Warner Bros. Discovery (WBD) 10-K 20 Feb 14 2013 FY Annual report Financial data

Document_And_Entity_Informatio

Document And Entity Information (USD $)	12 Months Ended
In Billions, except Share data, unless otherwise specified	Dec. 31, 2013	Jun. 30, 2013	Feb. 06, 2014	Feb. 06, 2014	Feb. 06, 2014
			Series A Common Stock [Member]	Series B Convertible Common Stock [Member]	Series C Common Stock [Member]
Document Type	'10-K	'	'	'	'
Document Period End Date	31-Dec-13	'	'	'	'
Document Fiscal Year Focus	'2013	'	'	'	'
Document Fiscal Period Focus	'FY	'	'	'	'
Amendment Flag	'false	'	'	'	'
Entity Registrant Name	'Discovery Communications, Inc.	'	'	'	'
Entity Central Index Key	'0001437107	'	'	'	'
Current Fiscal Year End Date	'--12-31	'	'	'	'
Entity Filer Category	'Large Accelerated Filer	'	'	'	'
Entity Common Stock, Shares Outstanding	'	'	146,932,515	6,545,033	80,635,628
Entity Current Reporting Status	'Yes	'	'	'	'
Entity Voluntary Filers	'No	'	'	'	'
Entity Well-known Seasoned Issuer	'Yes	'	'	'	'
Entity Public Float	'	$17	'	'	'

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$408	$1,201
Receivables, net	1,371	1,130
Content rights, net	277	122
Deferred income taxes	73	74
Prepaid expenses and other current assets	281	203
Total current assets	2,410	2,730
Noncurrent content rights, net	1,883	1,555
Property and equipment, net	514	388
Goodwill	7,341	6,399
Intangible assets, net	1,565	611
Equity method investments	1,087	1,095
Other noncurrent assets	179	152
Total assets	14,979	12,930
Current liabilities:	'	'
Accounts payable	141	71
Accrued liabilities	992	721
Deferred revenues	144	123
Current portion of debt	17	31
Total current liabilities	1,294	946
Noncurrent portion of debt	6,482	5,212
Deferred income taxes	637	272
Other noncurrent liabilities	333	207
Total liabilities	8,746	6,637
Commitments and contingencies (See Note 21.)	'	'
Redeemable Noncontrolling Interests	36	0
Stockholders' Equity Attributable to Parent [Abstract]	'	'
Additional paid-in capital	6,826	6,689
Treasury stock, at cost	-3,531	-2,482
Retained earnings	2,892	2,075
Accumulated other comprehensive income	4	4
Total Discovery Communications, Inc. stockholders' equity	6,196	6,291
Noncontrolling interests	1	2
Total equity	6,197	6,293
Total liabilities and equity	14,979	12,930
Series A Convertible Preferred Stock [Member]	'	'
Stockholders' Equity Attributable to Parent [Abstract]	'	'
Convertible preferred stock	1	1
Series C Convertible Preferred Stock [Member]	'	'
Stockholders' Equity Attributable to Parent [Abstract]	'	'
Convertible preferred stock	1	1
Series A Common Stock [Member]	'	'
Stockholders' Equity Attributable to Parent [Abstract]	'	'
Common stock	1	1
Treasury stock, at cost	-171	'
Series B Convertible Common Stock [Member]	'	'
Stockholders' Equity Attributable to Parent [Abstract]	'	'
Convertible common stock	0	0
Series C Common Stock [Member]	'	'
Stockholders' Equity Attributable to Parent [Abstract]	'	'
Common stock	2	2
Treasury stock, at cost	($3,400)	'

