Regulatory Capital Requirements and Other Restrictions, Minimum Required Regulatory Capital Ratios (Details)	Dec. 31, 2025
Wells Fargo & Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Banking Regulation, Global Systemically Important Bank (GSIB) Surcharge	0.0150
Banking Regulation, Countercyclical Capital Buffer	0.0000
Leverage buffer, minimum	0.0200
Wells Fargo & Company [Member] \| Advanced Approach Under Basel III [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital conservation buffer, minimum	0.0250
Wells Fargo & Company [Member] \| Standardized Approach Under Basel III [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Banking Regulation, Stress Capital Buffer (SCB)	0.0250
Wells Fargo Bank, NA [Member] \| Advanced Approach Under Basel III [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital conservation buffer, minimum	0.0250
Wells Fargo Bank, NA [Member] \| Standardized Approach Under Basel III [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital conservation buffer, minimum	0.0250

Minimum capital conservation buffer percentage required to avoid restriction on payout amount of eligible retained income as defined by regulatory framework.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1

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Countercyclical capital buffer percentage as defined by regulatory framework.

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Global systemically important bank (GSIB) surcharge percentage as defined by regulatory framework.

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Minimum leverage buffer percentage as defined by regulatory framework.

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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/2009/role/commonPracticeRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1

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Stress Capital Buffer (SCB) percentage as defined by regulatory framework.

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