INSURANCE LIABILITIES AND ANNUITY BENEFITS - Narrative (Details) $ in Millions	3 Months Ended		63 Months Ended
	Mar. 31, 2024 USD ($) loan	Mar. 31, 2023 USD ($)	Mar. 31, 2024 USD ($) loan	Dec. 31, 2023 USD ($)
Disaggregation of Revenue [Line Items]
Insurance revenues	$ 879	$ 791
Net earnings (loss)	$ 1,563	7,478
Percent of portfolio held in office sector	33.30%		33.30%
Gross premium income	$ 207	214
Interest accretion	439	435
Policyholder account balance	1,686	1,921	$ 1,686
Policyholder account balance, surrender, withdrawal and benefit payments	106	120
Policyholder account balance, net additions and interest credited	66	75
Capital contributions to insurance subsidiaries	$ 1,820		$ 15,035
Minimum
Disaggregation of Revenue [Line Items]
Policyholder account balance, crediting rate	3.00%		3.00%	3.00%
Maximum
Disaggregation of Revenue [Line Items]
Policyholder account balance, crediting rate	6.00%		6.00%	6.00%
Long-term care
Disaggregation of Revenue [Line Items]
Gross premium income	$ 123	124
Interest accretion	318	310
Life
Disaggregation of Revenue [Line Items]
Gross premium income	79	84
Structured settlement annuities
Disaggregation of Revenue [Line Items]
Interest accretion	111	115
Run-off insurance operations
Disaggregation of Revenue [Line Items]
Insurance revenues	879	791
Gross profit (loss)	200	70
Net earnings (loss)	158	$ 54
Investment securities	38,304		$ 38,304	$ 37,592
Limited partnerships	3,498		3,498	3,300
Run-off insurance operations | CMBS
Disaggregation of Revenue [Line Items]
Debt securities, net	1,924		1,924	1,947
Debt securities, allowance for credit losses	$ 61		$ 61	$ 48
Number of delinquent loans | loan	4		4
Number of nonaccrual loans | loan	1		1
Weighted average loan to value ratio	70.00%		70.00%
Debt service coverage ratio	1.6		1.6