EMPLOYEE BENEFIT PLANS (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
401(k) contribution expense recognized	$ 4,000,000	$ 4,000,000
Alliance Bernstein
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, employer discretionary contribution amount	0
Defined contribution plan, minimum employer discretionary contribution	0
AB Qualified Retirement Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	2,000,000
Interest cost	1,000,000	23,000,000
Expected return on assets	(1,000,000)	(39,000,000)
Net amortization	0	30,000,000
Net Periodic Pension Expense	$ 0	$ 16,000,000