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SHARE-BASED COMPENSATION PROGRAMS (Details)					3 Months Ended		9 Months Ended
SHARE-BASED COMPENSATION PROGRAMS (Details)	Jun. 06, 2016 USD ($) Rate shares	Jun. 06, 2016 € / shares	Mar. 22, 2016 USD ($) shares	Mar. 16, 2016 USD ($) shares	Sep. 30, 2016 USD ($) shares	Sep. 30, 2015 USD ($) shares	Sep. 30, 2016 USD ($) shares	Sep. 30, 2016 € / shares	Sep. 30, 2015 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense					$ 4,617,000	$ 6,153,000	$ 21,440,000		$ 24,637,000
Purchased Holding Units to help fund anticipated obligations under its incentive compensation award program Value							$ 129,000,000		$ 100,000,000
Alliance Bernstein
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchased Holding Units to help fund anticipated obligations under its incentive compensation award program shares (in shares) \| shares					2,000,000	3,000,000	5,800,000		3,800,000
Open market purchase (in shares) \| shares					2,000,000	3,000,000	5,700,000		3,700,000
Open market purchase value					$ 45,000,000	$ 82,000,000	$ 127,000,000		$ 101,000,000
Restricted holding unit awards granted to employees (in shares) \| shares							100,000		500,000
Purchased Holding Units to help fund anticipated obligations under its incentive compensation award program Value					45,000,000	82,000,000	$ 129,000,000		$ 103,000,000
Proceeds from Stock Options Exercised							2,000,000		9,000,000
Performance Units/Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense					2,953,000	3,200,000	14,774,000		14,226,000
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense					110,000	117,000	825,000		623,000
Employee Stock Option \| Alliance Bernstein
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense					200,000	2,900,000	200,000		9,300,000
Restricted Stock \| Alliance Bernstein
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense					1,200,000	0	6,400,000		0
Other compensation plan \| Parent Company
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense					154,000	$ (64,000)	(759,000)		$ 488,000
Performance Unit Plan 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation, Performance Shares Award Outstanding Activity [Table Text Block] \| shares	1,930,000
Share based compensation expense					1		9,000,000
Performance Unit Plan Year 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options equity settlement of vested units with ordinary shares value			$ 55,000,000
Performance shares earned (in shares) \| shares			2,293,998
Stock Option Plan 2016 \| Parent Company
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense					$ 31,000		$ 558,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross \| shares	576,169
Deferred Compensation Arrangement with Individual, Exercise Price \| € / shares		€ 21.52
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Conditional Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period \| shares	316,097
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value \| € / shares		€ 1.85
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate \| Rate	6.49%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate \| Rate	0.33%
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	$ 1
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate \| Rate	26.60%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term					8 years 1 month 6 days
AXA Shareplan Option A 2016 \| Parent Company
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Discount percentage on AXA ordinary shares							20.00%
Discounted price of AXA shares (in dollars per share) \| € / shares								€ 15.53
AXA Shareplan Option B 2016 \| Parent Company
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Discount percentage on AXA ordinary shares							8.63%
Discounted price of AXA shares (in dollars per share) \| € / shares								€ 17.73
Ordinary share price measurement period (52 weeks)							364 days
AXA Miles Program 2012 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options equity settlement of vested units with ordinary shares value				$ 4,000,000
Performance shares earned (in shares) \| shares				164,150
Employees and eligible Directors [Member] \| Alliance Bernstein
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted holding unit awards granted to employees (in shares) \| shares							700,000		300,000
Minimum \| Performance Unit Plan 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage							0.00%
Maximum \| Performance Unit Plan 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage							130.00%