FAIR VALUE MEASUREMENTS (Details - Assets and Liabilities Measured at Fair Value on a Recurring Basis) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	$ 245,561,000,000		$ 245,561,000,000		$ 229,391,000,000
Other bond securities	10,461,000,000		10,461,000,000		11,415,000,000
Equity securities	880,000,000		880,000,000		1,253,000,000
Other invested assets	5,886,000,000		5,886,000,000		5,894,000,000
Derivative Assets, Fair Value, Gross	5,298,000,000		5,298,000,000		4,468,000,000
Derivative assets, Counterparty netting	(2,080,000,000)		(2,080,000,000)		(1,713,000,000)
Derivative assets, Cash collateral	(2,315,000,000)		(2,315,000,000)		(1,840,000,000)
Derivative assets	903,000,000		903,000,000		915,000,000
Short-term investments, portion measured at fair value	5,450,000,000		5,450,000,000		3,015,000,000
Separate account assets, at fair value	90,311,000,000		90,311,000,000		81,847,000,000
Other assets	964,000,000		964,000,000		973,000,000
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	6,065,000,000		6,065,000,000		4,116,000,000
Other policyholder funds	3,488,000,000		3,488,000,000		3,568,000,000
Derivative Liabilities, Fair Value, Gross	3,503,000,000		3,503,000,000		3,138,000,000
Derivative liabilities, Counterparty netting	(2,080,000,000)		(2,080,000,000)		(1,713,000,000)
Derivative liabilities, Cash collateral	(303,000,000)		(303,000,000)		(187,000,000)
Derivative liabilities	1,120,000,000		1,120,000,000		1,238,000,000
Long-term debt, portion measured at fair value	2,303,000,000		2,303,000,000		2,213,000,000
Other liabilities	1,232,000,000		1,232,000,000		1,265,000,000
Fair Value Using Net Asset Value Per Share or its equivalent	5,210,000,000		5,210,000,000		4,966,000,000
U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Assets transferred from Level 1 to Level 2	0	$ 490,000,000	51,000,000	$ 681,000,000
Non-U.S. governments
Fair Value, Assets Measured on Recurring Basis
Assets transferred from Level 1 to Level 2	0	$ 0	62,000,000	$ 16,000,000
Recurring Basis
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	245,561,000,000		245,561,000,000		229,391,000,000
Other bond securities	10,461,000,000		10,461,000,000		11,415,000,000
Equity securities	880,000,000		880,000,000		1,253,000,000
Other invested assets	676,000,000		676,000,000		928,000,000
Derivative assets, Counterparty netting	(2,080,000,000)		(2,080,000,000)		(1,713,000,000)
Derivative assets, Cash collateral	(2,315,000,000)		(2,315,000,000)		(1,840,000,000)
Derivative assets, Counterparty netting and cash collateral	(4,395,000,000)		(4,395,000,000)		(3,553,000,000)
Derivative assets	903,000,000		903,000,000		915,000,000
Short-term investments, portion measured at fair value	5,450,000,000		5,450,000,000		3,015,000,000
Separate account assets, at fair value	90,311,000,000		90,311,000,000		81,847,000,000
Other assets	61,000,000		61,000,000		58,000,000
Fair value assets measured on recurring basis, total	354,303,000,000		354,303,000,000		328,822,000,000
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	6,065,000,000		6,065,000,000		4,116,000,000
Derivative liabilities, Counterparty netting	(2,080,000,000)		(2,080,000,000)		(1,713,000,000)
Derivative liabilities, Cash collateral	(303,000,000)		(303,000,000)		(187,000,000)
Derivative liabilities, Counterparty netting and cash collateral	(2,383,000,000)		(2,383,000,000)		(1,900,000,000)
Derivative liabilities	1,120,000,000		1,120,000,000		1,238,000,000
Long-term debt, portion measured at fair value	2,303,000,000		2,303,000,000		2,213,000,000
Other liabilities	112,000,000		112,000,000		27,000,000
Fair value liabilities measured on recurring basis, total	9,600,000,000		9,600,000,000		7,594,000,000
Recurring Basis | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	3,275,000,000		3,275,000,000		2,890,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	2,295,000,000		2,295,000,000		2,023,000,000
Recurring Basis | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	1,266,000,000		1,266,000,000		1,164,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	960,000,000		960,000,000		858,000,000
Recurring Basis | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	743,000,000		743,000,000		398,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	47,000,000		47,000,000		15,000,000
Recurring Basis | Credit contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	1,000,000		1,000,000		1,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	195,000,000		195,000,000		236,000,000
Recurring Basis | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	13,000,000		13,000,000		15,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	6,000,000		6,000,000		6,000,000
Recurring Basis | U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	4,228,000,000		4,228,000,000		3,260,000,000
Other bond securities	2,199,000,000		2,199,000,000		2,665,000,000
Recurring Basis | Obligations of states, municipalities and political subdivisions
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	15,946,000,000		15,946,000,000		16,001,000,000
Recurring Basis | Non-U.S. governments
