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Commitments and Contingencies - Schedule of Investment Commitments (Details) $ in Millions	Sep. 30, 2025 USD ($)
Commitment to Invest
Other Commitments [Line Items]
Total	$ 4,262
Residential mortgage loans
Other Commitments [Line Items]
Total	365
Limited partnerships | Commitment to Invest
Other Commitments [Line Items]
Total	1,127
Asset-backed lending | Commitment to Invest
Other Commitments [Line Items]
Total	225
Fixed maturity securities, asset-backed securities | Commitment to Invest
Other Commitments [Line Items]
Total	460
Direct Lending | Commitment to Invest
Other Commitments [Line Items]
Total	1,734
Other fixed maturity securities, AFS | Commitment to Invest
Other Commitments [Line Items]
Total	162
Commercial mortgage loans | Commitment to Invest
Other Commitments [Line Items]
Total	79
Other assets | Commitment to Invest
Other Commitments [Line Items]
Total	$ 110

X

- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 235
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477314/942-235-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3

+ Details

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X

- Definition

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+ References

No definition available.

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