FAIR VALUE MEASUREMENTS (Details - Assets and Liabilities Measured at Fair Value on a Recurring Basis) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	$ 253,221,000,000		$ 253,221,000,000		$ 229,391,000,000
Other bond securities	8,327,000,000		8,327,000,000		11,415,000,000
Equity securities	771,000,000		771,000,000		1,253,000,000
Other invested assets	6,060,000,000		6,060,000,000		5,894,000,000
Derivative Assets, Fair Value, Gross	6,857,000,000		6,857,000,000		4,468,000,000
Derivative assets, Counterparty netting	(2,795,000,000)		(2,795,000,000)		(1,713,000,000)
Derivative assets, Cash collateral	(2,937,000,000)		(2,937,000,000)		(1,840,000,000)
Derivative assets	1,125,000,000		1,125,000,000		915,000,000
Short-term investments, portion measured at fair value	5,577,000,000		5,577,000,000		3,015,000,000
Other assets	1,185,000,000		1,185,000,000		973,000,000
Separate account assets, at fair value	89,125,000,000		89,125,000,000		81,847,000,000
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	7,166,000,000		7,166,000,000		4,116,000,000
Other policyholder funds	3,440,000,000		3,440,000,000		3,568,000,000
Derivative Liabilities, Fair Value, Gross	4,013,000,000		4,013,000,000		3,138,000,000
Derivative liabilities, Counterparty netting	(2,795,000,000)		(2,795,000,000)		(1,713,000,000)
Derivative liabilities, Cash collateral	(133,000,000)		(133,000,000)		(187,000,000)
Derivative liabilities	1,085,000,000		1,085,000,000		1,238,000,000
Other liabilities	1,140,000,000		1,140,000,000		1,265,000,000
Long-term debt, portion measured at fair value	2,287,000,000		2,287,000,000		2,213,000,000
Fair Value Using Net Asset Value Per Share or its equivalent	5,398,000,000		5,398,000,000		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	111,000,000	$ 52,000,000	162,000,000	$ 733,000,000
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	253,221,000,000		253,221,000,000		229,391,000,000
Other bond securities	8,327,000,000		8,327,000,000		11,415,000,000
Equity securities	771,000,000		771,000,000		1,253,000,000
Other invested assets	662,000,000		662,000,000		928,000,000
Derivative assets, Counterparty netting	(2,795,000,000)		(2,795,000,000)		(1,713,000,000)
Derivative assets, Cash collateral	(2,937,000,000)		(2,937,000,000)		(1,840,000,000)
Derivative assets, Counterparty netting and cash collateral	(5,732,000,000)		(5,732,000,000)		(3,553,000,000)
Derivative assets	1,125,000,000		1,125,000,000		915,000,000
Short-term investments, portion measured at fair value	5,577,000,000		5,577,000,000		3,015,000,000
Other assets	60,000,000		60,000,000		58,000,000
Separate account assets, at fair value	89,125,000,000		89,125,000,000		81,847,000,000
Fair value assets measured on recurring basis, total	358,868,000,000		358,868,000,000		328,822,000,000
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	7,166,000,000		7,166,000,000		4,116,000,000
Derivative liabilities, Counterparty netting	(2,795,000,000)		(2,795,000,000)		(1,713,000,000)
Derivative liabilities, Cash collateral	(133,000,000)		(133,000,000)		(187,000,000)
Derivative liabilities, Counterparty netting and cash collateral	(2,928,000,000)		(2,928,000,000)		(1,900,000,000)
Derivative liabilities	1,085,000,000		1,085,000,000		1,238,000,000
Other liabilities	55,000,000		55,000,000		27,000,000
Long-term debt, portion measured at fair value	2,287,000,000		2,287,000,000		2,213,000,000
Fair value liabilities measured on recurring basis, total	10,593,000,000		10,593,000,000		7,594,000,000
Recurring Basis | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	4,382,000,000		4,382,000,000		2,890,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	2,856,000,000		2,856,000,000		2,023,000,000
Recurring Basis | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	1,662,000,000		1,662,000,000		1,164,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	940,000,000		940,000,000		858,000,000
Recurring Basis | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	797,000,000		797,000,000		398,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	88,000,000		88,000,000		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	121,000,000		121,000,000		236,000,000
Recurring Basis | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	15,000,000		15,000,000		15,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	8,000,000		8,000,000		6,000,000