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Stock, shares authorized	150,000,000	'
Stock, shares issued	0	0
Series A Convertible Preferred Stock [Member]	'	'
Stock, par value	0.01	0.01
Stock, shares authorized	75,000,000	75,000,000
Stock, shares issued	71,000,000	71,000,000
Series C Convertible Preferred Stock [Member]	'	'
Stock, par value	0.01	0.01
Stock, shares authorized	75,000,000	75,000,000
Stock, shares issued	44,000,000	49,000,000
Series A Common Stock [Member]	'	'
Stock, par value	0.01	0.01
Stock, shares authorized	1,700,000,000	1,700,000,000
Stock, shares issued	150,000,000	147,000,000
Series B Convertible Common Stock [Member]	'	'
Stock, par value	0.01	0.01
Stock, shares authorized	100,000,000	100,000,000
Stock, shares issued	7,000,000	7,000,000
Series C Common Stock [Member]	'	'
Stock, par value	0.01	0.01
Stock, shares authorized	2,000,000,000	2,000,000,000
Stock, shares issued	151,000,000	150,000,000

Consolidated_Statements_Of_Ope

Consolidated Statements Of Operations (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues:	'	'	'
Distribution	$2,536	$2,206	$2,070
Advertising	2,739	2,037	1,852
Other	260	244	246
Total revenues	5,535	4,487	4,168
Costs and expenses:	'	'	'
Costs of revenues, excluding depreciation and amortization	1,689	1,218	1,176
Selling, general and administrative	1,575	1,291	1,171
Depreciation and amortization	276	117	117
Restructuring and impairment charges	16	6	30
Gain on disposition	-19	0	-129
Total costs and expenses	3,537	2,632	2,365
Operating income	1,998	1,855	1,803
Interest expense	-306	-248	-208
Income (loss) from equity investees, net	18	-86	-35
Other income (expense), net	26	-3	3
Income from continuing operations before income taxes	1,736	1,518	1,563
Provision for income taxes	-659	-562	-427
Income from continuing operations, net of taxes	1,077	956	1,136
Loss from discontinued operations, net of taxes	0	-11	-3
Net income	1,077	945	1,133
Net income attributable to noncontrolling interests	-1	-2	-1
Net income attributable to redeemable noncontrolling interest	-1	0	0
Net income attributable to Discovery Communications, Inc.	$1,075	$943	$1,132
Basic earnings per share available to Discovery Communications, Inc. stockholders	'	'	'
Continuing operations	$3.01	$2.54	$2.83
Discontinued operations	$0	($0.03)	($0.01)
Net income	$3.01	$2.51	$2.82
Diluted earnings per share available to Discovery Communications, Inc. stockholders	'	'	'
Continuing operations	$2.97	$2.51	$2.80
Discontinued operations	$0	($0.03)	($0.01)
Net income	$2.97	$2.48	$2.80
Weighted average shares outstanding:	'	'	'
Basic	357	376	401
Diluted	361	380	405

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Statement of Other Comprehensive Income [Abstract]

'

'

'

'

'

'

'

'

'

'

'

Net income

$290

[1]

$256

[1]

$300

[1]

$231

[1]

$224

[1],[2]

$206

[2]

$293

[2]

$222

[2]

$1,077

$945

$1,133

Other comprehensive (loss) income, net of tax

'

'

'

'

'

'

'

'

'

'

'

Currency translation adjustments

'

'

'

'

'

'

'

'

-11

28

10

Derivative and market value adjustments

'

'

'

'

'

'

'

'

8

-1

0

Comprehensive income

'

'

'

'

'

'

'

'

1,074

972

1,143

Comprehensive income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

-1

-2

-1

Comprehensive loss attributable to redeemable noncontrolling interests

'

'

'

'

'

'

'

'

2

0

0

Comprehensive income attributable to Discovery Communications Inc.

'

'

'

'

'

'

'

'

$1,075

$970

$1,142

[1]

(b)On April 9, 2013, the Company acquired SBS Nordic. During the year ended DecemberB 31, 2012, the Company acquired Switchover Media and a television station in Dubai. The Company included the operations of each of these acquisitions in the Company's consolidated financial statements as of each of their respective acquisition dates. (See Note 3.)

[2]

(c)On September 17, 2012, the Company sold its postproduction audio business, CSS Studios, LLC, whose results of operations have been reclassified to discontinued operations for all quarterly periods presented. (See Note 3.)

