Basis Of Presentation And Significant Accounting Policies - Dreamcatcher (Details) (USD $)	3 Months Ended	12 Months Ended
Mar. 29, 2015	Mar. 30, 2014	Dec. 28, 2014
Variable Interest Entity [Line Items]
Operating revenues	$ 472,737,000us-gaap_SalesRevenueNet	$ 446,102,000us-gaap_SalesRevenueNet
Operating profit	60,935,000us-gaap_OperatingIncomeLoss	50,260,000us-gaap_OperatingIncomeLoss
Property, plant and equipment, net	849,033,000us-gaap_PropertyPlantAndEquipmentNet		850,597,000us-gaap_PropertyPlantAndEquipmentNet
Broadcast rights	159,975,000trco_ProgramRightsNoncurrent		157,014,000trco_ProgramRightsNoncurrent
Other intangible assets, net	2,348,016,000us-gaap_OtherIntangibleAssetsNet		2,397,794,000us-gaap_OtherIntangibleAssetsNet
Other assets	188,470,000us-gaap_OtherAssetsNoncurrent		194,899,000us-gaap_OtherAssetsNoncurrent
Total Assets	10,960,603,000us-gaap_Assets		11,396,455,000us-gaap_Assets
Contracts payable for broadcast rights	158,532,000us-gaap_ProgramRightsObligationsCurrent		178,685,000us-gaap_ProgramRightsObligationsCurrent
Long-term debt	3,490,187,000us-gaap_LongTermDebtNoncurrent		3,490,897,000us-gaap_LongTermDebtNoncurrent
Other obligations	64,009,000us-gaap_OtherLiabilitiesNoncurrent		64,917,000us-gaap_OtherLiabilitiesNoncurrent
Dreamcatcher \| Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Guaranteed minimum annual cash flows to Dreamcatcher			200,000
Operating revenues	15,000,000	15,000,000
Operating profit	2,000,000	2,000,000
Property, plant and equipment, net	841,000		999,000
Broadcast rights	1,880,000		2,869,000
Other intangible assets, net	100,865,000		103,500,000
Other assets	235,000		124,000
Total Assets	103,821,000		107,492,000
Debt due within one year	4,034,000		4,034,000
Contracts payable for broadcast rights	2,193,000		6,552,000
Long-term debt	18,871,000		19,880,000
Other obligations	109,000		157,000
Total Liabilities	$ 25,207,000		$ 30,623,000

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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-Name Accounting Standards Codification

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Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

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Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The net result for the period of deducting operating expenses from operating revenues.

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Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).

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The net carrying amount as of the balance sheet date of other indefinite-lived and finite-lived intangible assets that are not separately presented on the statement of financial position.

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Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer).

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Amount of obligations related to rights to programming, including, but not limited to, feature films and episodic series, acquired under license agreements that will be paid within the next twelve months.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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The amount of financial or other support the reporting entity has provided (explicitly or implicitly) to the Variable Interest Entity (VIE) that it was not previously contractually required to provide or that the reporting entity intends to provide, including, for example, situations in which the reporting entity assisted the VIE in obtaining another type of support.

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