Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net Income (Loss)	$ 197,497	$ 14,246	$ (319,918)
Income (Loss) from Discontinued Operations, net of taxes	14,420	(72,794)	(4,581)
Income (Loss) from Continuing Operations	183,077	87,040	(315,337)
Other Comprehensive Income (Loss) from Continuing Operations, net of taxes	33,721	(10,766)	(24,475)
Comprehensive Income (Loss)	231,218	3,480	(344,393)
Comprehensive income attributable to noncontrolling interests	(3,378)	0	0
Comprehensive Income (Loss) attributable to Tribune Media Company	227,840	3,480	(344,393)
Continuing Operations
Income (Loss) from Continuing Operations	183,077	87,040	(315,337)
Change in unrecognized benefit plan gains and losses arising during the period, net of taxes of $6,725, $(4,717), and $(5,176), respectively	19,231	(7,316)	(8,032)
Adjustment for previously unrecognized benefit plan gains and losses included in net income, net of taxes of $(103), $(114) and $(25), respectively	(160)	(176)	(36)
Change in unrecognized benefit plan gains and losses, net of taxes	19,071	(7,492)	(8,068)
Changes in unrealized holding gains and losses arising during the period, net of taxes of $(60), $604 and $(2,133), respectively	(95)	936	(3,308)
Adjustment for gain on investment sales included in net income net of taxes of $(1,921)	(2,980)	0	0
Change in marketable securities, net of taxes	(3,075)	936	(3,308)
Unrealized gains and losses, net of taxes of $(3,054)	(3,591)	0	0
Gains and losses reclassified to net income, net of taxes of $2,127	3,298	0	0
Change in unrecognized gains and losses on cash flow hedging instruments, net of taxes	(293)	0	0
Change in foreign currency translation adjustments, net of taxes of $2,774, $(1,545), and $(1,458), respectively	6,247	(2,362)	(3,519)
Other Comprehensive Income (Loss) from Continuing Operations, net of taxes	21,950	(8,918)	(14,895)
Comprehensive Income (Loss)	205,027	78,122	(330,232)
Discontinued Operations
Income (Loss) from Discontinued Operations, net of taxes	14,420	(72,794)	(4,581)
Comprehensive Income (Loss)	$ 26,191	$ (74,642)	$ (14,161)