INCOME TAXES (Tables)

12 Months Ended

Sep. 30, 2025

Income Tax Disclosure [Abstract]

Schedule of U.S. and Foreign Components of Pre-Tax Income

The following table presents our U.S. and foreign components of pre-tax income for each respective period.

	Year ended September 30,
$ in millions	2025		2024		2023
U.S.	$	2,608	$	2,534	$	2,193
Foreign	106		109		87
Pre-tax income	$	2,714	$	2,643	$	2,280

Schedule of Income Tax Provision/(Benefit) Allocation

The following table details the total income tax provision/(benefit) allocation for each respective period.

	Year ended September 30,
$ in millions	2025		2024		2023
Included in:
Net income	$	579	$	575	$	541
Equity, arising from available-for-sale securities recorded through OCI	30		149		3
Equity, arising from cash flow hedges recorded through OCI	(2)		(12)		—
Equity, arising from currency translations, net of the impact of net investment hedges recorded through OCI	13		—		(4)
Total provision for income taxes	$	620	$	712	$	540

Schedule of Provision/(Benefit) for Income Taxes

The following table details our provision/(benefit) for income taxes included in net income for each respective period.

	Year ended September 30,
$ in millions	2025		2024		2023
Current:
Federal	$	463	$	486	$	468
State and local	126		131		122
Foreign	42		41		39
Total current	$	631	$	658	$	629
Deferred:
Federal	(26)		(68)		(59)
State and local	(21)		(12)		(16)
Foreign	(5)		(3)		(13)
Total deferred	$	(52)	$	(83)	$	(88)
Total provision for income taxes included in net income	$	579	$	575	$	541

Schedule of Reconciliation of Provision for Income Taxes

The following table details a reconciliation of the provision for income taxes at the U.S. federal statutory income tax rate to our actual provision for income taxes and the effective income tax rate for each respective period.

	Year ended September 30,
	2025				2024				2023
$ in millions	Amount		Rate		Amount		Rate		Amount		Rate
Provision calculated at statutory rate	$	570	21.0	%	$	555	21.0	%	$	479	21.0	%
State income tax, net of federal benefit	79		2.9	%	87		3.3	%	83		3.6	%
Nondeductible executive compensation	18		0.7	%	13		0.5	%	13		0.6	%
Foreign tax rate differential	14		0.5	%	10		0.4	%	8		0.4	%
Excess tax benefits related to share-based compensation (1)	(44)		(1.6)	%	(20)		(0.8)	%	(21)		(0.9)	%
Gains on corporate-owned life insurance policies which are not subject to tax	(28)		(1.0)	%	(51)		(1.9)	%	(22)		(1.0)	%
Federal tax credits	(26)		(1.0)	%	(23)		(1.0)	%	(14)		(0.7)	%
Nondeductible fines and penalties (2)	—		—	%	(6)		(0.2)	%	18		0.8	%
Other, net	(4)		(0.2)	%	10		0.5	%	(3)		(0.1)	%
Total	$	579	21.3	%	$	575	21.8	%	$	541	23.7	%

(1)Excess tax benefits related to share-based compensation were primarily attributable to the increase in fair value of our RSUs between grant date and delivery date which was $200 million, $91 million, and $95 million for the years ended September 30, 2025, 2024, and 2023, respectively.

(2)The year ended September 30, 2024, reflected the favorable impact of a legal and regulatory matters reserve release while the year ended September 30, 2023, reflected the impact of provisions for legal and regulatory matters.

Schedule of Deferred Tax Assets/(Liabilities)

Deferred income taxes are provided for the effects of temporary differences between the tax basis of an asset or liability and its reported amount in the financial statements. These temporary differences result in taxable or deductible amounts in future years. The cumulative effects of temporary differences that give rise to significant portions of the deferred tax asset/(liability) items are detailed in the following table.

	September 30,
$ in millions	2025		2024
Deferred tax assets:
Deferred compensation	$	455	$	433
Allowances for credit losses	143		140
Lease liabilities	135		123
Unrealized loss associated with available-for-sale securities	131		161
Accrued expenses	43		46
Net operating losses and credit carryforwards	30		26
Unrealized loss associated with loan portfolios	23		32
Property and equipment	3		—
Other	19		19
Total deferred tax assets	982		980
Less: valuation allowance	(9)		(9)
Total deferred tax assets, net of valuation allowance	973		971
Deferred tax liabilities:
ROU lease assets	(148)		(134)
Goodwill and identifiable intangible assets	(144)		(138)
Property and equipment	—		(44)
Other	(10)		(8)
Total deferred tax liabilities	(302)		(324)
Net deferred tax assets	$	671	$	647
Classified as follows in the Consolidated Statements of Financial Condition:
Deferred income taxes, net	$	671	$	651
Other payables	—		(4)
Net deferred tax assets	$	671	$	647

The following table presents deferred tax assets and valuation allowances relating to carryforwards for the periods indicated.

	Year ended September 30,
$ in millions	2025		2024		Expires beginning of fiscal year
Deferred tax asset:
U.S. Federal net operating losses (1)	$	5	$	8	Indefinitely
U.S. State net operating losses (1)	5		5		2028
Foreign net operating losses	20		13		2042
Total deferred tax asset related to carryforwards	$	30	$	26
Valuation allowance:
U.S. Federal net operating losses	$	1	$	2
U.S. State net operating losses	5		5
Foreign net operating losses	3		2
Net valuation allowance	$	9	$	9

(1)Both the federal and state net operating loss carryforwards relate to separate company entity filings. As a result, these losses are not able to be utilized in our consolidated filings.

Schedule of Aggregate Changes in Balances for Uncertain Tax Positions

The following table presents the aggregate changes in the balances for uncertain tax positions.

	Year ended September 30,
$ in millions	2025		2024		2023
Uncertain tax positions beginning of year	$	48	$	41	$	43
Increases for tax positions related to the current year	15		6		5
Increases for tax positions related to prior years	6		9		4
Decreases for tax positions related to prior years	—		(2)		(2)
Decreases due to statute of limitations expirations	(16)		(6)		(8)
Decreases related to settlements	(6)		—		(1)
Uncertain tax positions end of year	$	47	$	48	$	41