CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues:
Principal transactions	$ 137	$ 143	$ 432	$ 345
Noninterest income	2,306	1,659	6,572	5,248
Interest income	205	217	608	799
Total revenues	2,511	1,876	7,180	6,047
Interest expense	(40)	(42)	(115)	(136)
Net revenues	2,471	1,834	7,065	5,911
Non-interest expenses:
Compensation, commissions and benefits	1,661	1,277	4,809	4,050
Non-compensation expenses:
Communications and information processing	109	100	315	293
Occupancy and equipment	58	55	172	168
Business development	31	21	75	106
Investment sub-advisory fees	34	23	93	75
Professional fees	26	24	80	68
Bank loan provision/(benefit) for credit losses	(19)	81	(37)	188
Losses on extinguishment of debt	98	0	98	0
Acquisition-related expenses	7	0	9	0
Other	81	55	220	167
Total non-compensation expenses	425	359	1,025	1,065
Total non-interest expenses	2,086	1,636	5,834	5,115
Pre-tax income	385	198	1,231	796
Provision for income taxes	78	26	257	187
Net income	$ 307	$ 172	$ 974	$ 609
Earnings per common share – basic (in dollars per share)	$ 2.24	$ 1.25	$ 7.09	$ 4.41
Earnings per common share – diluted (in dollars per share)	$ 2.18	$ 1.23	$ 6.92	$ 4.33
Weighted-average common shares outstanding – basic (in shares)	137.2	137.1	137.2	137.9
Weighted-average common and common equivalent shares outstanding – diluted (in shares)	141.1	139.4	140.6	140.5
Net income	$ 307	$ 172	$ 974	$ 609
Other comprehensive (loss) income, net of tax:
Available-for-sale securities	25	5	(68)	67
Currency translations, net of the impact of net investment hedges	5	11	25	(6)
Cash flow hedges	(2)	(4)	22	(37)
Total other comprehensive income/(loss), net of tax	28	12	(21)	24
Total comprehensive income	335	184	953	633
Asset management and related administrative fees
Revenues:
Revenue from contract with customer	1,262	867	3,502	2,828
Total brokerage revenues
Revenues:
Noninterest income	552	486	1,671	1,461
Securities commissions
Revenues:
Revenue from contract with customer	415	343	1,239	1,116
Account and service fees
Revenues:
Revenue from contract with customer	161	134	465	484
Investment banking
Revenues:
Revenue from contract with customer	276	139	779	428
Other
Revenues:
Noninterest income	$ 55	$ 33	$ 155	$ 47