REVISION OF PRIOR PERIOD FINANCIAL STATEMENTS - Cash Flow Disclosures (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Cash flow from operating activities:
Net income (loss)	[1]	$ (828)	$ (109)
Adjustments to reconcile Net income (loss) to Net cash provided by (used in) operating activities:
Interest credited to policyholders’ account balances		269	255
Policy charges and fee income		(859)	(861)
Net derivative (gains) losses		1,555	815
Equity (income) loss from limited partnerships	[2]	(11)	(39)
Changes in:
Capitalization of deferred policy acquisition costs	[2]	(145)	(135)
Future policy benefits		41	(198)
Current and deferred income taxes		54	80
Other, net		(36)	12
Net cash provided by (used in) operating activities		(148)	(17)
Proceeds from the sale/maturity/prepayment of:
Trading account securities		3,376	1,683
Real estate joint ventures		1	140
Short-term investments	[2]	747	688
Payment for the purchase/origination of:
Short-term investments	[2]	(681)	(377)
Cash settlements related to derivative instruments		(978)	(503)
Other, net		97	(407)
Net cash provided by (used in) investing activities		(694)	(983)
Policyholders’ account balances:
Deposits		2,271	1,898
Withdrawals		(1,048)	(1,081)
Transfers (to) from Separate Accounts		445	452
Net Cash Provided by (Used in) Financing Activities		1,142	1,380
Transfer of assets to reinsurer	[1]		(604)
(Settlement) issuance of long-term debt	[1]		(202)
Net (income) loss attributable to the noncontrolling interest		$ 2	(1)
As Previously Reported
Cash flow from operating activities:
Net income (loss)			(40)
Adjustments to reconcile Net income (loss) to Net cash provided by (used in) operating activities:
Interest credited to policyholders’ account balances			338
Policy charges and fee income			(869)
Net derivative (gains) losses			777
Amortization and depreciation			0
Amortization of deferred sales commission			7
Other depreciation and amortization			(23)
Amortization of other intangibles			8
Equity (income) loss from limited partnerships			0
Distributions from joint ventures and limited partnerships			25
Changes in:
Reinsurance recoverable			2
Deferred policy acquisition costs			10
Capitalization of deferred policy acquisition costs			0
Future policy benefits			(191)
Current and deferred income taxes			(52)
Other, net			(122)
Net cash provided by (used in) operating activities			(21)
Proceeds from the sale/maturity/prepayment of:
Trading account securities			1,606
Real estate joint ventures			0
Short-term investments			0
Other			54
Payment for the purchase/origination of:
Short-term investments			0
Cash settlements related to derivative instruments			(14)
Change in short-term investments			396
Other, net			(560)
Net cash provided by (used in) investing activities			(639)
Policyholders’ account balances:
Deposits			2,366
Withdrawals			(1,322)
Transfers (to) from Separate Accounts			(115)
Net Cash Provided by (Used in) Financing Activities			1,040
Transfer of assets to reinsurer			0
(Settlement) issuance of long-term debt			0
Presentation Reclassifications
Cash flow from operating activities:
Net income (loss)			0
Adjustments to reconcile Net income (loss) to Net cash provided by (used in) operating activities:
Interest credited to policyholders’ account balances			0
Policy charges and fee income			0
Net derivative (gains) losses			0
Amortization and depreciation			137
Amortization of deferred sales commission			(7)
Other depreciation and amortization			23
Amortization of other intangibles			(8)
Equity (income) loss from limited partnerships			(39)
Distributions from joint ventures and limited partnerships			(25)
Changes in:
Reinsurance recoverable			0
Deferred policy acquisition costs			(10)
Capitalization of deferred policy acquisition costs			(135)
Future policy benefits			0
Current and deferred income taxes			0
Other, net			64
Net cash provided by (used in) operating activities			0
Proceeds from the sale/maturity/prepayment of:
Trading account securities			0
Real estate joint ventures			140
Short-term investments			688
Other			(140)
Payment for the purchase/origination of:
