INVESTMENTS - Schedule of Proceeds and Split Between Gross Gains and Losses, from Sales of Fixed Maturity Securities (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales of fixed maturity securities - available for sale	$ 1,571	$ 6,257	$ 3,849
Gross gains from sales	48	166	35
Gross losses from sales	(159)	(160)	(327)
Proceeds from sales of fixed maturity securities - held to maturity	10	0	0
Gross gains from sales	0	0	0
Gross losses from sales	(1)	0	0
Proceeds from sales of equity securities	56	37	126
Gross gains from sales	0	2	8
Gross losses from sales	$ (1)	$ (1)	$ 0

Debt Security, Held-To-Maturity, Sold, Realized Gain

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Debt Security, Held-To-Maturity, Sold, Realized Loss

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
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Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized gain from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of realized loss from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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-Topic 320
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Amount of cash inflow from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as investing activity.

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The cash inflow associated with the sale of securities that had been designated as held-to-maturity. Excludes proceeds from maturities, prepayments and calls by the issuer.

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