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) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jun. 30, 2017
Fair Value Assets Impairment Charges Measured on Nonrecurring Basis [Domain]
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	$ 326	$ 55
Impairment Charges	161	594	$ 492
Other investments
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	315	55
Investments in life settlements
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	0	0
Other assets
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	11	0
Level 1 | Fair Value Assets Impairment Charges Measured on Nonrecurring Basis [Domain]
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 1 | Other investments
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 1 | Investments in life settlements
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 1 | Other assets
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 2 | Fair Value Assets Impairment Charges Measured on Nonrecurring Basis [Domain]
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 2 | Other investments
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 2 | Investments in life settlements
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 2 | Other assets
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 3 | Fair Value Assets Impairment Charges Measured on Nonrecurring Basis [Domain]
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	326	55
Level 3 | Other investments
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	315	55
Level 3 | Investments in life settlements
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	0	0
Level 3 | Other assets
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value	11	0
Fair value on a non-recurring basis | Other investments
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Impairment Charges	97	77	76
Fair value on a non-recurring basis | Investments in life settlements
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Impairment Charges	0	360	397
Fair value on a non-recurring basis | Other assets
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Impairment Charges	$ 64	157	$ 19
Fair value on a non-recurring basis | Other assets | Divested Businesses
Fair Value Assets Measured on Nonrecurring Basis [Line Items]
Fair Value				$ 179
Impairment Charges		$ 35