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Commitments, Contingencies and Guarantees Commitments, Contingencies and Guarantees (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances	$ 1,300
Other Notes Payable	$ 3,800
Life Insurance Assumed Ratio	75.00%
Coinsurance Agreement Ceded Amount Of Counterpartys Inforce Individual Life Insurance Liability	$ 32,000

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Coinsurance Agreement Ceded Amount Of Counterpartys Inforce Individual Life Insurance Liability

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Amount of advance from Federal Home Loan Bank (FHLBank).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 470
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478878/942-470-45-1

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Ratio of life insurance assumed from another insurer to gross life insurance in force.

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Amount of long-term notes payable classified as other.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
-Topic 210
-Publisher FASB
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-SubTopic 210
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-Section S99
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-Publisher FASB
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-SubTopic 210
-Name Accounting Standards Codification
-Section S99
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

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