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	15,400,000,000		15,400,000,000		14,525,000,000
Other bond securities	56,000,000		56,000,000		45,000,000
Recurring Basis | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	144,560,000,000		144,560,000,000		130,700,000,000
Other bond securities	1,798,000,000		1,798,000,000		1,671,000,000
Recurring Basis | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	33,176,000,000		33,176,000,000		34,377,000,000
Other bond securities	1,324,000,000		1,324,000,000		1,714,000,000
Recurring Basis | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	13,624,000,000		13,624,000,000		12,701,000,000
Other bond securities	418,000,000		418,000,000		388,000,000
Recurring Basis | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	18,627,000,000		18,627,000,000		17,827,000,000
Other bond securities	4,666,000,000		4,666,000,000		4,932,000,000
Recurring Basis | Level 1
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	180,000,000		180,000,000		122,000,000
Other bond securities	22,000,000		22,000,000		11,000,000
Equity securities	829,000,000		829,000,000		1,213,000,000
Other invested assets	0		0		0
Derivative Assets, Fair Value, Gross	77,000,000		77,000,000		135,000,000
Short-term investments, portion measured at fair value	2,368,000,000		2,368,000,000		2,416,000,000
Separate account assets, at fair value	85,803,000,000		85,803,000,000		77,202,000,000
Other assets	0		0		0
Fair value assets measured on recurring basis, total	89,279,000,000		89,279,000,000		81,099,000,000
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	0		0		0
Derivative Liabilities, Fair Value, Gross	21,000,000		21,000,000		16,000,000
Long-term debt, portion measured at fair value	0		0		0
Other liabilities	90,000,000		90,000,000		16,000,000
Fair value liabilities measured on recurring basis, total	111,000,000		111,000,000		32,000,000
Recurring Basis | Level 1 | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	0		0		2,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	2,000,000		2,000,000		4,000,000
Recurring Basis | Level 1 | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	0		0		0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	0		0		0
Recurring Basis | Level 1 | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	77,000,000		77,000,000		133,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	19,000,000		19,000,000		12,000,000
Recurring Basis | Level 1 | Credit contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	0		0		0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	0		0		0
Recurring Basis | Level 1 | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	0		0		0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	0		0		0
Recurring Basis | Level 1 | U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	105,000,000		105,000,000		53,000,000
Other bond securities	22,000,000		22,000,000		11,000,000
Recurring Basis | Level 1 | Obligations of states, municipalities and political subdivisions
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0		0		0
Recurring Basis | Level 1 | Non-U.S. governments
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	75,000,000		75,000,000		69,000,000
Other bond securities	0		0		0
Recurring Basis | Level 1 | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0		0		0
Other bond securities	0		0		0
Recurring Basis | Level 1 | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0		0		0
Other bond securities	0		0		0
Recurring Basis | Level 1 | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0		0		0
Other bond securities	0		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		0
Other bond securities	0		0		0
Recurring Basis | Level 2
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	217,368,000,000		217,368,000,000		202,176,000,000
Other bond securities	5,371,000,000		5,371,000,000		5,559,000,000
Equity securities	16,000,000		16,000,000		13,000,000
Other invested assets	71,000,000		71,000,000		341,000,000
Derivative Assets, Fair Value, Gross	5,085,000,000		5,085,000,000		4,237,000,000
Short-term investments, portion measured at fair value	3,082,000,000		3,082,000,000		599,000,000
Separate account assets, at fair value	4,508,000,000		4,508,000,000		4,645,000,000
Other assets	0		0		0
Fair value assets measured on recurring basis, total	235,501,000,000		235,501,000,000		217,570,000,000
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	0		0		0
Derivative Liabilities, Fair Value, Gross	3,281,000,000		3,281,000,000		2,873,000,000
Long-term debt, portion measured at fair value	2,303,000,000		2,303,000,000		2,213,000,000
Other liabilities	22,000,000		22,000,000		11,000,000
Fair value liabilities measured on recurring basis, total	5,606,000,000		5,606,000,000		5,097,000,000
Recurring Basis | Level 2 | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	3,275,000,000		3,275,000,000		2,888,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	2,277,000,000		2,277,000,000		2,004,000,000
Recurring Basis | Level 2 | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	1,262,000,000		1,262,000,000		1,159,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	960,000,000		960,000,000		858,000,000
