CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (326)	$ (2,429)	$ 105
Adjustments to post-retirement obligations, net of taxes	1	(1)	(1)
Share of other comprehensive gain (loss) of equity method investments	7	(7)	0
Comprehensive (loss) income	(318)	(2,437)	104
Comprehensive income attributable to redeemable noncontrolling interests	(18)	(56)	(48)
Comprehensive (income) loss attributable to noncontrolling interests	(70)	71	(10)
Comprehensive (loss) income attributable to Sinclair Broadcast Group	$ (406)	$ (2,422)	$ 46