FAIR VALUE - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Fair Value, Recurring - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Other Derivative Liabilities — Non-Qualifying
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 0	$ 1
Purchases	0	0
Changes in fair value included in earnings	0	0
Changes in fair value included in comprehensive income	0	0
Transfers out	0	0
Maturity and settlements	0	0
Ending balance	0	1
Corporate Bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	23	168
Purchases	0	0
Changes in fair value included in earnings	0	0
Changes in fair value included in comprehensive income	0	0
Transfers out	0	0
Maturity and settlements	(3)	0
Ending balance	20	168
Other Derivative Assets — Non-Qualifying
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	29	17
Purchases	1	2
Changes in fair value included in earnings	3	1
Changes in fair value included in comprehensive income	0	0
Transfers out	0	0
Maturity and settlements	(2)	(1)
Ending balance	$ 31	$ 19

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of transfers of financial instrument classified as a liability out of level 3 of the fair value hierarchy.

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Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

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Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3).

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Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy.

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Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

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Amount of gain (loss) recognized in other comprehensive income (OCI) from liability measured at fair value on recurring basis using unobservable input (level 3).

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