INVESTMENTS (NET UNREALIZED INVESTMENTS) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, End of Period	$ 400	$ 1,560	$ 400	$ 1,560
Net Unrealized Gains (Losses) On Investments
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year			447
Balance, End of Period	1,161		1,161
Net Unrealized Gains (Losses) On Investments | Unrealized Investment Gains Losses With OTTI Losses
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year	(6)	15	19	16
Net investment gains (losses) arising during the period	(5)	2	0	(5)
Reclassification adjustment for OTTI losses excluded from Net earnings (loss)	0	0	0	0
Balance, End of Period	0	18	0	18
Net Unrealized Gains (Losses) On Investments | Unrealized Investment Gains Losses All Other
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year	1,145	3,079	428	674
Net investment gains (losses) arising during the period	18	(17)	705	2,417
Included in Net income (loss)	(2)	0	28	(29)
Reclassification adjustment for OTTI losses excluded from Net earnings (loss)	0	0	0	0
Balance, End of Period	1,161	3,062	1,161	3,062
DAC | Unrealized Investment Gains Losses With OTTI Losses
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year	2	0	(1)	0
Impact of net unrealized investment gains (losses) on DAC	1	0	2	0
Balance, End of Period	1	0	1	0
DAC | Unrealized Investment Gains Losses All Other
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year	(172)	(266)	(87)	(131)
Impact of net unrealized investment gains (losses) on DAC	6	79	(79)	(56)
Balance, End of Period	(166)	(187)	(166)	(187)
Policyholders Liabilities | Unrealized Investment Gains Losses With OTTI Losses
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year	1	0	(10)	(4)
Impact of net unrealized investment gains (losses) on policyholders liabilities	1	0	10	4
Balance, End of Period	0	0	0	0
Policyholders Liabilities | Unrealized Investment Gains Losses All Other
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year	(208)	(471)	(189)	(230)
Impact of net unrealized investment gains (losses) on policyholders liabilities	(24)	5	(43)	(236)
Balance, End of Period	(232)	(466)	(232)	(466)
Deferred Income Tax Asset Liability | Unrealized Investment Gains Losses With OTTI Losses
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year	1	(6)	(3)	(5)
Impact of net unrealized investment gains (losses) on Deferred income taxes	1	1	3	(2)
Balance, End of Period	0	(7)	0	(7)
Deferred Income Tax Asset Liability | Unrealized Investment Gains Losses All Other
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year	(267)	(821)	(53)	(110)
Impact of net unrealized investment gains (losses) on Deferred income taxes	22	(21)	(214)	(755)
Balance, End of Period	(267)	(843)	(267)	(843)
AOCI Gain Losses Related to Net Unrealized Investment Gains Losses | Unrealized Investment Gains Losses With OTTI Losses
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year	(2)	9	5	7
Net investment gains (losses) arising during the period	(5)	2	0	(5)
Reclassification adjustment for OTTI losses excluded from Net earnings (loss)	0	0	0	0
Impact of net unrealized investment gains (losses) on DAC	1	0	(2)	0
Impact of net unrealized investment gains (losses) on Deferred income taxes	1	1	(3)	2
Impact of net unrealized investment gains (losses) on policyholders liabilities	1	0	(10)	(4)
Balance, End of Period	1	11	1	11
AOCI Gain Losses Related to Net Unrealized Investment Gains Losses | Unrealized Investment Gains Losses All Other
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year	498	1,521	99	203
Net investment gains (losses) arising during the period	18	(17)	705	2,417
Included in Net income (loss)	(2)	0	28	(29)
Reclassification adjustment for OTTI losses excluded from Net earnings (loss)	0	0	0	0
Impact of net unrealized investment gains (losses) on DAC	(5)	79	79	48
Impact of net unrealized investment gains (losses) on Deferred income taxes	22	(21)	214	755
Impact of net unrealized investment gains (losses) on policyholders liabilities	(35)	4	43	222
Balance, End of Period	496	1,566	496	1,566
Fixed Maturities | Net Unrealized Gains (Losses) On Investments | Unrealized Investment Gains Losses With OTTI Losses
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year			19
Balance, End of Period	0		0
Fixed Maturities | Net Unrealized Gains (Losses) On Investments | Unrealized Investment Gains Losses All Other
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year			428
Balance, End of Period	1,161		1,161
Fixed Maturities | AOCI Gain Losses Related to Net Unrealized Investment Gains Losses | Unrealized Investment Gains Losses With OTTI Losses
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Included in Net income (loss)	11	1	(19)	7
Fixed Maturities | Net Unrealized Gains (Losses) On Investmetns | Unrealized Investment Gains Losses With OTTI Losses
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Included in Net income (loss)	11	$ 1	(19)	$ 7
Equity securities | Net Unrealized Gains (Losses) On Investments | Unrealized Investment Gains Losses All Other
Net Unrealized Investment Gains Losses Recognized In Aoci Roll Forward [Abstract]
Balance, beginning of year			0
Balance, End of Period	$ 0		$ 0