Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (31)	$ 33	$ (47)	$ 31
Foreign currency translation adjustments, net of tax	(2)	(1)	(8)	1
Net unrealized gain (loss) on available-for-sale securities, net of tax	32	(16)	55	(4)
Reclassification adjustment for gain on available-for-sale securities realized in net loss	(20)	0	(20)	0
Net unrealized gain (loss) on foreign exchange contracts, net of tax	(2)	(1)	(5)	2
Comprehensive income (loss)	(23)	15	(25)	30
Less: Comprehensive loss attributable to noncontrolling interest	0	8	0	8
Comprehensive income (loss) attributable to Lions Gate Entertainment Corp. shareholders	$ (23)	$ 23	$ (25)	$ 38