Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2017	Aug. 31, 2016
Statement of Comprehensive Income [Abstract]
Net earnings (loss)		$ 83,825	$ 41,158	$ 267,635	$ (71,669)
Other comprehensive income (loss), net of tax:
Currency translation and other adjustments		3,830	(55,945)	27,182	(79,804)
Changes in instrument specific credit risk	[1]	3,508	(2,466)	(8,870)	(4,771)
Cash flow hedges		(1,585)	0	(1,585)	0
Total other comprehensive income (loss), net of tax	[2]	5,753	(58,411)	16,727	(84,575)
Comprehensive income (loss)		89,578	(17,253)	284,362	(156,244)
Net earnings (loss) attributable to noncontrolling interests		10	(11)	50	77
Comprehensive income (loss) attributable to Jefferies Group LLC		$ 89,568	$ (17,242)	$ 284,312	$ (156,321)

[1] Includes income tax expense of approximately $2.1 million and income tax benefit of approximately $5.3 million for the three and nine months ended August 31, 2017, respectively, and income tax benefit of approximately $1.6 million and $3.1 million for the three and nine months ended August 31, 2016, respectively.

[2] None of the components of other comprehensive income (loss) are attributable to noncontrolling interests.