Recurring Basis | U.S. government and government sponsored entities
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	5,227,000,000		5,227,000,000		3,260,000,000
Other bond securities	2,296,000,000		2,296,000,000		2,665,000,000
Recurring Basis | Obligations of states, municipalities and political subdivisions
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	15,745,000,000		15,745,000,000		16,001,000,000
Recurring Basis | Non-U.S. governments
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	15,376,000,000		15,376,000,000		14,525,000,000
Other bond securities	0		0		45,000,000
Recurring Basis | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	151,372,000,000		151,372,000,000		130,700,000,000
Other bond securities	18,000,000		18,000,000		1,671,000,000
Recurring Basis | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	32,795,000,000		32,795,000,000		34,377,000,000
Other bond securities	1,297,000,000		1,297,000,000		1,714,000,000
Recurring Basis | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	14,336,000,000		14,336,000,000		12,701,000,000
Other bond securities	403,000,000		403,000,000		388,000,000
Recurring Basis | Collateralized Debt Obligations/Asset Backed Securities (CDO/ABS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	18,370,000,000		18,370,000,000		17,827,000,000
Other bond securities	4,313,000,000		4,313,000,000		4,932,000,000
Recurring Basis | Level 1
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	778,000,000		778,000,000		122,000,000
Other bond securities	10,000,000		10,000,000		11,000,000
Equity securities	751,000,000		751,000,000		1,213,000,000
Other invested assets	0		0		0
Derivative Assets, Fair Value, Gross	19,000,000		19,000,000		135,000,000
Short-term investments, portion measured at fair value	2,988,000,000		2,988,000,000		2,416,000,000
Other assets	0		0		0
Separate account assets, at fair value	84,707,000,000		84,707,000,000		77,202,000,000
Fair value assets measured on recurring basis, total	89,253,000,000		89,253,000,000		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	15,000,000		15,000,000		16,000,000
Other liabilities	0		0		16,000,000
Long-term debt, portion measured at fair value	0		0		0
Fair value liabilities measured on recurring basis, total	15,000,000		15,000,000		32,000,000
Recurring Basis | Level 1 | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	1,000,000		1,000,000		2,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	3,000,000		3,000,000		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	18,000,000		18,000,000		133,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	12,000,000		12,000,000		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	684,000,000		684,000,000		53,000,000
Other bond securities	10,000,000		10,000,000		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	94,000,000		94,000,000		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	225,499,000,000		225,499,000,000		202,176,000,000
Other bond securities	3,503,000,000		3,503,000,000		5,559,000,000
Equity securities	12,000,000		12,000,000		13,000,000
Other invested assets	73,000,000		73,000,000		341,000,000
Derivative Assets, Fair Value, Gross	6,718,000,000		6,718,000,000		4,237,000,000
Short-term investments, portion measured at fair value	2,589,000,000		2,589,000,000		599,000,000
Other assets	0		0		0
Separate account assets, at fair value	4,418,000,000		4,418,000,000		4,645,000,000
Fair value assets measured on recurring basis, total	242,812,000,000		242,812,000,000		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	3,885,000,000		3,885,000,000		2,873,000,000
Other liabilities	55,000,000		55,000,000		11,000,000
Long-term debt, portion measured at fair value	2,287,000,000		2,287,000,000		2,213,000,000
Fair value liabilities measured on recurring basis, total	6,227,000,000		6,227,000,000		5,097,000,000
Recurring Basis | Level 2 | Interest rate contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	4,381,000,000		4,381,000,000		2,888,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	2,853,000,000		2,853,000,000		2,004,000,000
