Consolidated Statements of Financial Condition - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
ASSETS:
Cash and cash equivalents	$ 1,014	$ 1,498
Cash and investments segregated under federal regulations	10,387	8,241
Securities purchased under agreements to resell	1,693	911
Receivable from:
Clients	3,328	3,359
Mutual funds, insurance companies and other	661	555
Brokers, dealers and clearing organizations	204	261
Securities owned, at fair value:
Investment securities	332	250
Inventory securities	50	43
Lease right-of-use assets	876	0
Equipment, property and improvements, at cost, net of accumulated depreciation and amortization	616	555
Other assets	156	142
TOTAL ASSETS	19,317	15,815
Payable to:
Clients	12,891	11,117
Brokers, dealers and clearing organizations	66	90
Lease liabilities	898	0
Accrued compensation and employee benefits	1,747	1,465
Accounts payable, accrued expenses and other	351	288
Total liabilities before partnership capital	15,953	12,960
Commitments and contingencies (Notes 13 and 14)
Partnership capital subject to mandatory redemption, net of reserve for anticipated withdrawals and partnership loans	2,957	2,507
Reserve for anticipated withdrawals	407	348
Total partnership capital subject to mandatory redemption	3,364	2,855
TOTAL LIABILITIES	19,317	15,815
Limited Partnership Capital [Member]
Payable to:
Partnership capital subject to mandatory redemption, net of reserve for anticipated withdrawals and partnership loans	1,249	884
Subordinated Limited Partnership Capital [Member]
Payable to:
Partnership capital subject to mandatory redemption, net of reserve for anticipated withdrawals and partnership loans	523	504
General Partnership Capital [Member]
Payable to:
Partnership capital subject to mandatory redemption, net of reserve for anticipated withdrawals and partnership loans	$ 1,185	$ 1,119