COMMITMENT AND CONTINGENT LIABILITIES (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Restructuring and Related Cost [Abstract]
Advances from Federal Home Loan Banks	$ 2,511		$ 2,238
Proceeds from Federal Home Loan Bank Borrowings	1,773		7,738
Repayments of Federal Home Loan Bank Borrowings	1,500		6,000
AXA Equitable
Restructuring and Related Cost [Abstract]
Letters of credit outstanding	18
Equity financing arrangements with Limited Partnerships	682
Equity financing arrangements with affiliates	236
Mortgage loans on real estate	726
Facility Closing \| Other Operating Costs and Expenses \| Alliance Bernstein \| AB Consolidation Plan
Restructuring and Related Cost [Abstract]
Restructuring Charges		$ 25
Federal Home Loan Bank of New York Short-Term Funding Agreements Maturing in Less than One Month [Member]
Restructuring and Related Cost [Abstract]
Advances from Federal Home Loan Banks	500		500
Proceeds from Federal Home Loan Bank Borrowings	1,500		6,000
Repayments of Federal Home Loan Bank Borrowings	1,500		6,000
Federal Home Loan Bank of New York Long-Term Funding Agreements Maturing in Less than Four Years [Member]
Restructuring and Related Cost [Abstract]
Advances from Federal Home Loan Banks	232		58
Proceeds from Federal Home Loan Bank Borrowings	174		58
Repayments of Federal Home Loan Bank Borrowings	0		0
Federal Home Loan Bank of New York Long-Term Funding Agreements Maturing in Less than Five Years [Member]
Restructuring and Related Cost [Abstract]
Advances from Federal Home Loan Banks	1,035		862
Proceeds from Federal Home Loan Bank Borrowings	99		862
Repayments of Federal Home Loan Bank Borrowings	0		0
Federal Home Loan Bank of New York Long-Term Funding Agreements Maturing in Greater than Five Years [Member]
Restructuring and Related Cost [Abstract]
Advances from Federal Home Loan Banks	744		818
Proceeds from Federal Home Loan Bank Borrowings	0		818
Repayments of Federal Home Loan Bank Borrowings	0		0
Federal Home Loan Bank of New York Long-Term Funding Agreements [Member]
Restructuring and Related Cost [Abstract]
Advances from Federal Home Loan Banks	2,011		1,738
Proceeds from Federal Home Loan Bank Borrowings	273		1,738
Repayments of Federal Home Loan Bank Borrowings	$ 0		$ 0

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Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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