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LONG-TERM SUBORDINATED NOTES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Feb. 14, 2024
Subordinated Debt
Debt Instrument [Line Items]
Outstanding debt reduction		$ 6
Subordinated Debt | 6.6 % Long Term Subordinated Notes
Debt Instrument [Line Items]
Debt instrument, stated interest rate	6.60%
Basis spread on variable rate	2.385%
Right to defer interest on one or more occasions for up to number of consecutive years	10 years
Percentage of principal amount required for redemption	100.00%
Gain on repurchase and retirement of debt		$ 1
Subordinated Debt | 6.6 % Long Term Subordinated Notes | Subsequent Event
Debt Instrument [Line Items]
Reset quarterly interest rate			8.03%
Senior Notes | 4.868% Senior notes
Debt Instrument [Line Items]
Debt instrument, stated interest rate	4.868%
Senior Notes | 3.5% Senior notes
Debt Instrument [Line Items]
Debt instrument, stated interest rate	3.50%
Senior Notes | 3.125% Senior notes
Debt Instrument [Line Items]
Debt instrument, stated interest rate	3.125%

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