Equity Securities Net Gains (Losses) from Equity Securities Not Held for Trading (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Net Gains (Losses) from Equity Securities [Line Items]
Total net gains (losses) from equity securities not held for trading	$ 257	$ (25)	$ 355	$ (476)
Net gains (losses) from equity securities [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) from equity securities carried at fair value	10	16	70	26
Net gains (losses) from nonmarketable equity securities not carried at fair value	247	(41)	285	(502)
Impairment write-downs [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) from nonmarketable equity securities not carried at fair value	(178)	(211)	(568)	(876)
Net unrealized gains (losses) [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) from nonmarketable equity securities not carried at fair value	(39)	46	290	185
Net realized gains [Member]
Net Gains (Losses) from Equity Securities [Line Items]
Net gains (losses) from nonmarketable equity securities not carried at fair value	$ 464	$ 124	$ 563	$ 189

Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(3)(d))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 321
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479536/321-10-50-4

+ Details

Name:	us-gaap_EquitySecuritiesFvNiGainLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of unrealized and realized gain (loss) on investment in equity securities without readily determinable fair value.

+ References

No definition available.

+ Details

Name:	wfc_EquitySecuritiesWithoutReadilyDeterminableFairValueGainLoss
Namespace Prefix:	wfc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The revenue derived from equity investments held at fair value (excluding trading securities), and investments accounted for under both the equity method and measurement alternative. Includes marketable equity securities, private equity, and principal investments: includes realized investment gains or losses.

+ References

No definition available.

+ Details

Name:	wfc_GainsLossesFromEquityInvestments
Namespace Prefix:	wfc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

[Line Items] for Net Gains (Losses) from Equity Securities [Table]

+ References

No definition available.

+ Details

Name:	wfc_NetGainsLossesFromEquitySecuritiesLineItems
Namespace Prefix:	wfc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_IncomeStatementLocationAxis=wfc_GainLossOnEquityInvestmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=wfc_ImpairmentInValueOfAssetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=wfc_UnrealizedGainsLossesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=wfc_RealizedGainsOnSaleMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: