FAIR VALUE OF ASSETS AND LIABILITIES - Assets and Liabilities by Hierarchy Level (Details) - USD ($) $ in Millions		Jun. 30, 2022	Dec. 31, 2021
Fixed Maturity Securities
Asset-backed securities		$ 7,665	$ 8,771
Equity securities	[1]	183	322
Short-term investments		43	875
Other invested assets		273	106
Secured receivable	[1]	1,555	0
Other assets		198	954
Separate account assets		25,088	32,267
Liabilities:
Policyholders' account balances		0	11,750
Other liabilities		1,388	1,192
Embedded derivatives in an asset position			62
Embedded derivatives in a liability position			4,122
Fixed maturities, trading		0	27
U.S Treasury securities and obligations of U.S. government authorities and agencies
Fixed Maturity Securities
Asset-backed securities			727
Obligations of U.S. states and their political subdivisions
Fixed Maturity Securities
Asset-backed securities			296
U.S. corporate public securities
Fixed Maturity Securities
Asset-backed securities			2,460
U.S. corporate private securities
Fixed Maturity Securities
Asset-backed securities			1,645
Foreign corporate public securities
Fixed Maturity Securities
Asset-backed securities			795
Foreign corporate private securities
Fixed Maturity Securities
Asset-backed securities			892
Asset-backed securities
Fixed Maturity Securities
Asset-backed securities			1,062
Commercial mortgage-backed securities
Fixed Maturity Securities
Asset-backed securities			706
Residential mortgage-backed securities
Fixed Maturity Securities
Asset-backed securities			74
Recurring
Fixed Maturity Securities
Asset-backed securities		7,665	8,771
Equity securities		183	322
Short-term investments		43	795
Cash and cash equivalents		1,017	1,739
Other invested assets		179	3
Other invested assets, Netting		(1,385)	(1,475)
Secured receivable		1,555
Deposit asset		2,158
Other assets			400
Reinsurance recoverables		378	1,881
Net modified coinsurance receivable		215
Subtotal excluding separate account assets		(13,393)	(13,938)
Separate account assets		25,088	32,267
Total assets		38,481	46,205
Liabilities:
Retained business		11,257
Future policy benefits			4,060
Policyholders' account balances			2,041
Liabilities, Netting		(380)	(1,153)
Payables to parent and affiliates			215
Other liabilities		200	0
Total liabilities		11,457	6,316
Cash collateral		236	321
Fixed maturities, trading			27
Recurring | U.S Treasury securities and obligations of U.S. government authorities and agencies
Fixed Maturity Securities
Asset-backed securities		1,059	727
Recurring | Obligations of U.S. states and their political subdivisions
Fixed Maturity Securities
Asset-backed securities		209	296
Recurring | Foreign government bonds
Fixed Maturity Securities
Asset-backed securities		28	114
Recurring | U.S. corporate public securities
Fixed Maturity Securities
Asset-backed securities		2,804	2,460
Recurring | U.S. corporate private securities
Fixed Maturity Securities
Asset-backed securities		1,375	1,645
Recurring | Foreign corporate public securities
Fixed Maturity Securities
Asset-backed securities		458	795
Recurring | Foreign corporate private securities
Fixed Maturity Securities
Asset-backed securities		723	892
Recurring | Asset-backed securities
Fixed Maturity Securities
Asset-backed securities		760	1,062
Recurring | Commercial mortgage-backed securities
Fixed Maturity Securities
Asset-backed securities		206	706
Recurring | Residential mortgage-backed securities
Fixed Maturity Securities
Asset-backed securities		43	74
Recurring | Level 1
Fixed Maturity Securities
Asset-backed securities		0	0
Equity securities		183	321
Short-term investments		25	519
Cash and cash equivalents		292	372
Other invested assets		36	1
Secured receivable		0
Deposit asset		0
Other assets			0
Reinsurance recoverables		0	0
Net modified coinsurance receivable		0
Subtotal excluding separate account assets		(536)	(1,213)
Separate account assets		0	0
Total assets		536	1,213
Liabilities:
Retained business		0
Future policy benefits			0
Policyholders' account balances			0
Payables to parent and affiliates			0
Other liabilities		0	1
Total liabilities		0	1
Fixed maturities, trading			0
Recurring | Level 1 | U.S Treasury securities and obligations of U.S. government authorities and agencies
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 1 | Obligations of U.S. states and their political subdivisions
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 1 | Foreign government bonds
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 1 | U.S. corporate public securities
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 1 | U.S. corporate private securities
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 1 | Foreign corporate public securities