Recurring Basis | Level 2 | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	548,000,000		548,000,000		190,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	23,000,000		23,000,000		3,000,000
Recurring Basis | Level 2 | Credit contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	0		0		0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	21,000,000		21,000,000		8,000,000
Recurring Basis | Level 2 | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	0		0		0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	0		0		0
Recurring Basis | Level 2 | U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	4,123,000,000		4,123,000,000		3,207,000,000
Other bond securities	2,177,000,000		2,177,000,000		2,654,000,000
Recurring Basis | Level 2 | Obligations of states, municipalities and political subdivisions
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	13,784,000,000		13,784,000,000		14,001,000,000
Recurring Basis | Level 2 | Non-U.S. governments
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	15,323,000,000		15,323,000,000		14,445,000,000
Other bond securities	56,000,000		56,000,000		45,000,000
Recurring Basis | Level 2 | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	142,739,000,000		142,739,000,000		129,836,000,000
Other bond securities	1,798,000,000		1,798,000,000		1,671,000,000
Recurring Basis | Level 2 | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	19,313,000,000		19,313,000,000		20,178,000,000
Other bond securities	494,000,000		494,000,000		424,000,000
Recurring Basis | Level 2 | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	12,521,000,000		12,521,000,000		11,784,000,000
Other bond securities	330,000,000		330,000,000		311,000,000
Recurring Basis | Level 2 | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	9,565,000,000		9,565,000,000		8,725,000,000
Other bond securities	516,000,000		516,000,000		454,000,000
Recurring Basis | Level 3
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	28,013,000,000		28,013,000,000		27,093,000,000
Other bond securities	5,068,000,000		5,068,000,000		5,845,000,000
Equity securities	35,000,000		35,000,000		27,000,000
Other invested assets	605,000,000		605,000,000		587,000,000
Derivative Assets, Fair Value, Gross	136,000,000		136,000,000		96,000,000
Short-term investments, portion measured at fair value	0		0		0
Separate account assets, at fair value	0		0		0
Other assets	61,000,000		61,000,000		58,000,000
Fair value assets measured on recurring basis, total	33,918,000,000		33,918,000,000		33,706,000,000
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	6,065,000,000		6,065,000,000		4,116,000,000
Derivative Liabilities, Fair Value, Gross	201,000,000		201,000,000		249,000,000
Long-term debt, portion measured at fair value	0		0		0
Other liabilities	0		0		0
Fair value liabilities measured on recurring basis, total	6,266,000,000		6,266,000,000		4,365,000,000
Recurring Basis | Level 3 | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	0		0		0
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	16,000,000		16,000,000		15,000,000
Recurring Basis | Level 3 | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	4,000,000		4,000,000		5,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	0		0		0
Recurring Basis | Level 3 | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	118,000,000		118,000,000		75,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	5,000,000		5,000,000		0
Recurring Basis | Level 3 | Credit contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	1,000,000		1,000,000		1,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	174,000,000		174,000,000		228,000,000
Recurring Basis | Level 3 | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	13,000,000		13,000,000		15,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	6,000,000		6,000,000		6,000,000
Recurring Basis | Level 3 | U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	0		0		0
Other bond securities	0		0		0
Recurring Basis | Level 3 | Obligations of states, municipalities and political subdivisions
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	2,162,000,000		2,162,000,000		2,000,000,000
Recurring Basis | Level 3 | Non-U.S. governments
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	2,000,000		2,000,000		11,000,000
Other bond securities	0		0		0
Recurring Basis | Level 3 | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	1,821,000,000		1,821,000,000		864,000,000
Other bond securities	0		0		0
Recurring Basis | Level 3 | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	13,863,000,000		13,863,000,000		14,199,000,000
Other bond securities	830,000,000		830,000,000		1,290,000,000
Recurring Basis | Level 3 | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	1,103,000,000		1,103,000,000		917,000,000
Other bond securities	88,000,000		88,000,000		77,000,000
Recurring Basis | Level 3 | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	9,062,000,000		9,062,000,000		9,102,000,000
Other bond securities	$ 4,150,000,000		$ 4,150,000,000		$ 4,478,000,000