CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Revenues:
Principal transactions	$ 142	$ 148	$ 275	$ 295
Interest income	242	200	467	403
Total revenues	2,711	2,409	5,529	4,669
Interest expense	(38)	(37)	(75)	(75)
Net revenues	2,673	2,372	5,454	4,594
Non-interest expenses:
Compensation, commissions and benefits	1,852	1,648	3,736	3,148
Non-compensation expenses:
Communications and information processing	127	107	239	206
Occupancy and equipment	62	57	121	114
Business development	34	21	69	44
Investment sub-advisory fees	40	31	78	59
Professional fees	22	24	48	54
Bank loan provision/(benefit) for credit losses	21	(32)	10	(18)
Acquisition-related expenses	11	0	17	2
Other	71	69	145	139
Total non-compensation expenses	388	277	727	600
Total non-interest expenses	2,240	1,925	4,463	3,748
Pre-tax income	433	447	991	846
Provision for income taxes	110	92	222	179
Net income	$ 323	$ 355	$ 769	$ 667
Earnings per common share – basic (in dollars per share)	$ 1.56	$ 1.72	$ 3.71	$ 3.23
Earnings per common share – diluted (in dollars per share)	$ 1.52	$ 1.68	$ 3.61	$ 3.16
Weighted-average common shares outstanding – basic (in shares)	207.7	206.7	207.0	206.0
Weighted-average common and common equivalent shares outstanding – diluted (in shares)	213.0	211.8	212.6	210.6
Net income	$ 323	$ 355	$ 769	$ 667
Other comprehensive (loss) income, net of tax:
Available-for-sale securities	(320)	(76)	(375)	(93)
Currency translations, net of the impact of net investment hedges	(11)	2	(11)	20
Cash flow hedges	29	19	38	24
Total other comprehensive loss, net of tax	(302)	(55)	(348)	(49)
Total comprehensive income	21	300	421	618
Asset management and related administrative fees
Revenues:
Revenue from contract with customer	1,464	1,173	2,846	2,240
Total brokerage revenues
Revenues:
Total brokerage revenues	564	591	1,122	1,119
Securities commissions
Revenues:
Revenue from contract with customer	422	443	847	824
Account and service fees
Revenues:
Revenue from contract with customer	179	159	356	304
Investment banking
Revenues:
Revenue from contract with customer	235	242	660	503
Other
Revenues:
Revenue from contract with customer	$ 27	$ 44	$ 78	$ 100