Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

INVESTMENTS - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
U.S. corporate public securities
Debt Securities, Available-for-Sale [Line Items]
Securities	$ 301	$ 311
U.S. corporate public securities \| Fair Value
Debt Securities, Available-for-Sale [Line Items]
Securities	318	326
Equity securities
Debt Securities, Available-for-Sale [Line Items]
Securities	164	106
Equity securities \| Fair Value
Debt Securities, Available-for-Sale [Line Items]
Securities	$ 162	$ 103
Mortgage and other loans
Debt Securities, Available-for-Sale [Line Items]
Commercial mortgage and other loans, allowance for credit losses			$ 1