VARIABLE INTEREST ENTITIES (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Assets:
Bonds available for sale	$ 241,537.0	$ 248,245.0
Other bond securities	13,998.0	16,782.0
Mortgage and other loans receivable	33,240.0	29,565.0
Other invested assets	24,538.0	29,794.0
Liabilities:
Long-term Debt	30,912.0	29,249.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	24,538.0	29,794.0
Held for sale [Member]
Assets:
Mortgage and other loans receivable	137.0
Other invested assets	2.0
Liabilities:
Long-term Debt	0.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	2.0
Real Estate and Investment Funds
Liabilities:
Off-balance sheet exposure	106.0	131.0
Structured Investment Vehicles | Minimum
Assets:
Total assets	0.0	0.0
Consolidated VIE
Assets:
Bonds available for sale	10,233.0	10,324.0
Other bond securities	5,129.0	6,167.0
Mortgage and other loans receivable	1,547.0	2,093.0
Other invested assets	4,222.0	3,598.0
Other assets	1,995.0	1,924.0
Total assets	23,126.0	24,106.0
Liabilities:
Long-term Debt	2,973.0	2,597.0
Other liabilities	677.0	556.0
Total liabilities	3,650.0	3,153.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	4,222.0	3,598.0
Consolidated VIE | Real Estate and Investment Funds
Assets:
Bonds available for sale	0.0	0.0
Other bond securities	0.0	0.0
Mortgage and other loans receivable	1.0	1.0
Other invested assets	1,052.0	489.0
Other assets	365.0	29.0
Total assets	1,418.0	519.0
Liabilities:
Long-term Debt	444.0	0.0
Other liabilities	224.0	34.0
Total liabilities	668.0	34.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	1,052.0	489.0
Consolidated VIE | Securitization Vehicles
Assets:
Bonds available for sale	10,233.0	10,309.0
Other bond securities	4,858.0	5,756.0
Mortgage and other loans receivable	1,442.0	1,960.0
Other invested assets	321.0	477.0
Other assets	1,104.0	1,349.0
Total assets	17,958.0	19,851.0
Liabilities:
Long-term Debt	771.0	1,025.0
Other liabilities	203.0	236.0
Total liabilities	974.0	1,261.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	321.0	477.0
Total assets of consolidated securitization vehicles owed to Parent or its subsidiaries	17,300.0
Consolidated VIE | Structured Investment Vehicles
Assets:
Bonds available for sale	0.0	0.0
Other bond securities	266.0	387.0
Mortgage and other loans receivable	0.0	0.0
Other invested assets	0.0	0.0
Other assets	50.0	94.0
Total assets	316.0	481.0
Liabilities:
Long-term Debt	56.0	53.0
Other liabilities	1.0	1.0
Total liabilities	57.0	54.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	0.0	0.0
Consolidated VIE | Affordable Housing Partnerships
Assets:
Bonds available for sale	0.0	0.0
Other bond securities	0.0	0.0
Mortgage and other loans receivable	0.0	0.0
Other invested assets	2,821.0	2,608.0
Other assets	384.0	293.0
Total assets	3,205.0	2,901.0
Liabilities:
Long-term Debt	1,696.0	1,513.0
Other liabilities	211.0	214.0
Total liabilities	1,907.0	1,727.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	2,821.0	2,608.0
Consolidated VIE | Other
Assets:
Bonds available for sale	0.0	15.0
Other bond securities	5.0	24.0
Mortgage and other loans receivable	104.0	132.0
Other invested assets	28.0	24.0
Other assets	92.0	159.0
Total assets	229.0	354.0
Liabilities:
Long-term Debt	6.0	6.0
Other liabilities	38.0	71.0
Total liabilities	44.0	77.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	28.0	24.0
Unconsolidated VIE
Assets:
Other invested assets	11,700.0	3,800.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	416,665.0	28,316.0
Maximum Exposure to Loss, On-Balance Sheet	12,114.0	4,061.0
Maximum Exposure to Loss, Off-Balance Sheet	3,160.0	1,398.0
Total maximum exposure to loss	15,274.0	5,459.0
Other invested assets	11,700.0	3,800.0
Unconsolidated VIE | Real Estate and Investment Funds
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	409,087.0	21,951.0
Maximum Exposure to Loss, On-Balance Sheet	11,015.0	3,072.0
Maximum Exposure to Loss, Off-Balance Sheet	2,115.0	398.0
Total maximum exposure to loss	13,130.0	3,470.0
Unconsolidated VIE | Affordable Housing Partnerships
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	4,709.0	5,255.0
Maximum Exposure to Loss, On-Balance Sheet	785.0	774.0
Maximum Exposure to Loss, Off-Balance Sheet	0.0	0.0
Total maximum exposure to loss	785.0	774.0
Unconsolidated VIE | Other
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	2,869.0	1,110.0
Maximum Exposure to Loss, On-Balance Sheet	314.0	215.0
Maximum Exposure to Loss, Off-Balance Sheet	1,045.0	1,000.0
Total maximum exposure to loss	1,359.0	$ 1,215.0
Unconsolidated VIE | Maiden Lane II and III interests
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	0.0
Maximum Exposure to Loss, On-Balance Sheet	0.0
Maximum Exposure to Loss, Off-Balance Sheet	0.0
Total maximum exposure to loss	$ 0.0