| Document and Entity Information | Jul. 29, 2022 |
| Cover [Abstract] | |
| Amendment Flag | true |
| Entity Central Index Key | 0001783879 |
| Document Type | 8-K/A |
| Document Period End Date | Jul. 29, 2022 |
| Entity Registrant Name | Robinhood Markets, Inc. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-40691 |
| Entity Tax Identification Number | 46-4364776 |
| Entity Address, Address Line One | 85 Willow Road |
| Entity Address, City or Town | Menlo Park |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94025 |
| City Area Code | (844) |
| Local Phone Number | 428-5411 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Class A Common Stock, $0.0001 par value per share |
| Trading Symbol | HOOD |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Amendment Description | On August 2, 2022, Robinhood Markets, Inc. (the “Company,” “we,” or “us”) filed a Current Report on Form 8-K (the “Original 8-K”) which, among other things, disclosed that on August 2, 2022 the Company had announced a reduction in force and related matters (the “August 2022 Restructuring”). This Amendment No. 1 to the Original 8-K (this “Amendment No. 1”) is being filed to amend and update the disclosures under Item 2.05 in the Original 8-K and includes additional disclosure under Item 2.06 below. The other items in the Original 8-K are not being amended and are not presented below; they speak as of the filing date of the Original 8-K. |
