Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 28, 2018	Sep. 29, 2017
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	746	633
Depreciation and amortization	69	63
Changes in assets and liabilities:
Investments segregated under federal regulations	709	1,550
Securities purchased under agreements to resell	(77)	(17)
Net payable to clients	(2,514)	(3,059)
Net receivable from brokers, dealers and clearing organizations	9	13
Receivable from mutual funds, insurance companies and other	2	(31)
Securities owned	(45)	(60)
Other assets	9	4
Accrued compensation and employee benefits	116	169
Accounts payable, accrued expenses and other	60	29
Net cash used in operating activities	(916)	(706)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of equipment, property and improvements, net	(74)	(55)
Net cash used in investing activities	(74)	(55)
CASH FLOWS FROM FINANCING ACTIVITIES:
Issuance of partnership interests	60	73
Redemption of partnership interests	(181)	(182)
Distributions from partnership capital	(657)	(521)
Net cash used in financing activities	(778)	(630)
Net decrease in cash, cash equivalents and restricted cash	(1,768)	(1,391)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	8,537	9,572
End of period	$ 6,769	$ 8,181