| Document and Entity Information | Dec. 05, 2022 |
| Document And Entity Information [Line Items] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001827871 |
| Document Type | 8-K |
| Document Period End Date | Dec. 05, 2022 |
| Entity Registrant Name | TLG Acquisition One Corp. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-39948 |
| Entity Tax Identification Number | 85-3310839 |
| Entity Address, Address Line One | 515 North Flagler Drive |
| Entity Address, Address Line Two | Suite 520 |
| Entity Address, City or Town | West Palm Beach |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33401 |
| City Area Code | (561) |
| Local Phone Number | 945-8340 |
| Written Communications | true |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Warrant [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Units, each consisting of one share of Class A common stock and one-third redeemable warrant |
| Trading Symbol | TLGA.U |
| Security Exchange Name | NYSE |
| Common Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Class A common stock, par value $0.0001 per share |
| Trading Symbol | TLGA |
| Security Exchange Name | NYSE |
