CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Revenues:
Principal transactions	$ 126	$ 119
Interest income	1,007	1,027
Total revenues	4,176	4,035
Interest expense	(441)	(498)
Net revenues	3,735	3,537
Non-interest expenses:
Compensation, commissions and benefits	2,450	2,272
Non-compensation expenses:
Communications and information processing	194	178
Occupancy and equipment	80	73
Business development	81	68
Investment sub-advisory fees	63	53
Professional fees	37	34
Bank loan benefit for credit losses	(3)	0
Other	105	110
Total non-compensation expenses	557	516
Total non-interest expenses	3,007	2,788
Total pre-tax income	728	749
Provision for income taxes	165	149
Net income	563	600
Preferred stock dividends	1	1
Net income available to common shareholders, basic	562	599
Net income available to common shareholders, diluted	$ 562	$ 599
Earnings per common share – basic (in usd per share)	$ 2.85	$ 2.94
Earnings per common share – diluted (in usd per share)	$ 2.79	$ 2.86
Weighted-average common shares outstanding – basic (in shares)	197.1	203.7
Weighted-average common and common equivalent shares outstanding – diluted (in shares)	201.4	209.2
Net income	$ 563	$ 600
Other comprehensive income/(loss), net of tax:
Available-for-sale securities	43	(106)
Currency translations, net of the impact of net investment hedges	7	(53)
Cash flow hedges	(2)	6
Total other comprehensive income/(loss), net of tax	48	(153)
Total comprehensive income	611	447
Asset management and related administrative fees
Revenues:
Revenue from contract with customer	1,999	1,743
Total brokerage revenues
Revenues:
Total brokerage revenues	612	559
Securities commissions
Revenues:
Revenue from contract with customer	486	440
Account and service fees
Revenues:
Revenue from contract with customer	308	342
Investment banking
Revenues:
Revenue from contract with customer	208	325
Other
Revenues:
Revenue from contract with customer	$ 42	$ 39