FAIR VALUE MEASUREMENTS (Details 11) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011
Assets:
Mortgage and other loans receivable	$ 19,488	$ 19,482
Short-term investments	23,336	28,808
Cash	1,227	1,151	1,315	1,474
Liabilities:
Other liabilities	33,108	32,068
Total Fair Value
Assets:
Mortgage and other loans receivable	20,719	20,219
Other invested assets	3,803	3,758
Short-term investments	16,924	20,752
Cash	1,227	1,151
Liabilities:
Policyholder contract deposits associated with investment-type contracts	123,077	124,105
Other liabilities	5,865	4,799
Long-term debt	42,948	45,891
Level 1
Assets:
Cash	1,227	1,151
Level 2
Assets:
Mortgage and other loans receivable	572	823
Other invested assets	57	237
Short-term investments	16,924	20,752
Liabilities:
Policyholder contract deposits associated with investment-type contracts	233	245
Other liabilities	4,239	3,981
Long-term debt	40,991	43,966
Level 3
Assets:
Mortgage and other loans receivable	20,147	19,396
Other invested assets	3,746	3,521
Liabilities:
Policyholder contract deposits associated with investment-type contracts	122,844	123,860
Other liabilities	1,626	818
Long-term debt	1,957	1,925
Carrying Value
Assets:
Mortgage and other loans receivable	19,430	19,348
Other invested assets	4,927	4,932
Short-term investments	16,924	20,752
Cash	1,227	1,151
Liabilities:
Policyholder contract deposits associated with investment-type contracts	105,680	105,979
Other liabilities	5,866	4,800
Long-term debt	$ 37,603	$ 40,445