FAIR VALUE MEASUREMENTS (Details 13) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Assets:
Mortgage and other loans receivable	$ 19,482	$ 19,489
Short-term investments	28,808	22,572
Cash	1,151	1,474	1,558	4,400
Liabilities:
Other liabilities	32,114	28,248
Long-term debt	48,500	75,253
Total Fair Value
Assets:
Mortgage and other loans receivable	20,219	20,494
Other invested assets	3,758	3,390
Short-term investments	20,752	16,657
Cash	1,151	1,474
Liabilities:
Policyholder contract deposits associated with investment-type contracts	124,105	122,125
Other liabilities	3,023	896
Long-term debt	45,891	61,295
Level 1
Assets:
Cash	1,151
Level 2
Assets:
Mortgage and other loans receivable	823
Other invested assets	237
Short-term investments	20,752
Liabilities:
Policyholder contract deposits associated with investment-type contracts	245
Other liabilities	2,205
Long-term debt	43,966
Level 3
Assets:
Mortgage and other loans receivable	19,396
Other invested assets	3,521
Liabilities:
Policyholder contract deposits associated with investment-type contracts	123,860
Other liabilities	818
Long-term debt	1,925
Carrying Value
Assets:
Mortgage and other loans receivable	19,348	19,382
Other invested assets	4,932	4,701
Short-term investments	20,752	16,659
Cash	1,151	1,474
Liabilities:
Policyholder contract deposits associated with investment-type contracts	105,979	106,950
Other liabilities	3,024	896
Long-term debt	$ 40,445	$ 64,487