| Document and Entity Information | May 10, 2022 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001837240 |
| Document Type | 8-K |
| Document Period End Date | May 10, 2022 |
| Entity Registrant Name | SVF INVESTMENT CORP. 3 |
| Entity Incorporation State Country Code | E9 |
| Entity File Number | 001-40175 |
| Entity Tax Identification Number | 98-1572401 |
| Entity Address, Address Line One | 1 Circle Star Way |
| Entity Address, City or Town | San Carlos |
| Entity Address, State or Province | CA |
| Entity Address, Country | US |
| Entity Address, Postal Zip Code | 94070 |
| City Area Code | (650) |
| Local Phone Number | -562-8100 |
| Written Communications | true |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Class A Ordinary Shares, $0.0001 par value |
| Trading Symbol | SVFC |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
