Document and Entity Information	6 Months Ended
	May 31, 2014
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	May 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q2
Entity Registrant Name	JEFFERIES GROUP LLC
Entity Central Index Key	0001084580
Current Fiscal Year End Date	--11-30
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding	0