CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (3,367)	$ (49)	$ (2,943)	$ 18
Share of other comprehensive loss of equity method investments	0	0	(9)	0
Comprehensive (loss) income	(3,367)	(49)	(2,952)	18
Comprehensive income attributable to the redeemable noncontrolling interests	(19)	(11)	(51)	(11)
Comprehensive loss (income) attributable to the noncontrolling interests	130	0	113	(3)
Comprehensive (loss) income attributable to Sinclair Broadcast Group	$ (3,256)	$ (60)	$ (2,890)	$ 4