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Schedule I — Summary of Investments Other than Investments in Related Parties (Details) $ in Millions	Dec. 31, 2025 USD ($)
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	$ 82,481
Amount shown in the Balance Sheet	83,237
Total fixed maturities
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	58,730
Fair value (if applicable)	59,115
Amount shown in the Balance Sheet	59,115
United States government, government agencies and authorities
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	18,165
Fair value (if applicable)	18,133
Amount shown in the Balance Sheet	18,133
States, municipalities and political subdivisions
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	5,617
Fair value (if applicable)	5,643
Amount shown in the Balance Sheet	5,643
Foreign governments
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	1,464
Fair value (if applicable)	1,460
Amount shown in the Balance Sheet	1,460
Public utilities
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	4,465
Fair value (if applicable)	4,542
Amount shown in the Balance Sheet	4,542
All other corporate bonds
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	25,585
Fair value (if applicable)	25,859
Amount shown in the Balance Sheet	25,859
Asset-backed securities
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	1,348
Fair value (if applicable)	1,352
Amount shown in the Balance Sheet	1,352
Total equity securities
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	8,026
Fair value (if applicable)	8,398
Amount shown in the Balance Sheet	8,398
Public utilities
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	150
Fair value (if applicable)	143
Amount shown in the Balance Sheet	143
Banks, trusts and insurance companies
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	587
Fair value (if applicable)	622
Amount shown in the Balance Sheet	622
Industrial, miscellaneous and all other
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	7,114
Fair value (if applicable)	7,409
Amount shown in the Balance Sheet	7,409
Nonredeemable preferred stocks
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	175
Fair value (if applicable)	224
Amount shown in the Balance Sheet	224
Mortgage loans on real estate
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	879
Fair value (if applicable)	868
Amount shown in the Balance Sheet	879
Real estate
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	630
Amount shown in the Balance Sheet	630
Derivative instruments
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	10
Fair value (if applicable)	10
Amount shown in the Balance Sheet	10
Limited partnership interests
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	8,844
Amount shown in the Balance Sheet	8,844
Bank loans and other investments
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	474
Fair value (if applicable)	488
Amount shown in the Balance Sheet	474
Short-term investments
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	4,888
Fair value (if applicable)	4,887
Amount shown in the Balance Sheet	4,887
Mortgage-backed securities
Summary of Investments Other Than Investments in Related Parties
Cost/amortized cost, net	2,086
Fair value (if applicable)	2,126
Amount shown in the Balance Sheet	$ 2,126

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Subsection 15
-Publisher SEC

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 7
-Subparagraph (SX 210.12-15)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-7

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Amount of investment held by insurance company, excluding investment in related party.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 7
-Subparagraph (SX 210.12-15(Column D))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-7

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 7
-Subparagraph (SX 210.12-15(Column B))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-7

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 7
-Subparagraph (SX 210.12-15(Column C))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-7

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