| Document and Entity Information | Oct. 31, 2019 |
| Document And Entity Information [Line Items] | |
| Entity Registrant Name | WELLS FARGO & COMPANY/MN |
| Amendment Flag | false |
| Entity Central Index Key | 0000072971 |
| Document Type | 8-K |
| Document Period End Date | Oct. 31, 2019 |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-2979 |
| Entity Tax Identification Number | 41-0449260 |
| Entity Address, Address Line One | 420 Montgomery Street |
| Entity Address, City or Town | San Francisco |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94104 |
| Local Phone Number | 1-866-249-3302 |
| City Area Code | 866 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Common Stock, par value $1-2/3 [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | Common Stock, par value $1-2/3 |
| Trading Symbol | WFC |
| 7.5% Non-Cumulative Perpetual Convertible Class A Preferred Stock, Series L [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | 7.5% Non-Cumulative Perpetual Convertible Class A Preferred Stock, Series L |
| Trading Symbol | WFC.PRL |
| Depositary Shares Each Representing 11000th Interest In Share Of Noncumulative Perpetual Class Preferred Stock Series N [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series N |
| Trading Symbol | WFC.PRN |
| Depositary Shares Each Representing 11000th Interest In Share Of Noncumulative Perpetual Class Preferred Stock Series O [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series O |
| Trading Symbol | WFC.PRO |
| Depositary Shares Each Representing 11000th Interest In Share Of Noncumulative Perpetual Class Preferred Stock Series P [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series P |
| Trading Symbol | WFC.PRP |
| Depositary Shares Each Representing 11000th Interest In Share Of 5. 85 Fixedtofloating Rate Noncumulative Perpetual Class Preferred Stock Series Q [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | Depositary Shares, each representing a 1/1000th interest in a share of 5.85% Fixed-to-Floating Rate Non-Cumulative Perpetual Class A Preferred Stock |
| Trading Symbol | WFC.PRQ |
| Depositary Shares Each Representing 11000th Interest In Share Of 6. 625 Fixedtofloating Rate Noncumulative Perpetual Class Preferred Stock Series R [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | Depositary Shares, each representing a 1/1000th interest in a share of 6.625% Fixed-to-Floating Rate Non-Cumulative Perpetual Class A Preferred Stock |
| Trading Symbol | WFC.PRR |
| Depositary Shares Each Representing 11000th Interest In Share Of Noncumulative Perpetual Class Preferred Stock Series T [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series T |
| Trading Symbol | WFC.PRT |
| Depositary Shares Each Representing 11000th Interest In Share Of Noncumulative Perpetual Class Preferred Stock Series V [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series V |
| Trading Symbol | WFC.PRV |
| Depositary Shares Each Representing 11000th Interest In Share Of Noncumulative Perpetual Class Preferred Stock Series W [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series W |
| Trading Symbol | WFC.PRW |
| Depositary Shares Each Representing 11000th Interest In Share Of Noncumulative Perpetual Class Preferred Stock Series X [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series X |
| Trading Symbol | WFC.PRX |
| Depositary Shares Each Representing 11000th Interest In Share Of Noncumulative Perpetual Class Preferred Stock Series Y [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | Depositary Shares, each representing a 1/1000th interest in a share of Non-Cumulative Perpetual Class A Preferred Stock, Series Y |
| Trading Symbol | WFC.PRY |
| Guarantee of 5.80% Fixed-to-Floating Rate Normal Wachovia Income Trust Securities of Wachovia Capital Trust III [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | Guarantee of 5.80% Fixed-to-Floating Rate Normal Wachovia Income Trust Securities of Wachovia Capital Trust III |
| Trading Symbol | WBTP |
| Guarantee Of 5. 80 Fixedtofloating Rate Normal Wachovia Income Trust Securities Of Wachovia Capital Trust Iii [Member] | |
| Document And Entity Information [Line Items] | |
| Security Exchange Name | NYSE |
| Title of 12(b) Security | Guarantee of Medium-Term Notes, Series A, due October 30, 2028 of Wells Fargo Finance LLC |
| Trading Symbol | WFC/28A |
