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, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Fair Value Assets Impairment Charges Measured on Nonrecurring Basis [Domain]
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Impairment Charges	$ 79	$ 130	$ 172	$ 289
Other investments
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Impairment Charges	33	29	50	31
Investments in life settlements
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Impairment Charges	46	92	87	249
Other assets
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Impairment Charges	0	$ 9	35	$ 9
Other assets | Held for sale [Member]
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Impairment Charges	0		35
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	270		270		$ 1,102
Level 3 | Other investments
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	17		17		364
Level 3 | Investments in life settlements
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	253		253		736
Level 3 | Other assets
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	0		0		2
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	270		270		1,102
Total Fair Value | Other investments
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	17		17		364
Total Fair Value | Investments in life settlements
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	253		253		736
Total Fair Value | Other assets
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	0		0		$ 2
Total Fair Value | Other assets | Held for sale [Member]
FAIR VALUE, ASSETS MEASUREMENTS ON A NON-RECURRING BASIS
Assets at Fair Value, Non-Recurring Basis	$ 0		$ 0