VARIABLE INTEREST ENTITIES (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Assets:
Bonds available for sale	$ 256,746.0	$ 264,254.0
Other bond securities	16,822.0	19,712.0
Mortgage and other loans receivable	28,236.0	24,990.0
Other invested assets	31,123.0	34,518.0
Liabilities:
Long-term debt	30,719.0	31,217.0
Real estate and investment funds
Liabilities:
Off-balance sheet exposure	127.2	56.4
Consolidated VIE
Assets:
Bonds available for sale	10,939.0	11,494.0
Other bond securities	6,798.0	7,906.0
Mortgage and other loans receivable	2,244.0	2,560.0
Other invested assets	3,796.0	2,941.0
Other assets	1,279.0	1,752.0
Total assets	25,056.0	26,653.0
Liabilities:
Long-term debt	2,766.0	1,697.0
Other liabilities	557.0	446.0
Total liabilities	3,323.0	2,143.0
Consolidated VIE | Real estate and investment funds
Assets:
Mortgage and other loans receivable	1.0
Other invested assets	546.0	577.0
Other assets	54.0	40.0
Total assets	601.0	617.0
Liabilities:
Long-term debt	23.0	69.0
Other liabilities	51.0	32.0
Total liabilities	74.0	101.0
Consolidated VIE | Securitization vehicles
Assets:
Bonds available for sale	10,915.0	11,459.0
Other bond securities	6,310.0	7,251.0
Mortgage and other loans receivable	2,104.0	2,398.0
Other invested assets	583.0	651.0
Other assets	814.0	1,447.0
Total assets	20,726.0	23,206.0
Liabilities:
Long-term debt	1,145.0	1,370.0
Other liabilities	249.0	276.0
Total liabilities	1,394.0	1,646.0
Investment-grade debt securities, loans and other assets	0.0	0.0
Consolidated VIE | Structured investment vehicle
Assets:
Other bond securities	451.0	615.0
Other assets	73.0	140.0
Total assets	524.0	755.0
Liabilities:
Long-term debt	54.0	52.0
Other liabilities	0.0
Total liabilities	54.0	52.0
Consolidated VIE | Affordable housing partnerships
Assets:
Other invested assets	2,644.0	1,684.0
Other assets	247.0	49.0
Total assets	2,891.0	1,733.0
Liabilities:
Long-term debt	1,538.0	199.0
Other liabilities	186.0	101.0
Total liabilities	1,724.0	300.0
Consolidated VIE | Other
Assets:
Bonds available for sale	24.0	35.0
Other bond securities	37.0	40.0
Mortgage and other loans receivable	139.0	162.0
Other invested assets	23.0	29.0
Other assets	91.0	76.0
Total assets	314.0	342.0
Liabilities:
Long-term debt	6.0	7.0
Other liabilities	71.0	37.0
Total liabilities	77.0	44.0
Unconsolidated VIE
Assets:
Other invested assets	4,100.0	3,200.0
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	28,216.0	29,819.0
Maximum Exposure to Loss, On-Balance Sheet	4,425.0	3,514.0
Maximum Exposure to Loss, Off-Balance Sheet	1,385.0	1,446.0
Total maximum exposure to loss	5,810.0	4,960.0
Unconsolidated VIE | Real estate and investment funds
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	21,844.0	19,949.0
Maximum Exposure to Loss, On-Balance Sheet	3,179.0	2,785.0
Maximum Exposure to Loss, Off-Balance Sheet	393.0	454.0
Total maximum exposure to loss	3,572.0	3,239.0
Unconsolidated VIE | Affordable housing partnerships
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	5,262.0	7,911.0
Maximum Exposure to Loss, On-Balance Sheet	1,004.0	425.0
Total maximum exposure to loss	1,004.0	425.0
Unconsolidated VIE | Other
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	1,110.0	1,959.0
Maximum Exposure to Loss, On-Balance Sheet	242.0	304.0
Maximum Exposure to Loss, Off-Balance Sheet	992.0	992.0
Total maximum exposure to loss	$ 1,234.0	1,296.0
Unconsolidated VIE | Other | Scenario Previously Reported Member
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Maximum Exposure to Loss, On-Balance Sheet		32.0
Maximum Exposure to Loss, Off-Balance Sheet		$ 0.0