Document and Entity Information - USD ($)	12 Months Ended
	Nov. 30, 2015	May. 31, 2015
Document And Entity Information [Abstract]
Entity Registrant Name	JEFFERIES GROUP LLC
Entity Central Index Key	0001084580
Current Fiscal Year End Date	--11-30
Entity Filer Category	Non-accelerated Filer
Document Type	10-K/A
Document Period End Date	Nov. 30, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Amendment Flag	true
Amendment Description	In reliance on General Instruction A. (4) to Form 10-K, we are filing this Amendment to our Form 10-K solely to add Schedule I as required pursuant to Rule 5.04 of Regulation S-X.
Entity Common Stock, Shares Outstanding	0
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float		$ 0