FAIR VALUE MEASUREMENTS (Details - Assets and Liabilities Measured at Fair Value on a Recurring Basis) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	$ 238,201		$ 229,391
Other bond securities	11,511		11,415
Equity securities	841		1,253
Other invested assets	5,759		5,894
Derivative Assets, Fair Value, Gross	4,273		4,468
Derivative assets, Counterparty netting	(1,647)		(1,713)
Derivative assets, Cash collateral	(1,734)		(1,840)
Derivative assets	892		915
Short-term investments, portion measured at fair value	4,040		3,015
Separate account assets, at fair value	88,818		81,847
Other assets	951		973
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	4,878		4,116
Other policyholder funds	3,493		3,568
Derivative Liabilities, Fair Value, Gross	3,066		3,138
Derivative liabilities, Counterparty netting	(1,647)		(1,713)
Derivative liabilities, Cash collateral	(188)		(187)
Derivative liabilities	1,231		1,238
Long-term debt, portion measured at fair value	2,263		2,213
Other liabilities	1,421		1,265
U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Assets transferred from Level 1 to Level 2	51	$ 191
Non-U.S. governments
Fair Value, Assets Measured on Recurring Basis
Assets transferred from Level 1 to Level 2	62	$ 16
Recurring Basis
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	238,201		229,391
Other bond securities	11,511		11,415
Equity securities	841		1,253
Other invested assets	677		928
Derivative assets, Counterparty netting	(1,647)		(1,713)
Derivative assets, Cash collateral	(1,734)		(1,840)
Derivative assets, Counterparty netting and cash collateral	(3,381)		(3,553)
Derivative assets	892		915
Short-term investments, portion measured at fair value	4,040		3,015
Separate account assets, at fair value	88,818		81,847
Other assets	59		58
Fair value assets measured on recurring basis, total	345,039		328,822
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	4,878		4,116
Derivative liabilities, Counterparty netting	(1,647)		(1,713)
Derivative liabilities, Cash collateral	(188)		(187)
Derivative liabilities, Counterparty netting and cash collateral	(1,835)		(1,900)
Derivative liabilities	1,231		1,238
Long-term debt, portion measured at fair value	2,263		2,213
Other liabilities	190		27
Fair value liabilities measured on recurring basis, total	8,562		7,594
Recurring Basis | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	2,664		2,890
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	1,920		2,023
Recurring Basis | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	1,107		1,164
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	850		858
Recurring Basis | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	488		398
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	51		15
Recurring Basis | Credit contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	1		1
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	240		236
Recurring Basis | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	13		15
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	5		6
Recurring Basis | U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	3,401		3,260
Other bond securities	2,780		2,665
Recurring Basis | Obligations of states, municipalities and political subdivisions
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	15,922		16,001
Recurring Basis | Non-U.S. governments
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	15,274		14,525
Other bond securities	51		45
Recurring Basis | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	138,673		130,700
Other bond securities	1,745		1,671
Recurring Basis | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	34,004		34,377
Other bond securities	1,757		1,714
Recurring Basis | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	13,161		12,701
Other bond securities	399		388
Recurring Basis | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	17,766		17,827
Other bond securities	4,779		4,932
Recurring Basis | Level 1
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	15		122
Other bond securities	84		11
Equity securities	804		1,213
Other invested assets	0		0
Derivative Assets, Fair Value, Gross	59		135
Short-term investments, portion measured at fair value	1,993		2,416
Separate account assets, at fair value	84,260		77,202
Other assets	0		0
Fair value assets measured on recurring basis, total	87,215		81,099
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	0		0
Other policyholder funds	0
Derivative Liabilities, Fair Value, Gross	12		16
Long-term debt, portion measured at fair value	0		0
Other liabilities	105		16
Fair value liabilities measured on recurring basis, total	117		32
Recurring Basis | Level 1 | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	4		2
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	0		4
Recurring Basis | Level 1 | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	0		0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	0		0
Recurring Basis | Level 1 | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	55		133
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	12		12
Recurring Basis | Level 1 | Credit contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	0		0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	0		0
Recurring Basis | Level 1 | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	0		0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	0		0
Recurring Basis | Level 1 | U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0		53
Other bond securities	84		11
Recurring Basis | Level 1 | Obligations of states, municipalities and political subdivisions
