Receivable from Mutual Funds, Insurance Companies, and Other - Composition of Partnership's Receivable from Mutual Funds, Insurance Companies and Other (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Brokers And Dealers [Abstract]
Deposit for Canadian retirement accounts	$ 236	$ 187
Asset-based fees from mutual fund and insurance companies	224	211
Fees for shareholder accounting services	53	52
Total	$ 513	$ 450

Amount due from mutual funds, insurance companies and other for fees and charges arising from transactions related to the entity's brokerage activities and operations.

No definition available.

Name:	ck0000815917_ReceivableFromMutualFundsInsuranceCompaniesAndOther
Namespace Prefix:	ck0000815917_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant