VARIABLE INTEREST ENTITIES (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Assets:
Bonds available for sale	$ 253,785.0	$ 248,245.0
Other bond securities	15,344.0	16,782.0
Mortgage and other loans receivable	30,676.0	29,565.0
Other invested assets	28,480.0	29,794.0
Liabilities:
Long-term Debt	31,952.0	29,249.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	28,480.0	29,794.0
Real Estate and Investment Funds
Liabilities:
Off-balance sheet exposure	113.0	131.0
Consolidated VIE
Assets:
Bonds available for sale	10,309.0	10,324.0
Other bond securities	5,746.0	6,167.0
Mortgage and other loans receivable	1,869.0	2,093.0
Other invested assets	5,411.0	3,598.0
Other assets	2,010.0	1,924.0
Total assets	25,345.0	24,106.0
Liabilities:
Long-term Debt	4,153.0	2,597.0
Other liabilities	829.0	556.0
Total liabilities	4,982.0	3,153.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	5,411.0	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	2,074.0	489.0
Other assets	574.0	29.0
Total assets	2,649.0	519.0
Liabilities:
Long-term Debt	1,545.0	0.0
Other liabilities	259.0	34.0
Total liabilities	1,804.0	34.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	2,074.0	489.0
Consolidated VIE | Securitization Vehicles
Assets:
Bonds available for sale	10,294.0	10,309.0
Other bond securities	5,379.0	5,756.0
Mortgage and other loans receivable	1,743.0	1,960.0
Other invested assets	467.0	477.0
Other assets	918.0	1,349.0
Total assets	18,801.0	19,851.0
Liabilities:
Long-term Debt	915.0	1,025.0
Other liabilities	194.0	236.0
Total liabilities	1,109.0	1,261.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	467.0	477.0
Consolidated VIE | Structured Investment Vehicles
Assets:
Bonds available for sale	0.0	0.0
Other bond securities	358.0	387.0
Mortgage and other loans receivable	0.0	0.0
Other invested assets	0.0	0.0
Other assets	58.0	94.0
Total assets	416.0	481.0
Liabilities:
Long-term Debt	52.0	53.0
Other liabilities	1.0	1.0
Total liabilities	53.0	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	2,846.0	2,608.0
Other assets	301.0	293.0
Total assets	3,147.0	2,901.0
Liabilities:
Long-term Debt	1,636.0	1,513.0
Other liabilities	229.0	214.0
Total liabilities	1,865.0	1,727.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	2,846.0	2,608.0
Consolidated VIE | Other
Assets:
Bonds available for sale	15.0	15.0
Other bond securities	9.0	24.0
Mortgage and other loans receivable	125.0	132.0
Other invested assets	24.0	24.0
Other assets	159.0	159.0
Total assets	332.0	354.0
Liabilities:
Long-term Debt	5.0	6.0
Other liabilities	146.0	71.0
Total liabilities	151.0	77.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Other invested assets	24.0	24.0
Unconsolidated VIE
Assets:
Other invested assets	14,400.0	3,800.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	522,157.0	28,316.0
Maximum Exposure to Loss, On-Balance Sheet	14,834.0	4,061.0
Maximum Exposure to Loss, Off-Balance Sheet	3,137.0	1,398.0
Total maximum exposure to loss	17,971.0	5,459.0
Other invested assets	14,400.0	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	512,798.0	21,951.0
Maximum Exposure to Loss, On-Balance Sheet	13,724.0	3,072.0
Maximum Exposure to Loss, Off-Balance Sheet	2,038.0	398.0
Total maximum exposure to loss	15,762.0	3,470.0
Unconsolidated VIE | Affordable Housing Partnerships
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	4,992.0	5,255.0
Maximum Exposure to Loss, On-Balance Sheet	837.0	774.0
Maximum Exposure to Loss, Off-Balance Sheet	0.0	0.0
Total maximum exposure to loss	837.0	774.0
Unconsolidated VIE | Other
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	4,367.0	1,110.0
Maximum Exposure to Loss, On-Balance Sheet	273.0	215.0
Maximum Exposure to Loss, Off-Balance Sheet	1,099.0	1,000.0
Total maximum exposure to loss	$ 1,372.0	$ 1,215.0