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Activities	'	'	'
Net income	$1,077	$945	$1,133
Adjustments to reconcile net income to cash provided by operating activities:	'	'	'
Equity-based compensation expense	190	154	99
Depreciation and amortization	276	117	119
Content amortization and impairment expense	1,190	865	846
(Gain) loss on dispositions	-19	6	-129
Remeasurement gain on previously held equity interest	-92	0	0
Equity in (earnings) losses and distributions from investee companies	-4	106	65
Deferred income tax expense (benefit)	83	-70	40
Launch amortization expense	18	20	52
Loss from hedging instruments, net	55	0	0
Other, net	32	12	17
Changes in operating assets and liabilities:	'	'	'
Receivables, net	-120	-59	-179
Content rights	-1,426	-1,091	-884
Accounts payable and accrued liabilities	106	171	6
Equity-based compensation liabilities	-64	-45	-126
Income tax receivable	-5	-11	72
Other, net	-12	-21	-31
Cash provided by operating activities	1,285	1,099	1,100
Investing Activities	'	'	'
Purchases of property and equipment	-115	-77	-58
Business acquisitions, net of cash acquired	-1,861	-149	-26
Hedging instruments, net	-55	0	0
Proceeds from disposition	28	0	0
Distributions from equity method investees	47	17	21
Investments and advances to equity method investees, net	-28	-404	-151
Other investing activities, net	-3	-30	0
Cash used in investing activities	-1,987	-643	-214
Financing Activities	'	'	'
Borrowings from long-term debt, net of discount and issuance costs	1,186	981	639
Principal repayments of capital lease obligations	-32	-22	-20
Repurchases of common stock	-1,049	-1,380	-997
Repurchases of preferred stock	-256	0	0
Proceeds from equity-based plans, net	73	119	88
Tax settlements associated with equity-based plans	-22	-3	-1
Cash proceeds from equity-based plans, net	51	84	61
Excess tax benefits from stock-based compensation	44	38	28
Other financing activities, net	-7	-3	-7
Cash used in financing activities	-85	-305	-297
Effect of exchange rate changes on cash and cash equivalents	-6	2	-7
Net change in cash and cash equivalents	-793	153	582
Cash and cash equivalents, beginning of period	1,201	1,048	466
Cash and cash equivalents, end of period	408	1,201	1,048
Supplemental Cash Flow Information	'	'	'
Total cash paid for interest, net	-299	-244	-205
Cash paid for taxes, net	-484	-485	-288
Noncash Investing and Financing Transactions	'	'	'
Investment in OWN	0	8	273
Assets acquired under capital lease arrangements	87	25	0
Accrued purchases of property and equipment	$11	$11	$14

