| Submission | Nov. 04, 2024 |
| Submission [Line Items] | |
| Central Index Key | 0000040729 |
| Registrant Name | Ally Financial Inc. |
| Registration File Number | 333-281524 |
| Form Type | S-3 |
| Submission Type | 424B2 |
| Fee Exhibit Type | EX-FILING FEES |
| Offerings - Offering: 1 | Nov. 04, 2024 USD ($) |
| Offering: | |
| Fee Previously Paid | false |
| Rule 457(r) | true |
| Security Type | Debt |
| Security Class Title | 5.5000% Ally Financial Term Notes, Series A Due November 15, 2029 |
| Maximum Aggregate Offering Price | $ 14,910,000 |
| Fee Rate | 0.01531% |
| Amount of Registration Fee | $ 2,282.72 |
| Offering Note | Calculated in accordance with rule 457(r) under the Securities Act of 1933, as amended. |
| Fees Summary | Nov. 04, 2024 USD ($) |
| Fees Summary [Line Items] | |
| Total Offering | $ 14,910,000 |
| Previously Paid Amount | 0 |
| Total Fee Amount | 2,282.72 |
| Total Offset Amount | 0 |
| Net Fee | $ 2,282.72 |
| Final Prospectus | false |
