Alternative investments as a percentage of overall invested assets.

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Amortized cost of portfolio rated below investment grade.

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No definition available.

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- Definition

This item represents the change in gross unrealized holding gain or loss on available-for-sale securities that has been included in accumulated other comprehensive income, a separate component of shareholders' equity, during the period.

+ References

No definition available.

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- Definition

Percentage of the fair value of portfolio that was rated investment grade as of balance sheet date.

+ References

No definition available.

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- Definition

This item represents the percentage of the fair value of securities obtained as collateral under reverse repurchase agreements

+ References

No definition available.

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- Definition

Fair value of portfolio rated below investment grade.

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No definition available.

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- Definition

Financing Receivable, Number of Loans In Foreclosure

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No definition available.

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- Definition

Financing receivable, Number of loans past due

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No definition available.

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- Definition

Impaired financing receivable, number of impaired loans

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No definition available.

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- Definition

Impaired Financing Receivable, Related Allowance, Increase (decrease)

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No definition available.

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- Definition

This item represents total investment commitments as of the balance sheet date for fixed maturity available-for-sale securities, limited partnerships, real estate and mortgage loans on real estate.

+ References

No definition available.

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- Definition

This item represents investment commitments as of the balance sheet date for limited partnerships.

+ References

No definition available.

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- Definition

This item represents investment commitments as of the balance sheet date for private placements.

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No definition available.

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- Definition

This item represents investment commitments as of the balance sheet date for mortgage loans.

+ References

No definition available.

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- Definition

Number of partnerships represented in alternative investment portfolio.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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- Definition

Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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- Definition

This item represents disclosure of all significant concentrations of credit risk or market risk arising from the subject financial instrument (as defined), whether from an individual counterparty or groups of counterparties.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Fair value of collateral permitted, by contact or custom, to be sold or re-pledged.

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- Definition

Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses.

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-Publisher FASB
-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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- Definition

Amount after tax of other than temporary impairment (OTTI) loss on investments in available-for-sale and held-to-maturity debt securities, recognized in other comprehensive loss.

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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.

+ References

No definition available.

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Investments (Narrative) (Details)	12 Months Ended
Investments (Narrative) (Details)	Dec. 31, 2021 USD ($) item loan security	Dec. 31, 2020 USD ($) loan item security	Dec. 31, 2019 USD ($)
Schedule of Investments [Line Items]
Decrease in gross AFS securities unrealized gains (losses)	$ (243,000,000)
Unrealized gain (loss), trading securities	$ (48,000,000)	$ 117,000,000	$ 225,000,000
Number of partnerships in alternative investment portfolio \| security	305	270
Alternative investments as a percentage of overall invested assets	2.00%	1.00%
Fair value of collateral received that we are permitted to sell or re-pledge	$ 22,000,000
OTTI in OCI			14,000,000
Investment commitments	3,100,000,000
Investment commitments for limited partnerships	1,500,000,000
Investment commitments for private placements	987,000,000
Investment commitments for mortgage loans on real estate	$ 574,000,000
Impaired financing receivable, change in recorded allowance			$ 0
Minimum [Member]
Schedule of Investments [Line Items]
Percentage of the fair value of securities obtained as collateral under reverse repurchase agreements.	80.00%
Maximum [Member]
Schedule of Investments [Line Items]
Percentage of the fair value of securities obtained as collateral under reverse repurchase agreements.	95.00%
Commercial [Member]
Schedule of Investments [Line Items]
Number of impaired loans \| item	4
Impaired financing receivable, principal balance	$ 1,000,000
Residential [Member]
Schedule of Investments [Line Items]
Number of loans past due \| loan	65	147
Financing Receivable, Number of Loans In Foreclosure \| item	34	75
Number of impaired loans \| loan	50	76
Impaired financing receivable, principal balance	$ 22,000,000	$ 34,000,000
Mortgage Loans in Process of Foreclosure, Amount	$ 15,000,000	$ 27,000,000
Mortgage Loans On Real Estate [Member] \| Geographic Concentration [Member] \| Commercial [Member] \| California [Member]
Schedule of Investments [Line Items]
Concentration risk, percentage	26.00%	24.00%
Mortgage Loans On Real Estate [Member] \| Geographic Concentration [Member] \| Commercial [Member] \| Texas [Member]
Schedule of Investments [Line Items]
Concentration risk, percentage	9.00%	10.00%
Mortgage Loans On Real Estate [Member] \| Geographic Concentration [Member] \| Residential [Member] \| California [Member]
Schedule of Investments [Line Items]
Concentration risk, percentage	22.00%	32.00%
Mortgage Loans On Real Estate [Member] \| Geographic Concentration [Member] \| Residential [Member] \| Florida [Member]
Schedule of Investments [Line Items]
Concentration risk, percentage	14.00%	18.00%
Corporate Bonds [Member]
Schedule of Investments [Line Items]
Percentage of fair value rated as investment grade	96.00%	96.00%
Amortized cost of portfolio rated below investment grade	$ 3,500,000,000	$ 3,800,000,000
Fair value of portfolio rated below investment grade	3,700,000,000	4,000,000,000.0
Securities [Member] \| Federal Home Loan Mortgage Corporation [Member] \| Investments [Member]
Schedule of Investments [Line Items]
Fair value	$ 910,000,000	$ 1,200,000,000
Concentration risk, percentage	1.00%	1.00%
Securities [Member] \| White Chapel LLC [Member] \| Investments [Member]
Schedule of Investments [Line Items]
Fair value	$ 995,000,000	$ 1,000,000,000.0
Concentration risk, percentage	1.00%	1.00%
Securities [Member] \| Financial Service [Member] \| Investments [Member]
Schedule of Investments [Line Items]
Fair value	$ 21,700,000,000
Concentration risk, percentage	14.00%	14.00%
Securities [Member] \| Consumer Non-Cyclical Industry [Member] \| Investments [Member]
Schedule of Investments [Line Items]
Fair value	$ 18,600,000,000	$ 19,200,000,000
Concentration risk, percentage	12.00%	13.00%