| Document and Entity Information | Dec. 02, 2024 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0000804269 |
| Document Type | 8-K |
| Document Period End Date | Dec. 02, 2024 |
| Entity Registrant Name | GENERAL MOTORS FINANCIAL COMPANY, INC. |
| Entity Incorporation State Country Code | TX |
| Entity File Number | 1-10667 |
| Entity Tax Identification Number | 75-2291093 |
| Entity Address, Address Line One | 801 Cherry Street |
| Entity Address, Address Line Two | Suite 3500 |
| Entity Address, City or Town | Fort Worth |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 76102 |
| City Area Code | (817) |
| Local Phone Number | 302-7000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | 5.250% Senior Notes due 2026 |
| Trading Symbol | GM/26 |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
