Capital Stock Value Including Mandatorily Redeemable Stock

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- Definition

Capital Stock Value Including Mandatorily Redeemable Stock Percent

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- Definition

Concentration Risk, Threshold Percentage

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- Definition

The face amount of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
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- Definition

Amount of Federal Home Loan Bank (FHLBank) advances to member financial institutions.

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- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
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- Definition

Amount of interest income from Federal Home Loan Bank (FHLBank) advances to member financial institutions.

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
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Activities with Stockholders (Business Concentrations) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Related Party Transaction [Line Items]
Advances	$ 127,032		$ 110,230
Advances	1,291	$ 1,186
Residential Portfolio Segment
Related Party Transaction [Line Items]
Financing Receivable, Allowance for Credit Loss, Noncurrent	14,916		14,546
Standby Letters of Credit [Member]
Related Party Transaction [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	18,591		18,263
Athene Annuity and Life Company
Related Party Transaction [Line Items]
Capital Stock Value Including Mandatorily Redeemable Stock	$ 1,280		$ 1,057
Capital Stock Value Including Mandatorily Redeemable Stock Percent	17.00%		16.00%
Financing Receivable, Allowance for Credit Loss, Noncurrent			$ 0
Advances	$ 28,221		23,271
Advances	258		863
Athene Annuity and Life Company \| Residential Portfolio Segment
Related Party Transaction [Line Items]
Financing Receivable, Allowance for Credit Loss, Noncurrent	0
Superior Guaranty Insurance Company
Related Party Transaction [Line Items]
Capital Stock Value Including Mandatorily Redeemable Stock	$ 4		$ 4
Capital Stock Value Including Mandatorily Redeemable Stock Percent	0.00%		0.00%
Financing Receivable, Allowance for Credit Loss, Noncurrent			$ 93
Advances	$ 0		0
Advances	0		0
Superior Guaranty Insurance Company \| Residential Portfolio Segment
Related Party Transaction [Line Items]
Financing Receivable, Allowance for Credit Loss, Noncurrent	88
Wells Fargo Bank N.A.
Related Party Transaction [Line Items]
Capital Stock Value Including Mandatorily Redeemable Stock	$ 1,372		$ 741
Capital Stock Value Including Mandatorily Redeemable Stock Percent	19.00%		11.00%
Advances	$ 30,000		$ 16,000
Advances	264		348
Wells Fargo Bank N.A. \| Residential Portfolio Segment
Related Party Transaction [Line Items]
Financing Receivable, Allowance for Credit Loss, Noncurrent	5		5
Wells Fargo Bank N.A. \| Standby Letters of Credit [Member]
Related Party Transaction [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability	11,800		10,900
Principal Owner [Member]
Related Party Transaction [Line Items]
Capital Stock Value Including Mandatorily Redeemable Stock	$ 2,656		$ 1,802
Capital Stock Value Including Mandatorily Redeemable Stock Percent	36.00%		27.00%
Financing Receivable, Allowance for Credit Loss, Noncurrent			$ 98
Advances	$ 58,221		39,271
Advances	522		$ 1,211
Principal Owner [Member] \| Residential Portfolio Segment
Related Party Transaction [Line Items]
Financing Receivable, Allowance for Credit Loss, Noncurrent	$ 93
Stockholders' Equity, Total [Member] \| Stockholders' Capital Stock Outstanding Concenetration Risk [Member] \| Minimum [Member]
Related Party Transaction [Line Items]
Concentration Risk, Threshold Percentage	10.00%