Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 26, 2021	Mar. 27, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 0	$ 0
Adjustments to reconcile net income to net cash provided by operating activities:
Income before allocations to partners	380	303
Depreciation and amortization	30	30
Changes in assets and liabilities:
Investments segregated under federal regulations	(857)	(3,105)
Securities purchased under agreements to resell	(45)	(52)
Net payable to clients	101	2,885
Net receivable from brokers, dealers and clearing organizations	(32)	(307)
Receivable from mutual funds, insurance companies and other	(59)	(56)
Securities owned	859	(52)
Lease right-of-use assets	(1)	(12)
Other assets	(18)	12
Lease liabilities	1	5
Accrued compensation and employee benefits	(227)	(346)
Accounts payable, accrued expenses and other	(111)	(85)
Net cash provided by (used in) operating activities	21	(780)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of equipment, property and improvements	(30)	(42)
Cash used in investing activities	(30)	(42)
CASH FLOWS FROM FINANCING ACTIVITIES:
Issuance of partnership interests	63	50
Redemption of partnership interests	(71)	(81)
Distributions from partnership capital	(403)	(312)
Net cash used in financing activities	(411)	(343)
Net decrease in cash, cash equivalents and restricted cash	(420)	(1,165)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	6,875	8,007
End of period	$ 6,455	$ 6,842