
Net investment income	21	20	26
Net realized investment gains (losses)	(32)	(10)	3
Net gains (losses) on financial instruments at fair value and foreign exchange	4	110	49
Net gains (losses) on extinguishment of debt	1	5	30
Other net realized gains (losses)	0	0	(6)
Total revenues	(6)	125	102
Expenses:
Operating	15	11	10
Interest	76	76	75
Total expenses	91	87	85
Income Loss Before Income Taxes And Equity In Earnings Of Subsidiaries, Total	(97)	38	17
Provision (benefit) for income taxes	(1)	(3)	(3)
Income Loss Before Equity In Earnings Of Subsidiaries, Total	(96)	41	20
Equity in net income (loss) of subsidiaries	(395)	(236)	(465)
Net income (loss)	$ (491)	$ (195)	$ (445)