| Document and Entity Information | Jun. 16, 2021 |
| Document Information [Line Items] | |
| Document Type | 8-K/A |
| Document Period End Date | Jun. 16, 2021 |
| Entity Registrant Name | 23andMe Holding Co. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-39587 |
| Entity Tax Identification Number | 87-1240344 |
| Entity Address, Address Line One | 223 N. Mathilda Avenue |
| Entity Address, City or Town | Sunnyvale |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94086 |
| City Area Code | 650 |
| Local Phone Number | 938-6300 |
| Entity Information, Former Legal or Registered Name | VG Acquisition Corp. |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Amendment Description | On June 21, 2021, 23andMe Holding Co. (formerly known as VG Acquisition Corp.) filed a Current Report on Form 8-K (the “Original Report”) to report the closing of its business combination with 23andMe, Inc. and related matters under Items 1.01, 2.01, 3.02, 5.01, 5.02, 5.05, 5.06, and 9.01 of Form 8-K. Due to the large number of events to be reported under the specified items of Form 8-K, this Form 8-K/A is being filed to amend the Original Report to include additional matters related to the closing of the business combination under Items 3.03, 4.01, and 5.03 of Form 8-K and all information and exhibits included in the Original Report continue to apply, as supplemented by this Current Report on Form 8-K. Interested parties should refer to the Original Report for more information about the business combination. Capitalized terms used herein and not otherwise defined have the meaning set forth in the Original Report. |
| Entity Central Index Key | 0001804591 |
| Current Fiscal Year End Date | --12-31 |
| Amendment Flag | true |
| Common Class A [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Class A Common Stock, $0.0001 par value per share |
| Trading Symbol | ME |
| Security Exchange Name | NASDAQ |
| Warrant [Member] | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Redeemable warrants, each whole warrant exercisable for one share of Class A Common Stock |
| Trading Symbol | MEUSW |
| Security Exchange Name | NASDAQ |
| Former Address [Member] | |
| Document Information [Line Items] | |
| Entity Address, Address Line One | 65 Bleecker Street |
| Entity Address, Address Line Two | 6th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10012 |
