CLOSED BLOCK (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Closed Block Liabilities:
Future policy benefits, policyholders’ account balances and other				$ 6,478	$ 6,709
Policyholder dividend obligation	$ 2	$ 0	$ 19	2	0
Other liabilities				38	47
Total Closed Block liabilities				6,518	6,756
Assets Designated to the Closed Block:
Fixed maturities available-for-sale, at fair value (amortized cost of $3,558 and $3,680)				3,754	3,672
Mortgage loans on real estate, net of valuation allowance of $- and $-				1,759	1,824
Policy loans				706	736
Cash and other invested assets				82	76
Other assets				145	179
Total assets designated to the Closed Block				6,446	6,487
Excess of Closed Block liabilities over assets designated to the Closed Block				72	269
Amounts included in Accumulated other comprehensive income (loss):
Net unrealized investment gains (losses), net of policyholders’ dividend obligation: $(2) and $0; and net of income tax: $41 and $0				164	8
Maximum future earnings to be recognized from closed block assets and liabilities				236	277
Revenues:
Premiums and other income	182	194	224
Net investment income (loss)	278	291	314
Investment gains (losses), net	(1)	(3)	(20)
Total revenues	459	482	518
Benefits and Other Deductions:
Policyholders’ benefits and dividends	439	471	537
Other operating costs and expenses	2	3	2
Total benefits and other deductions	441	474	539
Net income (loss), before income taxes	18	8	(21)
Income tax (expense) benefit	(2)	(3)	(36)
Net income (loss)	16	5	(57)
Movement in Closed Block Dividend Obligation [Roll Forward]
Balances, beginning of year	0	19	52
Unrealized investment gains (losses)	2	(19)	(33)
Balances, End of year	2	0	19
Policyholder dividend obligation	$ (2)	$ 0	$ (19)	(2)	0
Closed block operations, income taxes				41	0
Closed block investments fixed maturity available for sale amortized cost				3,588	3,680
Closed block, mortgage loans on real estate, valuation allowance				$ 0	$ 0