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Net Investment Income And Investment Related Gains (Losses) (Tables)

12 Months Ended

Dec. 31, 2024

Investments, Debt and Equity Securities [Abstract]

Schedule of Net Investment Income

Net investment income is shown below:

			Successor																					Predecessor
			Year Ended December 31,												Period From May 25 to December 31,									Period From January 1 to May 24,
			2024						2023						2022									2022
			(Dollars in millions)
Available-for-sale fixed maturity securities			$	1,913					$	702					$	336								$	223
Equity securities			31						8						2									1
Mortgage loans			623						300						181									123
Private loans			216						16						—									—
Real estate			50						13						5									6
Real estate partnerships			23						29						55									105
Investment funds			307						81						34									35
Policy loans			18						—						—									—
Short-term investments			204						187						58									4
Other			243						52						29									16
Total net investment income			$	3,628					$	1,388					$	700								$	513

Schedule of Net Unrealized and Realized Investment Gains (Losses)

Net unrealized and realized investment gains (losses) are shown below:

			Successor																					Predecessor
			Year Ended December 31,												Period From May 25 to December 31,									Period From January 1 to May 24,
			2024						2023						2022									2022
			(Dollars in millions)
Available-for-sale fixed maturity securities			$	(185)					$	(70)					$	(59)								$	(13)
Equity securities			(48)						97						49									(13)
Mortgage loans			(83)						(26)						(35)									4
Private loans			(28)						(9)						—									—
Investment real estate			(11)						(4)						7									11
Real estate partnerships			(1)						—						—									—
Investments funds			(21)						—						—									—
Short-term investments and other invested assets			31						11						(1)									4
Total investment related gains (losses), net			$	(346)					$	(1)					$	(39)								$	(7)

X

- Definition

Tabular disclosure of realized and unrealized gain (loss) on investment in security.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(9)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

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- Definition

Tabular disclosure of investment income, including, but not limited to, interest and dividend income and amortization of discount (premium) derived from debt and equity securities. Excludes realized and unrealized gain (loss) on investments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(8))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(9))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1

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