Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 25, 2015
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	585	644
Depreciation and amortization	61	62
Changes in assets and liabilities:
Cash and investments segregated under federal regulations	(1,099)	(101)
Securities purchased under agreements to resell	73	(159)
Net payable to clients	1,316	(112)
Net receivable from brokers, dealers and clearing organizations	(33)	(3)
Receivable from mutual funds, insurance companies and other	(49)	(34)
Securities owned	(58)	(25)
Other assets	(2)	21
Accrued compensation and employee benefits	30	16
Accounts payable, accrued expenses and other	41	57
Net cash provided by operating activities	865	366
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of equipment, property and improvements, net	(52)	(71)
Net cash used in investing activities	(52)	(71)
CASH FLOWS FROM FINANCING ACTIVITIES:
Issuance of partnership interests	72	350
Redemption of partnership interests	(174)	(156)
Distributions from partnership capital	(551)	(560)
Net cash used in financing activities	(653)	(366)
Net increase (decrease) in cash and cash equivalents	160	(71)
CASH AND CASH EQUIVALENTS:
Beginning of period	937	1,033
End of period	1,097	962
Cash paid for interest	56	56
Cash paid for taxes	9	11
NON-CASH ACTIVITIES:
Issuance of general partnership interests through partnership loans in current period	146	119
Repayment of partnership loans through distributions from partnership capital in current period	$ 97	$ 101