Debt - Credit Facility (Details) - USD ($) $ in Millions	Mar. 27, 2026	Mar. 31, 2026
Line of Credit Facility [Line Items]
Non-operating indebtedness of subsidiaries to total capitalization, maximum	7.50%
Five Year Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt term	5 years
Maximum borrowing capacity	$ 2,000
Letter of credit		$ 61
Minimum consolidated net worth requirement	$ 9,932
Percentage of aggregate net proceeds of equity issuances	50.00%
Debt-to-capital ratio, maximum	0.35
Five Year Revolving Credit Facility \| Letter of Credit
Line of Credit Facility [Line Items]
Line of credit outstanding		$ 0

Non-operating indebtedness of subsidiaries to total capitalization, maximum

No definition available.

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- Definition

Percentage of aggregate net proceeds of equity issuances received by the entity that is added to the specified level of net worth in calculating total minimum net worth to be maintained in accordance with the terms of the credit facility.

+ References

No definition available.

+ Details

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- Definition

Total Aggregate Indebtedness divided by Net Capital

+ References

No definition available.

+ Details

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 605
-Name Accounting Standards Codification
-Section 55
-Paragraph 15
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- Definition

Fair value of the amount outstanding under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
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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.

+ References

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- 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
-Topic 210
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- Definition

Amount of minimum net worth required for mortgage banking as defined by regulatory framework.

+ References

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