Debt Instrument, Extension Term

No definition available.

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- Definition

Debt Instrument, Redemption, Optional Redemption, Period From Issuance

+ References

No definition available.

+ Details

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- Definition

Federal Home Loan Bank, Activity-Based Common Stock Ownership Percentage

+ References

No definition available.

+ Details

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- Definition

Line Of Credit Facility, Accordion Feature, Increase Limit

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Line Of Credit Facility, Number Of Extension Options

+ References

No definition available.

+ Details

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- Definition

Short-term debt, face amount

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Net increase or decrease in the carrying amount of the debt instrument for the period.

+ References

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Balance Type:	credit
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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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.

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+ Details

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- Definition

Amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock.

+ References

No definition available.

+ Details

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details

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- Details

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- Details

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- Details

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Debt - Additional Information (Details)				9 Months Ended
Debt - Additional Information (Details)	Aug. 23, 2024 USD ($)	Aug. 15, 2024 USD ($)	Mar. 29, 2024 USD ($) extension_option	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Aug. 14, 2024 USD ($)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Proceeds from issuance of debt				$ 530,000,000	$ 170,000,000
Activity-based common stock ownership percentage				0.041
FHLB stock				$ 32,400,000			$ 22,300,000
Short-term debt, face amount				443,908,000
Estimate of Fair Value Measurement \| Asset Pledged as Collateral
Debt Instrument [Line Items]
Fair value of pledged assets				1,400,000,000
Federal Home Loan Bank Borrowings
Debt Instrument [Line Items]
Short-term debt, face amount				$ 17,000,000			0
Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 1,000,000,000
Potential maximum borrowing capacity			$ 1,250,000,000
Number of extension options \| extension_option			2
Extension term			1 year
Junior Subordinated Debentures Due 2056
Debt Instrument [Line Items]
Interest rate				4.25%
Senior Notes
Debt Instrument [Line Items]
Optional redemption, period from issuance date				5 years
Senior Notes \| 5.85% Senior notes due September 15, 2034
Debt Instrument [Line Items]
Balance of commercial paper at end of period (par value)	$ 450,000,000
Interest rate	5.85%
Proceeds from issuance of debt	$ 445,000,000
Term Loan Credit Agreement
Debt Instrument [Line Items]
Balance of commercial paper at end of period (par value)		$ 250,000,000				$ 170,000,000
Debt instrument, increase (decrease), net		$ 80,000,000
Federal Home Loan Bank Borrowings
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 781,000,000
Long-term line of credit				$ 372,000,000			$ 138,000,000