FAIR VALUE - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Fair Value, Recurring - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023
Other Derivative Liabilities — Non-Qualifying
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 1	$ 0
Purchases	0	0
Changes in fair value included in earnings	0	0
Changes in fair value included in comprehensive income	0	0
Transfers in	0	1
Transfers out	0	0
Maturity and settlements	0	0
Ending balance	1	1
Corporate Bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	157	174
Purchases	0	0
Changes in fair value included in earnings	(1)	0
Changes in fair value included in comprehensive income	8	(13)
Transfers in	0	0
Transfers out	0	0
Maturity and settlements	0	(9)
Ending balance	164	152
Other Derivative Assets — Non-Qualifying
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	7	0
Purchases	7	0
Changes in fair value included in earnings	1	5
Changes in fair value included in comprehensive income	0	0
Transfers in	0	0
Transfers out	0	0
Maturity and settlements	0	0
Ending balance	$ 15	$ 5

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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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 into 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 transfer of financial instrument classified as an asset into level 3 of the fair value hierarchy.

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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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Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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