Net Capital Requirements (Tables)

3 Months Ended

Mar. 31, 2017

Brokers And Dealers [Abstract]

Partnership's Net Capital Figures for U.S. and Canada Broker-Dealer Subsidiaries

The following table shows the Partnership’s net capital figures for its U.S. and Canada broker-dealer subsidiaries as of:

	March 31,			December 31,
	2017			2016
U.S.:
Net capital	$	974		$	998
Net capital in excess of the minimum required	$	918		$	941
Net capital as a percentage of aggregate debit    items		34.7	%		35.0	%
Net capital after anticipated capital withdrawals,    as a percentage of aggregate debit items		22.6	%		23.1	%
Canada:
Regulatory risk adjusted capital	$	33		$	37
Regulatory risk adjusted capital in excess of the    minimum required to be held by IIROC	$	27		$	33