CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Revenues:
Principal transactions	$ 148	$ 105	$ 295	$ 202
Noninterest Income	2,209	1,826	4,266	3,589
Interest income	200	285	403	582
Total revenues	2,409	2,111	4,669	4,171
Interest expense	(37)	(43)	(75)	(94)
Net revenues	2,372	2,068	4,594	4,077
Non-interest expenses:
Compensation, commissions and benefits	1,648	1,422	3,148	2,773
Non-compensation expenses:
Communications and information processing	107	99	206	193
Occupancy and equipment	57	56	114	113
Business development	21	41	44	85
Investment sub-advisory fees	31	26	59	52
Professional fees	24	23	54	44
Bank loan provision/(benefit) for credit losses	(32)	109	(18)	107
Acquisition-related expenses	0	0	2	0
Other	69	53	139	112
Total non-compensation expenses	277	407	600	706
Total non-interest expenses	1,925	1,829	3,748	3,479
Pre-tax income	447	239	846	598
Provision for income taxes	92	70	179	161
Net income	$ 355	$ 169	$ 667	$ 437
Earnings per common share – basic (in dollars per share)	$ 2.58	$ 1.22	$ 4.85	$ 3.15
Earnings per common share – diluted (in dollars per share)	$ 2.51	$ 1.20	$ 4.74	$ 3.09
Weighted-average common shares outstanding – basic (in shares)	137.8	138.4	137.3	138.4
Weighted-average common and common equivalent shares outstanding – diluted (in shares)	141.2	141.1	140.4	141.3
Other comprehensive (loss) income, net of tax:
Available-for-sale securities	$ (76)	$ 63	$ (93)	$ 62
Currency translations, net of the impact of net investment hedges	2	(26)	20	(17)
Cash flow hedges	19	(43)	24	(33)
Total other comprehensive income/(loss), net of tax	(55)	(6)	(49)	12
Total comprehensive income	300	163	618	449
Asset management and related administrative fees
Revenues:
Revenue from contract with customer	1,173	1,006	2,240	1,961
Total brokerage revenues
Revenues:
Noninterest Income	591	515	1,119	975
Securities commissions
Revenues:
Revenue from contract with customer	443	410	824	773
Account and service fees
Revenues:
Revenue from contract with customer	159	172	304	350
Investment banking
Revenues:
Revenue from contract with customer	242	148	503	289
Other
Revenues:
Noninterest Income	$ 44	$ (15)	$ 100	$ 14