Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2018	Mar. 31, 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	233	197
Depreciation and amortization	22	20
Changes in assets and liabilities:
Investments segregated under federal regulations	402	9
Securities purchased under agreements to resell	340	123
Net payable to clients	(821)	(11)
Net receivable from brokers, dealers and clearing organizations	45	50
Receivable from mutual funds, insurance companies and other	(60)	(89)
Securities owned	(40)	(37)
Other assets	6	(6)
Accrued compensation and employee benefits	(263)	(177)
Accounts payable, accrued expenses and other	24	14
Net cash (used in)/provided by operating activities	(112)	93
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of equipment, property and improvements, net	(25)	(23)
Net cash used in investing activities	(25)	(23)
CASH FLOWS FROM FINANCING ACTIVITIES:
Issuance of partnership interests	57	64
Redemption of partnership interests	(159)	(153)
Distributions from partnership capital	(218)	(157)
Net cash used in financing activities	(320)	(246)
Net decrease in cash, cash equivalents and restricted cash	(457)	(176)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH:
Beginning of period	8,537	9,572
End of period	$ 8,080	$ 9,396