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Reinsurance - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2025	Jan. 02, 2025	Dec. 31, 2024
Effects of Reinsurance [Line Items]
Deposit assets	$ 900		$ 1,100
Future policy benefits and contract owner account balances, assumed	4,054		896
Contract Owner account balance uncer coinsurance		$ 3,800
Separate accounts liability under coinsurance		$ 20,600
Funds Withheld, Funds Held under Reinsurance Agreements, Liability, Direct	108		103
Funds Held under Reinsurance Agreements, Liability, Assumed	900
OneAmerica
Effects of Reinsurance [Line Items]
Future policy benefits and contract owner account balances, assumed	3,100
Security Life of Denver Insurance Company (CO)
Effects of Reinsurance [Line Items]
Reinsurance Recoverable, Net	8,100		8,600
Lincoln National Corporation
Effects of Reinsurance [Line Items]
Reinsurance Recoverable, Net	$ 800		$ 900

X

- Definition

Carrying amount of assets as of the balance sheet date pertaining to amounts paid by the insured (including a ceding company) under insurance or reinsurance contracts for which insurance risk is not transferred.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 340
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483081/340-30-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 340
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483054/340-30-50-1

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Closed Block Liabilities, Future Policy Benefits and Policyholder Account Balances, Assumed

+ References

No definition available.

+ Details

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- Definition

Contract Owner account balance uncer coinsurance

+ References

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X

- Definition

Funds Held under Reinsurance Agreements, Liability, Assumed

+ References

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- Definition

Funds Withheld, Funds Held under Reinsurance Agreements, Liability, Direct

+ References

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- Definition

Reinsurance Recoverable, Net

+ References

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- Definition

Separate accounts liability under coinsurance

+ References

No definition available.

+ Details

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- Details

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- Details

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