Submission	May 11, 2026
Submission [Line Items]
Central Index Key	0000040729
Registrant Name	Ally Financial Inc.
Form Type	S-8
Submission Type	S-8
Fee Exhibit Type	EX-FILING FEES

Offerings - Offering: 1	May 11, 2026 USD ($) shares
Offering:
Fee Previously Paid	false
Other Rule	true
Security Type	Equity
Security Class Title	Common Stock, par value $0.01 per share
Amount Registered \| shares	37,551,391
Proposed Maximum Offering Price per Unit	43.835
Maximum Aggregate Offering Price	$ 1,646,065,224.49
Fee Rate	0.01381%
Amount of Registration Fee	$ 227,321.61
Offering Note	(1) This Registration Statement on Form S-8 (this "Registration Statement") relates to 37,551,391 shares of common stock, par value $0.01 per share ("Common Stock"), of Ally Financial Inc. (the "Registrant") issuable as follows (i) 25,217,502 shares of Common Stock issuable pursuant to the Ally Financial Inc. Incentive Compensation Omnibus Plan (the "2026 ICP") and (ii) 12,333,889 shares of Common Stock issuable pursuant to the Ally Financial Inc. Employee Stock Purchase Plan (the "2026 ESPP" and, together with the 2026 ICP, the "2026 Plans"). Pursuant to Rule 416 under the Securities Act of 1933, as amended, this Registration Statement also covers any additional shares of Common Stock that become issuable under either of the 2026 Plans by reason of any stock dividend, stock split or other similar transaction. (2) This Registration Statement also covers an indeterminate number of additional shares of Common Stock that may be issued pursuant to anti-dilution and other adjustment provisions of the Plan (3) Estimated solely for purposes of calculating the registration fee. This estimate has been computed in accordance with Rules 457(c) and (h)(1) and is calculated based upon the average of the high and low sales prices of the Common Stock on May 8, 2026, as reported on the New York Stock Exchange. (4) Rounded up to the nearest penny.

Offsets	May 11, 2026 USD ($) shares
Offset: 1
Offset Payment:
Offset Claimed	true
Rule 457(p) Offset	true
Registrant or Filer Name	Ally Financial Inc.
Form or Filing Type	S-8
File Number	333-258575
Initial Filing Date	Aug. 06, 2021
Fee Offset Claimed	$ 89,325.09
Security Type Associated with Fee Offset Claimed	Equity
Security Title Associated with Fee Offset Claimed	Common Stock, par value $0.01 per share
Unsold Securities Associated with Fee Offset Claimed \| shares	16,251,391
Unsold Aggregate Offering Amount Associated with Fee Offset Claimed	$ 818,745,079.58
Termination / Withdrawal Statement	The Registrant previously registered 36,827,657 shares of Common Stock under the Registration Statement on Form S-8, initially filed on August 6, 2021 (Registration No. 333-258575) (the "Prior Registration Statement") in connection with 2021 Ally Financial Inc. Incentive Compensation Plan, the 2021 Ally Financial Inc. Non-Employee Directors Equity Compensation Plan and the 2021 Ally Financial Inc. Employee Stock Purchase Plan (the "Prior Plans"), 16,251,391 of which remained unsold (the "Unsold Securities") as of the effective date of the 2026 Plans and were carried over and are available for issuance pursuant to the 2026 Plans. The Registrant has terminated any offering of Unsold Securities under the Prior Registration Statement. A registration fee of $89,325.09 with respect to the Unsold Securities was previously paid upon the filing of the Prior Registration Statement (out of a total registration fee of $202,421.67). Pursuant to Rule 457(p), the Registrant is offsetting the registration fee due under this Registration Statement by $89,325.09 which represents the portion of the registration fee previously paid with respect to the Unsold Securities previously registered on the Prior Registration Statement.
Offset: 2
Offset Payment:
Offset Claimed	false
Rule 457(p) Offset	true
Registrant or Filer Name	Ally Financial Inc.
Form or Filing Type	S-8
File Number	333-258575
Filing Date	Aug. 06, 2021
Fee Paid with Fee Offset Source	$ 89,325.09

Fees Summary	May 11, 2026 USD ($)
Fees Summary [Line Items]
Total Offering	$ 1,646,065,224.49
Total Fee Amount	227,321.61
Total Offset Amount	89,325.09
Net Fee	$ 137,996.52
Offering Table N/A
Offset Table N/A