FAIR VALUE OF ASSETS AND LIABILITIES - PREDECESSOR COMPANY - Fair Value of Financial Instruments (Details) - USD ($) $ in Millions		Dec. 31, 2022	Dec. 31, 2021
ASSETS
Accrued investment income		$ 52	$ 61
Other invested assets - Policy loans	[1]	235	8,108
Receivables from parent and affiliates		40	5
Fair Value
ASSETS
Commercial mortgage and other loans			1,516
Policy loans			12
Short-term investments			81
Cash and cash equivalents			277
Accrued investment income			61
Other invested assets - Policy loans			9
Receivables from parent and affiliates			5
Other invested assets - Policy loans			2,279
Total assets			4,240
LIABILITIES
Repurchase agreements			2,391
Payables to parent and affiliates			36
Other liabilities			105
Separate account liabilities - investment contracts			0
Total liabilities			2,532
Fair Value | Level 1
ASSETS
Commercial mortgage and other loans			0
Policy loans			0
Short-term investments			81
Cash and cash equivalents			277
Accrued investment income		0	0
Other invested assets - Policy loans			0
Receivables from parent and affiliates			0
Other invested assets - Policy loans		0	0
Total assets			358
LIABILITIES
Repurchase agreements		0	0
Payables to parent and affiliates			0
Other liabilities			0
Separate account liabilities - investment contracts			0
Total liabilities			0
Fair Value | Level 2
ASSETS
Commercial mortgage and other loans			0
Policy loans			0
Short-term investments			0
Cash and cash equivalents			0
Accrued investment income		52	61
Other invested assets - Policy loans			0
Receivables from parent and affiliates			5
Other invested assets - Policy loans		0	4
Total assets			70
LIABILITIES
Repurchase agreements		311	0
Payables to parent and affiliates			36
Other liabilities			105
Separate account liabilities - investment contracts			0
Total liabilities			141
Fair Value | Level 3
ASSETS
Commercial mortgage and other loans			1,516
Policy loans			12
Short-term investments			0
Cash and cash equivalents			0
Accrued investment income		0	0
Other invested assets - Policy loans			9
Receivables from parent and affiliates			0
Other invested assets - Policy loans		11	2,275
Total assets			3,812
LIABILITIES
Repurchase agreements		0	2,391
Payables to parent and affiliates			0
Other liabilities			0
Separate account liabilities - investment contracts			0
Total liabilities			2,391
Carrying Amount
ASSETS
Commercial mortgage and other loans			1,504
Policy loans			12
Short-term investments			81
Cash and cash equivalents			277
Accrued investment income		52	61
Other invested assets - Policy loans			8
Receivables from parent and affiliates			5
Other invested assets - Policy loans		11	2,279
Total assets			4,227
LIABILITIES
Repurchase agreements		$ 311	2,381
Payables to parent and affiliates			36
Other liabilities			105
Separate account liabilities - investment contracts			0
Total liabilities			$ 2,522

[1] We have elected the fair value option on these financial statement line items for the Successor Company. See Note 2 for further discussion.