Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(6))
-SubTopic 10
-Topic 220
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of claims settled.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 275
-SubTopic 10
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Indicates (true false) whether contingent loss was inestimable.

+ References

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- Definition

Number of pending claims pertaining to a loss contingency.

+ References

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- Definition

The difference between the maximum amount of estimated loss and the amount recorded as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 275
-SubTopic 10
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- Definition

Legal Actions Textual Abstract.

+ References

No definition available.

+ Details

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- Definition

Litigation Settlement, Additional Funding

+ References

No definition available.

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- Definition

Litigation Settlement, Additional Funding Allocated to WFC

+ References

No definition available.

+ Details

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Namespace Prefix:	wfc_
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Period Type:	duration

- Definition

Litigation Settlement, Funds Remaining from 2012

+ References

No definition available.

+ Details

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Period Type:

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Legal Actions (Details) $ in Millions			3 Months Ended
Legal Actions (Details) $ in Millions	Apr. 20, 2026 USD ($) legal_action	Nov. 30, 2016 USD ($)	Mar. 31, 2026 USD ($) legal_action	Nov. 13, 2025 USD ($)	Jun. 30, 2022 legal_action	Jul. 13, 2012 USD ($)
Legal Actions (Textual) [Abstract]
Loss contingency, inestimable loss [true false]			false
Liability for contingent litigation losses [Member]
Legal Actions (Textual) [Abstract]
Range of possible loss, portion not accrued			$ 1,600.0
Company 401 (K) Plan Litigation [Member] \| Subsequent Event [Member]
Legal Actions (Textual) [Abstract]
Loss Contingency, Claims Settled, Number \| legal_action	1
Loss Contingency, Estimate of Possible Loss	$ 84.0
Hiring Practices Matters [Member]
Legal Actions (Textual) [Abstract]
Loss contingency, pending claims, number \| legal_action					1
Loss Contingency, Estimate of Possible Loss				$ 85.0
Interchange Litigation [Member]
Legal Actions (Textual) [Abstract]
Loss Contingency, Estimate of Possible Loss						$ 6,600.0
Litigation Settlement, Expense		$ 6,200.0
Litigation Settlement, Funds Remaining from 2012		5,300.0
Litigation Settlement, Additional Funding		900.0
Litigation Settlement, Additional Funding Allocated to WFC		$ 94.5
Seminole Tribe - Administration of a minor’s trust [Member]
Legal Actions (Textual) [Abstract]
Loss contingency, pending claims, number \| legal_action			3