FAIR VALUE MEASUREMENTS (Details - Assets measured at fair value on a non-recurring basis at the time of impairment and the related impairment charges recorded during the periods presented) - Fair value on a non-recurring basis - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Fair Value Assets Impairment Charges Measured on Nonrecurring Basis [Domain]
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Impairment Charges	$ 130	$ 103	$ 289	$ 202
Other investments
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Impairment Charges	29	27	31	52
Investments in life settlements
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Impairment Charges	92	72	249	142
Other assets
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Impairment Charges	9	$ 4	9	$ 8
Level 3 | Fair Value Assets Impairment Charges Measured on Nonrecurring Basis [Domain]
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	711		711		$ 2,074
Level 3 | Other investments
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	176		176		1,117
Level 3 | Investments in life settlements
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	534		534		828
Level 3 | Other assets
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	1		1		129
Total Fair Value | Fair Value Assets Impairment Charges Measured on Nonrecurring Basis [Domain]
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	711		711		2,074
Total Fair Value | Other investments
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	176		176		1,117
Total Fair Value | Investments in life settlements
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	534		534		828
Total Fair Value | Other assets
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	$ 1		$ 1		$ 129