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INCOME TAXES - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Valuation allowance movement [Line Items]
Increase in (release of) valuation allowance	$ (21,000,000)
Deferred tax assets for unrealized losses on fixed maturity securities	54,000,000	$ 71,000,000
Unrecognized tax benefits	0	$ 0
Ireland
Valuation allowance movement [Line Items]
Increase in (release of) valuation allowance	(25,000,000)
Ireland | Foreign Tax Credits
Valuation allowance movement [Line Items]
Increase in (release of) valuation allowance	6,000,000
U.S. | Foreign Tax Credits
Valuation allowance movement [Line Items]
Increase in (release of) valuation allowance	(2,000,000)
Other Comprehensive Income | Ireland
Valuation allowance movement [Line Items]
Increase in (release of) valuation allowance	(13,000,000)
Net income (loss) | Ireland
Valuation allowance movement [Line Items]
Increase in (release of) valuation allowance	$ (12,000,000)

X

- Definition

Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-6

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15A
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-15A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 10B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482525/740-10-45-10B

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- Definition

Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-2

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+ References

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