Regulatory Capital and Other Regulatory Matters (Tables)

9 Months Ended

Sep. 30, 2024

Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

The following table summarizes our capital ratios under U.S. Basel III.

	September 30, 2024				December 31, 2023				Required minimum (a)		Well-capitalized minimum
($ in millions)	Amount		Ratio		Amount		Ratio
Capital ratios
Common Equity Tier 1 (to risk-weighted assets)
Ally Financial Inc.	$	15,298	9.79	%	$	15,129	9.36	%	4.50	%	(b)
Ally Bank	17,579		11.92		17,217		11.24		4.50		6.50	%
Tier 1 (to risk-weighted assets)
Ally Financial Inc.	$	17,564	11.24	%	$	17,392	10.76	%	6.00	%	6.00	%
Ally Bank	17,579		11.92		17,217		11.24		6.00		8.00
Total (to risk-weighted assets)
Ally Financial Inc.	$	20,173	12.90	%	$	20,055	12.41	%	8.00	%	10.00	%
Ally Bank	19,441		13.18		19,144		12.50		8.00		10.00
Tier 1 leverage (to adjusted quarterly average assets) (c)
Ally Financial Inc.	$	17,564	8.99	%	$	17,392	8.67	%	4.00	%	(b)
Ally Bank	17,579		9.52		17,217		9.07		4.00		5.00	%

(a)In addition to the minimum risk-based capital requirements for the Common Equity Tier 1 capital, Tier 1 capital, and total capital ratios, Ally and Ally Bank were required to maintain a minimum capital conservation buffer of 2.5% at both September 30, 2024, and December 31, 2023. In October 2024, Ally’s capital conservation buffer requirement increased to 2.6%, reflecting its updated stress capital buffer requirement.

(b)Currently, there is no ratio component for determining whether a BHC is “well-capitalized.”

(c)Federal regulatory reporting guidelines require the calculation of adjusted quarterly average assets using a daily average methodology.

Schedule of Common Share Distribution Activity

The following table presents information related to our common stock and distributions to our common stockholders.

	Common stock repurchased during period (a) (b)			Number of common shares outstanding		Cash dividends declared per common share (c)
($ in millions, except per share data; shares in thousands)	Approximate dollar value		Number of shares	Beginning of period	End of period
2023
First quarter	$	27	836	299,324	300,821	$	0.30
Second quarter	2		58	300,821	301,619	0.30
Third quarter	—		5	301,619	301,630	0.30
Fourth quarter	4		145	301,630	302,459	0.30
2024
First quarter	$	29	781	302,459	303,978	$	0.30
Second quarter	1		13	303,978	304,656	0.30
Third quarter	1		27	304,656	304,715	0.30

(a)Includes shares of common stock withheld to cover income taxes owed by participants in our share-based incentive plans.

(b)Since the commencement of our initial stock-repurchase program in the third quarter of 2016, we have reduced the number of outstanding shares of our common stock by 37%, from 484 million as of June 30, 2016, to 305 million as of September 30, 2024. Except for repurchases made of shares withheld to cover income taxes owed by participants in our share-based incentive plans, we did not make any common-stock repurchases in 2023 or the first nine months of 2024, and at this time, the Board has not authorized a stock-repurchase program for 2024.

(c)On October 7, 2024, our Board declared a quarterly cash dividend of $0.30 per share on all common stock, payable on November 15, 2024, to stockholders of record at the close of business on November 1, 2024.