Alternative investments as a percentage of overall invested assets.

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- Definition

Amortized cost of portfolio rated below investment grade.

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No definition available.

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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.

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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

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No definition available.

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Fair value of portfolio rated below investment grade.

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Financing receivable, Number of loans past due

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Impaired financing receivable, number of impaired loans

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No definition available.

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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.

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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.

+ Details

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

+ References

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

Investments [Line Items]

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No definition available.

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- Definition

Number Of Loans In Foreclosure

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No definition available.

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- Definition

Number of partnerships represented in alternative investment portfolio.

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No definition available.

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- Definition

Amortized cost of 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/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
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-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479130/326-30-45-1

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- Definition

Amount of 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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aa)
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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
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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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- Definition

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amortized cost of financing receivable modified during period for debtor experiencing financial difficulty.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
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-Name Accounting Standards Codification
-Section 50
-Paragraph 33
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-33

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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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- 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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Investments (Narrative) (Details) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
Investments (Narrative) (Details) $ in Millions	Jun. 30, 2023 USD ($) loan item	Jun. 30, 2023 USD ($) loan item	Dec. 31, 2022 USD ($) loan security item	Dec. 31, 2021
Investments [Line Items]
Increase (decrease) in gross AFS securities unrealized losses		$ 1,400
Number of partnerships in alternative investment portfolio \| item	338	338	337
Alternative investments as a percentage of overall invested assets		2.00%	2.00%
Amortized cost	$ 111,354	$ 111,354	$ 111,707
Fair Value	100,890	100,890	99,736
Fair value of collateral received that we are permitted to sell or re-pledge	25	25
Investment commitments	2,600	2,600
Investment commitments for limited partnerships	1,900	1,900
Investment commitments for mortgage loans on real estate	226	226
Investment commitments for private placements	$ 418	$ 418
Minimum [Member]
Investments [Line Items]
Percentage of the fair value of securities obtained as collateral under reverse repurchase agreements	80.00%	80.00%
Maximum [Member]
Investments [Line Items]
Losses from loan modifications	$ 1	$ 1
Percentage of the fair value of securities obtained as collateral under reverse repurchase agreements	95.00%	95.00%
Federal Home Loan Mortgage Corporation [Member] \| Investments [Member]
Investments [Line Items]
Fair value	$ 683	$ 683	720
Federal National Mortgage Association [Member] \| Investments [Member]
Investments [Line Items]
Fair value	768	768	745
Consumer Non-Cyclical Industry [Member] \| Investments [Member]
Investments [Line Items]
Fair value	15,500	15,500	15,100
Financial Service [Member] \| Investments [Member]
Investments [Line Items]
Fair value	$ 16,200	$ 16,200	$ 16,600
Corporate Bonds [Member]
Investments [Line Items]
Percentage of fair value rated as investment grade	96.00%	96.00%	96.00%
Amortized cost of portfolio rated below investment grade	$ 3,300	$ 3,300	$ 3,700
Fair value of portfolio rated below investment grade	3,100	$ 3,100	$ 3,500
Securities Investment [Member] \| Federal Home Loan Mortgage Corporation [Member] \| Investments [Member]
Investments [Line Items]
Concentration risk, percentage		1.00%	1.00%
Securities Investment [Member] \| Federal National Mortgage Association [Member] \| Investments [Member]
Investments [Line Items]
Concentration risk, percentage		1.00%	1.00%
Securities Investment [Member] \| Consumer Non-Cyclical Industry [Member] \| Investments [Member]
Investments [Line Items]
Concentration risk, percentage		12.00%	11.00%
Securities Investment [Member] \| Financial Service [Member] \| Investments [Member]
Investments [Line Items]
Concentration risk, percentage		12.00%		13.00%
Commercial [Member]
Investments [Line Items]
Number of impaired loans \| security			2
Commercial [Member] \| Maximum [Member]
Investments [Line Items]
Impaired financing receivable, principal balance	$ 1	$ 1	$ 1
Commercial [Member] \| Geographic Concentration Risk [Member] \| Mortgage Loans On Real Estate [Member] \| California [Member]
Investments [Line Items]
Concentration risk, percentage		28.00%	27.00%
Commercial [Member] \| Geographic Concentration Risk [Member] \| Mortgage Loans On Real Estate [Member] \| Texas [Member]
Investments [Line Items]
Concentration risk, percentage		9.00%	9.00%
Residential [Member]
Investments [Line Items]
Number of loans past due \| loan	90	90	73
Number of impaired loans \| loan		64	37
Impaired financing receivable, principal balance	$ 29	$ 29	$ 16
Number Of Loans In Foreclosure \| loan	67	67	49
Mortgage Loans in Process of Foreclosure, Amount	$ 28	$ 28	$ 21
Residential [Member] \| Geographic Concentration Risk [Member] \| Mortgage Loans On Real Estate [Member] \| California [Member]
Investments [Line Items]
Concentration risk, percentage		15.00%	17.00%
Residential [Member] \| Geographic Concentration Risk [Member] \| Mortgage Loans On Real Estate [Member] \| New Jersey [Member]
Investments [Line Items]
Concentration risk, percentage			12.00%
Residential [Member] \| Geographic Concentration Risk [Member] \| Mortgage Loans On Real Estate [Member] \| New York [Member]
Investments [Line Items]
Concentration risk, percentage		13.00%