| Cover | Dec. 16, 2021 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 16, 2021 |
| Entity File Number | 001-39346 |
| Entity Registrant Name | MONEYLION INC. |
| Entity Central Index Key | 0001807846 |
| Entity Tax Identification Number | 85-0849243 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 30 West 21st Street |
| Entity Address, Address Line Two | 9th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10010 |
| City Area Code | 212 |
| Local Phone Number | 380-1735 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Class A Common Stock Par Value 0. 0001 Per Share [Member] | |
| Title of 12(b) Security | Class A common stock, par value $0.0001 per share |
| Trading Symbol | ML |
| Security Exchange Name | NYSE |
| Redeemable Warrants Each Whole Warrant Exercisable For One Share Of Common Stock 0. 0001 Par Value [Member] | |
| Title of 12(b) Security | Redeemable Warrants: each whole warrant exercisable for one share of common stock, par value $0.0001 per share |
| Trading Symbol | ML WS |
| Security Exchange Name | NYSE |
