FAIR VALUE MEASUREMENTS (Details - Net realized and unrealized gains and losses included in income related to Level 3 assets and liabilities) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	$ 335	$ 449	$ 673	$ 344
Policyholder contract deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains (losses) included in income, liabilities	1,363	1,060	(897)	2,231
Policyholder contract deposits | Net investment income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains (losses) included in income, liabilities	0	0	0	0
Policyholder contract deposits | Net realized gains (losses)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains (losses) included in income, liabilities	1,363	1,060	(897)	2,231
Policyholder contract deposits | Other Income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains (losses) included in income, liabilities	0	0	0	0
Derivative liabilities, net
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains (losses) included in income, liabilities	(87)	83	(124)	(74)
Derivative liabilities, net | Net investment income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains (losses) included in income, liabilities	0	0	0	0
Derivative liabilities, net | Net realized gains (losses)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains (losses) included in income, liabilities	(72)	97	(95)	(46)
Derivative liabilities, net | Other Income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains (losses) included in income, liabilities	(15)	(14)	(29)	(28)
Fortitude Re funds withheld payable
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains (losses) included in income, liabilities	2,056	837	(326)	837
Fortitude Re funds withheld payable | Net investment income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains (losses) included in income, liabilities	0	0	0	0
Fortitude Re funds withheld payable | Net realized gains (losses)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains (losses) included in income, liabilities	2,056	837	(326)	837
Fortitude Re funds withheld payable | Other Income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains (losses) included in income, liabilities	0	0	0	0
Bonds available for sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	175	214	369	308
Bonds available for sale | Net investment income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	163	182	348	380
Bonds available for sale | Net realized gains (losses)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	12	32	21	(72)
Bonds available for sale | Other Income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	0	0	0	0
Other bond securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	46	294	37	100
Other bond securities | Net investment income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	47	294	16	(168)
Other bond securities | Net realized gains (losses)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	(1)	0	21	268
Other bond securities | Other Income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	0	0	0	0
Equity securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	0	0	11	(1)
Equity securities | Net investment income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	0	0	11	0
Equity securities | Net realized gains (losses)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	0	0	0	(1)
Equity securities | Other Income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	0	0	0	0
Other invested assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	114	(59)	256	(63)
Other invested assets | Net investment income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	99	(59)	241	(63)
Other invested assets | Net realized gains (losses)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	15	0	15	0
Other invested assets | Other Income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net realized and unrealized gains and losses related to Level 3 items, assets	$ 0	$ 0	$ 0	$ 0