REINSURANCE (Details - Rollforward of the reinsurance recoverable allowance for credit losses) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Effects of Reinsurance [Line Items]
Reinsurance recoverables, balance, beginning of period	$ 378	$ 362	$ 375	$ 151
Initial allowance upon CECL adoption			0	224
Current period provision for expected credit losses and disputes	(1)	7	4	5
Write-offs charged against the allowance for credit losses and disputes	(3)	(3)	(7)	(10)
Other changes	0	(2)	2	(6)
Reinsurance recoverables, balance, end of period	374	364	374	364
General Insurance
Effects of Reinsurance [Line Items]
Reinsurance recoverables, balance, beginning of period	291	302	292	111
Initial allowance upon CECL adoption			0	202
Current period provision for expected credit losses and disputes	(1)	6	0	2
Write-offs charged against the allowance for credit losses and disputes	(3)	(2)	(7)	(5)
Other changes	0	(1)	2	(5)
Reinsurance recoverables, balance, end of period	287	305	287	305
Life and Retirement
Effects of Reinsurance [Line Items]
Reinsurance recoverables, balance, beginning of period	87	60	83	40
Initial allowance upon CECL adoption			0	22
Current period provision for expected credit losses and disputes	0	1	4	3
Write-offs charged against the allowance for credit losses and disputes	0	(1)	0	(5)
Other changes	0	(1)	0	(1)
Reinsurance recoverables, balance, end of period	$ 87	$ 59	$ 87	$ 59