Recurring Basis | Level 2 | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	1,661,000,000		1,661,000,000		1,159,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	940,000,000		940,000,000		858,000,000
Recurring Basis | Level 2 | Equity contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	676,000,000		676,000,000		190,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	74,000,000		74,000,000		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	18,000,000		18,000,000		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	4,543,000,000		4,543,000,000		3,207,000,000
Other bond securities	2,286,000,000		2,286,000,000		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	13,638,000,000		13,638,000,000		14,001,000,000
Recurring Basis | Level 2 | Non-U.S. governments
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	15,269,000,000		15,269,000,000		14,445,000,000
Other bond securities	0		0		45,000,000
Recurring Basis | Level 2 | Corporate debt
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	150,097,000,000		150,097,000,000		129,836,000,000
Other bond securities	18,000,000		18,000,000		1,671,000,000
Recurring Basis | Level 2 | Residential mortgage-backed securities (RMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	19,235,000,000		19,235,000,000		20,178,000,000
Other bond securities	482,000,000		482,000,000		424,000,000
Recurring Basis | Level 2 | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	13,286,000,000		13,286,000,000		11,784,000,000
Other bond securities	335,000,000		335,000,000		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	9,431,000,000		9,431,000,000		8,725,000,000
Other bond securities	382,000,000		382,000,000		454,000,000
Recurring Basis | Level 3
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	26,944,000,000		26,944,000,000		27,093,000,000
Other bond securities	4,814,000,000		4,814,000,000		5,845,000,000
Equity securities	8,000,000		8,000,000		27,000,000
Other invested assets	589,000,000		589,000,000		587,000,000
Derivative Assets, Fair Value, Gross	120,000,000		120,000,000		96,000,000
Short-term investments, portion measured at fair value	0		0		0
Other assets	60,000,000		60,000,000		58,000,000
Separate account assets, at fair value	0		0		0
Fair value assets measured on recurring basis, total	32,535,000,000		32,535,000,000		33,706,000,000
Fair Value, Liabilities Measured on Recurring Basis
Policyholder contract deposits, portion measured at fair value	7,166,000,000		7,166,000,000		4,116,000,000
Derivative Liabilities, Fair Value, Gross	113,000,000		113,000,000		249,000,000
Other liabilities	0		0		0
Long-term debt, portion measured at fair value	0		0		0
Fair value liabilities measured on recurring basis, total	7,279,000,000		7,279,000,000		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	0		0		15,000,000
Recurring Basis | Level 3 | Foreign exchange contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	1,000,000		1,000,000		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	103,000,000		103,000,000		75,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	2,000,000		2,000,000		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	103,000,000		103,000,000		228,000,000
Recurring Basis | Level 3 | Other contracts
Fair Value, Assets Measured on Recurring Basis
Derivative Assets, Fair Value, Gross	15,000,000		15,000,000		15,000,000
Fair Value, Liabilities Measured on Recurring Basis
Derivative Liabilities, Fair Value, Gross	8,000,000		8,000,000		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	2,107,000,000		2,107,000,000		2,000,000,000
Recurring Basis | Level 3 | Non-U.S. governments
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	13,000,000		13,000,000		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	1,275,000,000		1,275,000,000		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	13,560,000,000		13,560,000,000		14,199,000,000
Other bond securities	815,000,000		815,000,000		1,290,000,000
Recurring Basis | Level 3 | Commercial mortgage-backed securities (CMBS)
Fair Value, Assets Measured on Recurring Basis
Bonds available for sale	1,050,000,000		1,050,000,000		917,000,000
Other bond securities	68,000,000		68,000,000		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	8,939,000,000		8,939,000,000		9,102,000,000
Other bond securities	$ 3,931,000,000		$ 3,931,000,000		$ 4,478,000,000