Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 0	$ 0	$ 0
Adjustments to reconcile net income to net cash provided by operating activities:
Income before allocations to partners	1,612	1,404	1,605
Depreciation and amortization	567	499	461
Changes in assets and liabilities:
Investments segregated under federal regulations	(66)	2,981	(2,140)
Securities purchased under agreements to resell	(702)	1,092	185
Net payable to clients	(2,660)	(2,592)	1,839
Net receivable from brokers, dealers and clearing organizations	(290)	93	26
Receivable from mutual funds, insurance companies and other	(41)	0	(32)
Securities owned	248	(515)	444
Other assets	(206)	(54)	(195)
Lease liabilities	(338)	(326)	(322)
Accrued compensation and employee benefits	341	(236)	297
Accounts payable, accrued expenses and other	309	7	227
Net cash (used in) provided by operating activities	(1,226)	2,353	2,395
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of fixed assets	(456)	(302)	(234)
Net cash used in investing activities	(456)	(302)	(234)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of partnership loans	58	71	45
Issuance of partnership interests	638	63	66
Redemption of partnership interests	(386)	(336)	(260)
Distributions from partnership capital	(1,193)	(1,173)	(1,181)
Net cash used in financing activities	(883)	(1,375)	(1,330)
Net (decrease) increase in cash, cash equivalents and restricted cash	(2,565)	676	831
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH:
Beginning of year	8,382	7,706	6,875
End of year	$ 5,817	$ 8,382	$ 7,706