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0		0
Other bond securities	0		0
Recurring Basis | Level 1 | Non-U.S. governments
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	15		69
Other bond securities	0		0
Recurring Basis | Level 1 | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0		0
Other bond securities	0		0
Recurring Basis | Level 1 | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0		0
Other bond securities	0		0
Recurring Basis | Level 1 | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0		0
Other bond securities	0		0
Recurring Basis | Level 1 | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0		0
Other bond securities	0		0
Recurring Basis | Level 2
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	210,738		202,176
Other bond securities	5,828		5,559
Equity securities	11		13
Other invested assets	86		341
Derivative Assets, Fair Value, Gross	4,096		4,237
Short-term investments, portion measured at fair value	2,047		599
Separate account assets, at fair value	4,558		4,645
Other assets	0		0
Fair value assets measured on recurring basis, total	227,364		217,570
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	0		0
Other policyholder funds	0
Derivative Liabilities, Fair Value, Gross	2,804		2,873
Long-term debt, portion measured at fair value	2,263		2,213
Other liabilities	85		11
Fair value liabilities measured on recurring basis, total	5,152		5,097
Recurring Basis | Level 2 | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	2,660		2,888
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	1,905		2,004
Recurring Basis | Level 2 | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	1,106		1,159
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	850		858
Recurring Basis | Level 2 | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	330		190
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	32		3
Recurring Basis | Level 2 | Credit contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	0		0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	17		8
Recurring Basis | Level 2 | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	0		0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	0		0
Recurring Basis | Level 2 | U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	3,401		3,207
Other bond securities	2,696		2,654
Recurring Basis | Level 2 | Obligations of states, municipalities and political subdivisions
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	13,786		14,001
Other bond securities	0		0
Recurring Basis | Level 2 | Non-U.S. governments
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	15,256		14,445
Other bond securities	51		45
Recurring Basis | Level 2 | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	137,141		129,836
Other bond securities	1,745		1,671
Recurring Basis | Level 2 | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	19,959		20,178
Other bond securities	491		424
Recurring Basis | Level 2 | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	12,269		11,784
Other bond securities	315		311
Recurring Basis | Level 2 | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	8,926		8,725
Other bond securities	530		454
Recurring Basis | Level 3
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	27,448		27,093
Other bond securities	5,599		5,845
Equity securities	26		27
Other invested assets	591		587
Derivative Assets, Fair Value, Gross	118		96
Short-term investments, portion measured at fair value	0		0
Separate account assets, at fair value	0		0
Other assets	59		58
Fair value assets measured on recurring basis, total	33,841		33,706
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	4,878		4,116
Other policyholder funds	0
Derivative Liabilities, Fair Value, Gross	250		249
Long-term debt, portion measured at fair value	0		0
Other liabilities	0		0
Fair value liabilities measured on recurring basis, total	5,128		4,365
Recurring Basis | Level 3 | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	0		0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	15		15
Recurring Basis | Level 3 | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	1		5
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	0		0
Recurring Basis | Level 3 | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	103		75
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	7		0
Recurring Basis | Level 3 | Credit contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	1		1
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	223		228
Recurring Basis | Level 3 | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	13		15
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	5		6
Recurring Basis | Level 3 | U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0		0
Other bond securities	0		0
Recurring Basis | Level 3 | Obligations of states, municipalities and political subdivisions
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	2,136		2,000
Other bond securities	0		0
Recurring Basis | Level 3 | Non-U.S. governments
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	3		11
Other bond securities	0		0
Recurring Basis | Level 3 | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	1,532		864
Other bond securities	0		0
Recurring Basis | Level 3 | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	14,045		14,199
Other bond securities	1,266		1,290
Recurring Basis | Level 3 | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	892		917
Other bond securities	84		77
Recurring Basis | Level 3 | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	8,840		9,102
Other bond securities	$ 4,249		$ 4,478