DERIVATIVE ASSETS AND DERIVATIVE LIABILITIES (Tables)

12 Months Ended

Sep. 30, 2025

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Assets at Fair Value

The following table presents the gross fair values and notional amounts of derivatives by product type, the amounts of counterparty and cash collateral netting on our Consolidated Statements of Financial Condition, as well as collateral posted and received under credit support agreements that do not meet the criteria for netting under GAAP.

	September 30, 2025						September 30, 2024
$ in millions	Derivative assets		Derivative liabilities		Notional amount		Derivative assets		Derivative liabilities		Notional amount
Derivatives not designated as hedging instruments
Interest rate (1)	$	306	$	309	$	20,446	$	336	$	346	$	20,629
Foreign exchange	—		2		539		2		1		949
Other	—		2		1,096		4		—		1,105
Subtotal	306		313		22,081		342		347		22,683
Derivatives designated as hedging instruments
Interest rate	—		—		850		2		—		1,250
Foreign exchange	1		—		1,242		5		—		1,226
Subtotal	1		—		2,092		7		—		2,476
Total gross fair value/notional amount	307		313		$	24,173	349		347		$	25,159
Offset on the Consolidated Statements of Financial Condition
Counterparty netting	(92)		(92)				(86)		(86)
Cash collateral netting	(147)		(31)				(160)		(37)
Total amounts offset	(239)		(123)				(246)		(123)
Net amounts presented on the Consolidated Statements of Financial Condition	68		190				103		224
Gross amounts not offset on the Consolidated Statements of Financial Condition
Financial instruments	(1)		—				(5)		—
Total	$	67	$	190			$	98	$	224

(1)Included to-be-announced security contracts that are accounted for as derivatives.

Schedule of Derivative Liabilities at Fair Value

The following table presents the gross fair values and notional amounts of derivatives by product type, the amounts of counterparty and cash collateral netting on our Consolidated Statements of Financial Condition, as well as collateral posted and received under credit support agreements that do not meet the criteria for netting under GAAP.

	September 30, 2025						September 30, 2024
$ in millions	Derivative assets		Derivative liabilities		Notional amount		Derivative assets		Derivative liabilities		Notional amount
Derivatives not designated as hedging instruments
Interest rate (1)	$	306	$	309	$	20,446	$	336	$	346	$	20,629
Foreign exchange	—		2		539		2		1		949
Other	—		2		1,096		4		—		1,105
Subtotal	306		313		22,081		342		347		22,683
Derivatives designated as hedging instruments
Interest rate	—		—		850		2		—		1,250
Foreign exchange	1		—		1,242		5		—		1,226
Subtotal	1		—		2,092		7		—		2,476
Total gross fair value/notional amount	307		313		$	24,173	349		347		$	25,159
Offset on the Consolidated Statements of Financial Condition
Counterparty netting	(92)		(92)				(86)		(86)
Cash collateral netting	(147)		(31)				(160)		(37)
Total amounts offset	(239)		(123)				(246)		(123)
Net amounts presented on the Consolidated Statements of Financial Condition	68		190				103		224
Gross amounts not offset on the Consolidated Statements of Financial Condition
Financial instruments	(1)		—				(5)		—
Total	$	67	$	190			$	98	$	224

(1)Included to-be-announced security contracts that are accounted for as derivatives.

Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)

The following table details the gains/(losses) included in AOCI, net of income taxes, on derivatives designated as hedging instruments. These amounts do not include any offsetting gains/(losses) on the related hedged item. These gains/(losses) included any amounts reclassified from AOCI to net income during the year. See Note 19 for additional information.

	Year ended September 30,
$ in millions	2025		2024		2023
Interest rate (cash flow hedges)	$	—	$	(37)	$	1
Foreign exchange (net investment hedges)	39		2		(10)
Total gains/(losses) included in AOCI, net of taxes	$	39	$	(35)	$	(9)

Schedule of Net Investment Hedges in Accumulated Other Comprehensive Income (Loss)

The following table details the gains/(losses) included in AOCI, net of income taxes, on derivatives designated as hedging instruments. These amounts do not include any offsetting gains/(losses) on the related hedged item. These gains/(losses) included any amounts reclassified from AOCI to net income during the year. See Note 19 for additional information.

	Year ended September 30,
$ in millions	2025		2024		2023
Interest rate (cash flow hedges)	$	—	$	(37)	$	1
Foreign exchange (net investment hedges)	39		2		(10)
Total gains/(losses) included in AOCI, net of taxes	$	39	$	(35)	$	(9)

Schedule of Gains/(Losses) on Derivatives Recognized in Income

The following table details the gains/(losses) on derivatives not designated as hedging instruments recognized on the Consolidated Statements of Income and Comprehensive Income. These amounts do not include any offsetting gains/(losses) on the related hedged item.

		Year ended September 30,
$ in millions	Location of gains/(losses)	2025		2024		2023
Interest rate	Principal transactions/other revenue	$	15	$	11	$	20
Foreign exchange (1)	Other revenue	$	13	$	(21)	$	(23)
Other	Principal transactions	$	(4)	$	4	$	2

(1)The impacts included in our Consolidated Statements of Income and Comprehensive income of these gains/(losses) net of the gains/(losses) on the related hedged item were gains of $10 million, $7 million, and $6 million for the year ended September 30, 2025, 2024, and 2023 respectively.