Short-term investments			(377)
Cash settlements related to derivative instruments			0
Change in short-term investments			(311)
Other, net			0
Net cash provided by (used in) investing activities			0
Policyholders’ account balances:
Deposits			0
Withdrawals			0
Transfers (to) from Separate Accounts			0
Net Cash Provided by (Used in) Financing Activities			0
Transfer of assets to reinsurer			0
(Settlement) issuance of long-term debt			0
Impact of Revisions
Cash flow from operating activities:
Net income (loss)			(69)
Adjustments to reconcile Net income (loss) to Net cash provided by (used in) operating activities:
Interest credited to policyholders’ account balances			(83)
Policy charges and fee income			8
Net derivative (gains) losses			38
Amortization and depreciation			64
Amortization of deferred sales commission			0
Other depreciation and amortization			0
Amortization of other intangibles			0
Equity (income) loss from limited partnerships			0
Distributions from joint ventures and limited partnerships			0
Changes in:
Reinsurance recoverable			(149)
Deferred policy acquisition costs			0
Capitalization of deferred policy acquisition costs			0
Future policy benefits			(7)
Current and deferred income taxes			132
Other, net			70
Net cash provided by (used in) operating activities			4
Proceeds from the sale/maturity/prepayment of:
Trading account securities			77
Real estate joint ventures			0
Short-term investments			0
Other			0
Payment for the purchase/origination of:
Short-term investments			0
Cash settlements related to derivative instruments			(489)
Change in short-term investments			(85)
Other, net			153
Net cash provided by (used in) investing activities			(344)
Policyholders’ account balances:
Deposits			(468)
Withdrawals			241
Transfers (to) from Separate Accounts			567
Net Cash Provided by (Used in) Financing Activities			340
Transfer of assets to reinsurer			202
(Settlement) issuance of long-term debt			(604)
As Revised
Cash flow from operating activities:
Net income (loss)			(109)
Adjustments to reconcile Net income (loss) to Net cash provided by (used in) operating activities:
Interest credited to policyholders’ account balances			255
Policy charges and fee income			(861)
Net derivative (gains) losses			815
Amortization and depreciation			201
Amortization of deferred sales commission			0
Other depreciation and amortization			0
Amortization of other intangibles			0
Equity (income) loss from limited partnerships			(39)
Distributions from joint ventures and limited partnerships			0
Changes in:
Reinsurance recoverable			(147)
Deferred policy acquisition costs			0
Capitalization of deferred policy acquisition costs			(135)
Future policy benefits			(198)
Current and deferred income taxes			80
Other, net			12
Net cash provided by (used in) operating activities			(17)
Proceeds from the sale/maturity/prepayment of:
Trading account securities			1,683
Real estate joint ventures			140
Short-term investments			688
Other			(86)
Payment for the purchase/origination of:
Short-term investments			(377)
Cash settlements related to derivative instruments			(503)
Change in short-term investments			0
Other, net			(407)
Net cash provided by (used in) investing activities			(983)
Policyholders’ account balances:
Deposits			1,898
Withdrawals			(1,081)
Transfers (to) from Separate Accounts			452
Net Cash Provided by (Used in) Financing Activities			1,380
Transfer of assets to reinsurer			202
(Settlement) issuance of long-term debt			(604)
Discontinued Operations | Alliance Bernstein
Adjustments to reconcile Net income (loss) to Net cash provided by (used in) operating activities:
Net derivative (gains) losses			(2)
Policyholders’ account balances:
Net (income) loss attributable to the noncontrolling interest			$ 155

[1] Net income (loss) includes $155 million in the three months ended March 31, 2018 of the discontinued operations that are not included in Net income (loss) in the Consolidated Statements of Income (Loss).

[2] Prior period amounts have been reclassified to conform to the current period’s presentation. See Note 14 for further information.