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 1 | Foreign corporate private securities
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 1 | Asset-backed securities
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 1 | Commercial mortgage-backed securities
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 1 | Residential mortgage-backed securities
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 2
Fixed Maturity Securities
Asset-backed securities		7,326	8,506
Equity securities		0	0
Short-term investments		18	263
Cash and cash equivalents		725	1,359
Other invested assets		1,528	1,477
Secured receivable		0
Deposit asset		0
Net modified coinsurance receivable		0
Subtotal excluding separate account assets		(9,597)	(11,632)
Separate account assets		25,088	32,267
Total assets		34,685	43,899
Liabilities:
Retained business		0
Future policy benefits			0
Policyholders' account balances			0
Payables to parent and affiliates			1,367
Other liabilities		580	0
Total liabilities		580	1,367
Fixed maturities, trading			27
Recurring | Level 2 | U.S Treasury securities and obligations of U.S. government authorities and agencies
Fixed Maturity Securities
Asset-backed securities		1,059	727
Recurring | Level 2 | Obligations of U.S. states and their political subdivisions
Fixed Maturity Securities
Asset-backed securities		209	296
Recurring | Level 2 | Foreign government bonds
Fixed Maturity Securities
Asset-backed securities		28	114
Recurring | Level 2 | U.S. corporate public securities
Fixed Maturity Securities
Asset-backed securities		2,804	2,460
Recurring | Level 2 | U.S. corporate private securities
Fixed Maturity Securities
Asset-backed securities		1,140	1,556
Recurring | Level 2 | Foreign corporate public securities
Fixed Maturity Securities
Asset-backed securities		413	795
Recurring | Level 2 | Foreign corporate private securities
Fixed Maturity Securities
Asset-backed securities		689	791
Recurring | Level 2 | Asset-backed securities
Fixed Maturity Securities
Asset-backed securities		735	1,039
Recurring | Level 2 | Commercial mortgage-backed securities
Fixed Maturity Securities
Asset-backed securities		206	674
Recurring | Level 2 | Residential mortgage-backed securities
Fixed Maturity Securities
Asset-backed securities		43	54
Recurring | Level 3
Fixed Maturity Securities
Asset-backed securities		339	265
Equity securities		0	1
Short-term investments		0	13
Cash and cash equivalents		0	8
Other invested assets		0	0
Secured receivable		1,555
Deposit asset		2,158
Other assets			400
Reinsurance recoverables		378	1,881
Net modified coinsurance receivable		215
Subtotal excluding separate account assets		(4,645)	(2,568)
Separate account assets		0	0
Total assets		4,645	2,568
Liabilities:
Retained business		11,257
Future policy benefits			4,060
Policyholders' account balances			2,041
Payables to parent and affiliates			0
Other liabilities		0	0
Total liabilities		11,257	6,101
Fixed maturities, trading			0
Recurring | Level 3 | U.S Treasury securities and obligations of U.S. government authorities and agencies
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 3 | Obligations of U.S. states and their political subdivisions
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 3 | Foreign government bonds
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 3 | U.S. corporate public securities
Fixed Maturity Securities
Asset-backed securities		0	0
Recurring | Level 3 | U.S. corporate private securities
Fixed Maturity Securities
Asset-backed securities		235	89
Recurring | Level 3 | Foreign corporate public securities
Fixed Maturity Securities
Asset-backed securities		45	0
Recurring | Level 3 | Foreign corporate private securities
Fixed Maturity Securities
Asset-backed securities		34	101
Recurring | Level 3 | Asset-backed securities
Fixed Maturity Securities
Asset-backed securities		25	23
Recurring | Level 3 | Commercial mortgage-backed securities
Fixed Maturity Securities
Asset-backed securities		0	32
Recurring | Level 3 | Residential mortgage-backed securities
Fixed Maturity Securities
Asset-backed securities		0	20
Recurring | Fair Value Measured at Net Asset Value Per Share
Liabilities:
Other invested assets excluded from fair value hierarchy		9	10
Other invested assets | Recurring
Fixed Maturity Securities
Other invested assets, Netting		(1,385)	(1,475)
Subtotal excluding separate account assets		(1,385)
Netting | Recurring
Liabilities:
Liabilities, Netting			(1,152)
Net modified coinsurance payable | Recurring
Liabilities:
Liabilities, Netting		$ (380)	(1)
Future policy benefits
Liabilities:
Net embedded derivative liability position			$ 4,060

[1] As of April 1, 2022 we have elected the fair value option for these financial statement line items. See Note 2 for further discussion.