Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Amount of fees earned from providing investment advice and research to customers.

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Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale that are pledged to one or more secured parties who have the right to buy, sell, or re-pledge the collateral.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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SEGMENT INFORMATION (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
SEGMENT INFORMATION (Details) - USD ($) $ in Millions	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Segment revenues	$ 4,575	$ 4,299	$ 6,717	$ 9,328	$ 9,683	$ 9,925	$ 15,677
Segment earnings (loss) from continuing operations, before income taxes	1,797	1,594	1,224	4,097
Segment assets	214,941		214,941		203,719	$ 194,683
Consolidation/Elimination
Segment Reporting Information [Line Items]
Segment revenues	(5)	(7)	(12)	(12)
Segment earnings (loss) from continuing operations, before income taxes	1	0	0	1
Segment assets	0		0		(3)
Insurance
Segment Reporting Information [Line Items]
Segment revenues	3,767	3,582	5,160	7,847
Segment earnings (loss) from continuing operations, before income taxes	1,628	1,456	904	3,789
Segment assets	201,076		201,076		190,583
Insurance \| Intersegment Eliminations
Segment Reporting Information [Line Items]
Segment interest expense, debt	13	13	24	25
Investment Management
Segment Reporting Information [Line Items]
Segment revenues	813	724	1,569	1,493
Segment earnings (loss) from continuing operations, before income taxes	168	138	320	307
Segment assets	13,865		13,865		13,139
Fair value of marketable securities	1,007		1,007		893
Cash segregated in special bank accounts	71		71		$ 53
Investment Management \| Intersegment Eliminations
Segment Reporting Information [Line Items]
Segment investment advisory fees	$ 18	$ 20	$ 36	$ 37