INVESTMENTS (NET UNREALIZED INVESTMENTS) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
DAC	$ (243)	$ 22
Fixed maturities
Schedule of Available-for-sale Securities [Line Items]
Balance, beginning of the period	447
Balance, end of the period	1,527	447
Unrealized Investment Gains Losses With Otti Losses | Net Unrealized Gains (Losses) on Investments | Fixed maturities
Schedule of Available-for-sale Securities [Line Items]
Balance, beginning of the period	19	16
Net unrealized gains (losses) arising during the year	(18)	(6)
Included in Net income (loss)	0	9
Excluded from Net earnings (loss)	0	0
DAC	0	0
Deferred income taxes	0	0
Policyholders liabilities	0	0
Balance, end of the period	1	19
Unrealized Investment Gains Losses With Otti Losses | DAC | Fixed maturities
Schedule of Available-for-sale Securities [Line Items]
Balance, beginning of the period	(1)	0
Net unrealized gains (losses) arising during the year	0	0
Included in Net income (loss)	0	0
Excluded from Net earnings (loss)	0	0
DAC	2	(1)
Deferred income taxes	0	0
Policyholders liabilities	0	0
Balance, end of the period	1	(1)
Unrealized Investment Gains Losses With Otti Losses | Policyholders Liabilities | Fixed maturities
Schedule of Available-for-sale Securities [Line Items]
Balance, beginning of the period	(10)	(4)
Net unrealized gains (losses) arising during the year	0	0
Included in Net income (loss)	0	0
Excluded from Net earnings (loss)	0	0
DAC	0	0
Deferred income taxes	0	0
Policyholders liabilities	9	(6)
Balance, end of the period	(1)	(10)
Unrealized Investment Gains Losses With Otti Losses | Deferred Income Tax Asset (Liability) | Fixed maturities
Schedule of Available-for-sale Securities [Line Items]
Balance, beginning of the period	(3)	(5)
Net unrealized gains (losses) arising during the year	0	0
Included in Net income (loss)	0	0
Excluded from Net earnings (loss)	0	0
DAC	0	0
Deferred income taxes	(2)	2
Policyholders liabilities	0	0
Balance, end of the period	(5)	(3)
Unrealized Investment Gains Losses With Otti Losses | AOCI Gain (Loss) Related to Net Unrealized Investment Gains (Losses) | Fixed maturities
Schedule of Available-for-sale Securities [Line Items]
Balance, beginning of the period	5	7
Net unrealized gains (losses) arising during the year	(18)	(6)
Included in Net income (loss)	0	9
Excluded from Net earnings (loss)	0	0
DAC	2	(1)
Deferred income taxes	(2)	2
Policyholders liabilities	9	(6)
Balance, end of the period	(4)	5
Unrealized Investment Gains Losses All Other | Fixed maturities
Schedule of Available-for-sale Securities [Line Items]
Balance, beginning of the period	428
Balance, end of the period	1,526	428
Unrealized Investment Gains Losses All Other | Equity securities
Schedule of Available-for-sale Securities [Line Items]
Balance, beginning of the period	0
Balance, end of the period	0	0
Unrealized Investment Gains Losses All Other | Net Unrealized Gains (Losses) on Investments | Fixed maturities
Schedule of Available-for-sale Securities [Line Items]
Balance, beginning of the period	428	674
Net unrealized gains (losses) arising during the year	1,085	(240)
Included in Net income (loss)	13	(6)
Excluded from Net earnings (loss)	0	0
DAC	0	0
Deferred income taxes	0	0
Policyholders liabilities	0	0
Balance, end of the period	1,526	428
Unrealized Investment Gains Losses All Other | DAC | Fixed maturities
Schedule of Available-for-sale Securities [Line Items]
Balance, beginning of the period	(70)	(93)
Net unrealized gains (losses) arising during the year	0	0
Included in Net income (loss)	0	0
Excluded from Net earnings (loss)	0	0
DAC	(245)	23
Deferred income taxes	0	0
Policyholders liabilities	0	0
Balance, end of the period	(315)	(70)
Unrealized Investment Gains Losses All Other | Policyholders Liabilities | Fixed maturities
Schedule of Available-for-sale Securities [Line Items]
Balance, beginning of the period	(188)	(221)
Net unrealized gains (losses) arising during the year	0	0
Included in Net income (loss)	0	0
Excluded from Net earnings (loss)	0	0
DAC	0	0
Deferred income taxes	0	0
Policyholders liabilities	(44)	33
Balance, end of the period	(232)	(188)
Unrealized Investment Gains Losses All Other | Deferred Income Tax Asset (Liability) | Fixed maturities
Schedule of Available-for-sale Securities [Line Items]
Balance, beginning of the period	(60)	(126)
Net unrealized gains (losses) arising during the year	0	0
Included in Net income (loss)	0	0
Excluded from Net earnings (loss)	0	0
DAC	0	0
Deferred income taxes	(240)	66
Policyholders liabilities	0	0
Balance, end of the period	(300)	(60)
Unrealized Investment Gains Losses All Other | AOCI Gain (Loss) Related to Net Unrealized Investment Gains (Losses) | Fixed maturities
Schedule of Available-for-sale Securities [Line Items]
Balance, beginning of the period	110	234
Net unrealized gains (losses) arising during the year	1,085	(240)
Included in Net income (loss)	13	(6)
Excluded from Net earnings (loss)	0	0
DAC	(245)	23
Deferred income taxes	(240)	66
Policyholders liabilities	(44)	33
Balance, end of the period	$ 679	$ 110