Commercial Mortgage Loans, Percentage of Investments

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Debt Securities, Available-For-Sale, Unrealized Loss Position, Allowance For Credit Loss, Excluding Accrued Interest

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- Definition

Debt Service Coverage Ratio, Amortization Period

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- Definition

Financing Receivable, Allowance For Credit Loss, Probability of Loss, Default Model, Projected Loss, Using Reasonable And Supportable Forecast Period

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Financing Receivable, Allowance For Credit Loss, Probability of Projected Loss, Default, Projection Model, Using Market Historical Loss, Period

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- Definition

Reinsurance Agreement, Recognized Gains (Losses)

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- Definition

Residential Mortgage Loans, Location Percentage

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- Definition

Percentage of the total residential loan portfolio

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- Definition

Carrying amount of cash and investment securities on deposit with state regulatory authorities in connection with capital requirements.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 825
-Section 50
-Paragraph 1A
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- Definition

Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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- Definition

Amount of the collateral pledged in support of federal home loan bank advances outstanding.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
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- Definition

Amortized cost excluding accrued interest, of financing receivable on nonaccrual status. Excludes net investment in lease.

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-Name Accounting Standards Codification
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- Definition

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
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- 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.

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Investments - Narrative (Details) - USD ($)	3 Months Ended
Investments - Narrative (Details) - USD ($)	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Accrued interest receivable	$ 413,000,000		$ 365,000,000
FHLB collateral pledged	3,830,000,000		3,387,000,000
Fixed maturity securities, available-for-sale securities, allowance for credit losses	20,000,000		39,000,000
Allowance for credit loss for securities in an unrealized loss position	$ 0
DSC ratio, amortization period	25 years
Non-accrual loans	$ 72,000,000		71,000,000
Reinsurance agreement, recognized (losses) gains	$ (22,000,000)	$ 128,000,000
United States
Debt Securities, Available-for-sale [Line Items]
Residential mortgage loans, location percentage	100.00%
Commercial mortgage loans
Debt Securities, Available-for-sale [Line Items]
Commercial mortgage loans, percentage of investments	6.00%
Non-accrual loans	$ 9,000,000		$ 9,000,000
Commercial mortgage loans \| Mortgage loans
Debt Securities, Available-for-sale [Line Items]
Allowance for expected credit loss, probability of loss/default model, projected loss, using reasonable forecast period	2 years
Allowance for credit loss, probability of loss/default, using market historical loss experience, period	3 years
Residential mortgage loans
Debt Securities, Available-for-sale [Line Items]
Residential mortgage loans, percentage of total investments	6.00%		5.00%
Non-accrual loans	$ 63,000,000		$ 62,000,000
Residential mortgage loans \| Mortgage loans
Debt Securities, Available-for-sale [Line Items]
Allowance for expected credit loss, probability of loss/default model, projected loss, using reasonable forecast period	2 years
Allowance for credit loss, probability of loss/default, using market historical loss experience, period	3 years
90 Days or more past due \| Mortgage loans
Debt Securities, Available-for-sale [Line Items]
Loans in process of foreclosure	$ 32,000,000		38,000,000
Fixed maturity securities, available-for-sale
Debt Securities, Available-for-sale [Line Items]
Assets held by insurance regulators	$ 18,876,000,000		$ 17,870,000,000