VARIABLE INTEREST ENTITIES (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Assets:
Bonds available for sale	$ 228,673	$ 238,992
Other bond securities	11,774	12,772
Mortgage and other loans receivable	39,978	37,023
Other invested assets	20,648	20,822
Liabilities:
Long-term Debt	33,784	31,640
Real Estate and Investment Entities
Liabilities:
Off-balance sheet exposure	237	86
Consolidated VIE
Assets:
Bonds available for sale	8,472	9,632
Other bond securities	4,202	4,521
Mortgage and other loans receivable	3,126	2,290
Other invested assets	4,815	4,683
Other assets	2,281	2,218
Total assets	22,896	23,344
Liabilities:
Long-term Debt	5,438	4,134
Other liabilities	401	595
Total liabilities	5,839	4,729
Consolidated VIE | Real Estate and Investment Entities
Assets:
Bonds available for sale	0	0
Other bond securities	0	0
Mortgage and other loans receivable	0	0
Other invested assets	1,524	1,365
Other assets	285	302
Total assets	1,809	1,667
Liabilities:
Long-term Debt	805	680
Other liabilities	129	144
Total liabilities	934	824
Consolidated VIE | Securitization Vehicles
Assets:
Bonds available for sale	8,472	9,632
Other bond securities	4,199	4,518
Mortgage and other loans receivable	3,126	2,290
Other invested assets	0	206
Other assets	1,507	1,481
Total assets	17,304	18,127
Liabilities:
Long-term Debt	2,687	1,624
Other liabilities	77	244
Total liabilities	2,764	1,868
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total assets of consolidated securitization vehicles owed to Parent or its subsidiaries	16,400	17,600
Consolidated VIE | Affordable Housing Partnerships
Assets:
Bonds available for sale	0	0
Other bond securities	0	0
Mortgage and other loans receivable	0	0
Other invested assets	3,264	3,087
Other assets	405	350
Total assets	3,669	3,437
Liabilities:
Long-term Debt	1,941	1,825
Other liabilities	170	181
Total liabilities	2,111	2,006
Consolidated VIE | Other
Assets:
Bonds available for sale	0	0
Other bond securities	3	3
Mortgage and other loans receivable	0	0
Other invested assets	27	25
Other assets	84	85
Total assets	114	113
Liabilities:
Long-term Debt	5	5
Other liabilities	25	26
Total liabilities	30	31
Unconsolidated VIE
Assets:
Other invested assets	9,000	9,800
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	355,668	387,201
Maximum Exposure to Loss, On-Balance Sheet	9,360	10,232
Maximum Exposure to Loss, Off-Balance Sheet	3,165	3,248
Total maximum exposure to loss	12,525	13,480
Unconsolidated VIE | Real Estate and Investment Entities
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	348,774	380,030
Maximum Exposure to Loss, On-Balance Sheet	8,426	9,253
Maximum Exposure to Loss, Off-Balance Sheet	1,946	2,043
Total maximum exposure to loss	10,372	11,296
Unconsolidated VIE | Affordable Housing Partnerships
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	4,094	4,468
Maximum Exposure to Loss, On-Balance Sheet	641	725
Maximum Exposure to Loss, Off-Balance Sheet	0	0
Total maximum exposure to loss	641	725
Unconsolidated VIE | Other
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets	2,800	2,703
Maximum Exposure to Loss, On-Balance Sheet	293	254
Maximum Exposure to Loss, Off-Balance Sheet	1,219	1,205
Total maximum exposure to loss	$ 1,512	$ 1,459