Consolidated_Statements_Of_Equ

Consolidated Statements Of Equity (USD $)	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	(Accumulated Deficit)/Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Discovery Communications, Inc. Stockholders' Equity [Member]	Noncontrolling Interests [Member]
In Millions, except Share data
Beginning Balance at Dec. 31, 2010	$6,233	$2	$3	$6,358	($105)	$0	($33)	$6,225	$8
Beginning Balance (in shares) at Dec. 31, 2010	'	'	287,000,000	'	'	'	'	'	'
Beginning Balance (in shares) at Dec. 31, 2010	'	128,000,000	'	'	'	'	'	'	'
Net income	1,133	0	0	0	0	1,132	0	1,132	1
Other comprehensive income	10	0	0	0	0	0	10	10	0
Repurchases of common stock	-997	0	0	0	-997	0	0	-997	0
Equity-based compensation	59	0	0	59	0	0	0	59	0
Excess tax benefits from stock-based compensation	28	0	0	28	0	0	0	28	0
Tax settlements associated with equity-based plans	-1	0	0	-1	0	0	0	-1	0
Issuance of common stock in connection with equity-based compensation plans (in shares)	'	0	4,000,000	'	'	'	'	'	'
Issuance of common stock in connection with stock-based plans	61	0	0	61	0	0	0	61	0
Redeemable noncontrolling interest adjustments to redemption value	0	'	'	'	'	'	'	'	'
Cash distributions to noncontrolling interest	-7	0	0	0	0	0	0	0	-7
Ending Balance at Dec. 31, 2011	6,519	2	3	6,505	-1,102	1,132	-23	6,517	2
Ending Balance (in shares) at Dec. 31, 2011	'	'	291,000,000	'	'	'	'	'	'
Ending Balance (in shares) at Dec. 31, 2011	0	128,000,000	'	'	'	'	'	'	'
Net income	945	0	0	0	0	943	0	943	2
Other comprehensive income	27	0	0	0	0	0	27	27	0
Repurchases of common stock	-1,380	0	0	0	-1,380	0	0	-1,380	0
Equity-based compensation	65	0	0	65	0	0	0	65	0
Excess tax benefits from stock-based compensation	38	0	0	38	0	0	0	38	0
Tax settlements associated with equity-based plans	-3	0	0	-3	0	0	0	-3	0
Issuance of common stock in connection with equity-based compensation plans (in shares)	'	0	5,000,000	'	'	'	'	'	'
Issuance of common stock in connection with stock-based plans	84	0	0	84	0	0	0	84	0
Redeemable noncontrolling interest adjustments to redemption value	0	'	'	'	'	'	'	'	'
Cash distributions to noncontrolling interest	-2	0	0	0	0	0	0	0	-2
Share Conversion	'	-8,000,000	8,000,000	'	'	'	'	'	'
Ending Balance at Dec. 31, 2012	6,293	2	3	6,689	-2,482	2,075	4	6,291	2
Ending Balance (in shares) at Dec. 31, 2012	'	'	304,000,000	'	'	'	'	'	'
Ending Balance (in shares) at Dec. 31, 2012	0	120,000,000	'	'	'	'	'	'	'
Net income	1,077	'	'	'	'	'	'	'	'
Net income, excluding portion attributable to redeemable noncontrolling interest	1,076	0	0	0	0	1,075	0	1,075	1
Other comprehensive income	-3	'	'	'	'	'	'	'	'
Repurchases of common stock	-1,049	0	0	0	-1,049	0	0	-1,049	0
Repurchases of preferred stock (in shares)	'	-4,000,000	0	'	'	'	'	'	'
Repurchases of preferred stock	-256	0	0	0	0	-256	0	-256	0
Equity-based compensation	67	0	0	67	0	0	0	67	0
Excess tax benefits from stock-based compensation	44	0	0	44	0	0	0	44	0
Tax settlements associated with equity-based plans	-22	0	0	-22	0	0	0	-22	0
Issuance of common stock in connection with equity-based compensation plans (in shares)	'	0	3,000,000	'	'	'	'	'	'
Issuance of common stock in connection with stock-based plans	51	0	0	51	0	0	0	51	0
Other adjustments for equity-based plans	-3	0	0	-3	0	0	0	-3	0
Redeemable noncontrolling interest adjustments to redemption value	-2	0	0	0	0	-2	0	-2	0
Cash distributions to noncontrolling interest	-2	0	0	0	0	0	0	0	-2
Share Conversion	'	-1,000,000	1,000,000	'	'	'	'	'	'
Ending Balance at Dec. 31, 2013	$6,197	$2	$3	$6,826	($3,531)	$2,892	$4	$6,196	$1
Ending Balance (in shares) at Dec. 31, 2013	'	'	308,000,000	'	'	'	'	'	'
Ending Balance (in shares) at Dec. 31, 2013	0	115,000,000	'	'	'	'	'	'	'

Description_Of_Business_And_Ba

Description Of Business And Basis Of Presentation	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Description Of Business And Basis Of Presentation	'
	NOTE 1. DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION
	Description of Business
	Discovery Communications, Inc. (“Discovery” or the “Company”) is a global media company that provides programming across multiple distribution platforms throughout the world, including digital distribution arrangements. The Company also has a diversified portfolio of websites and other digital media services and develops and sells curriculum-based education products and services. The Company classifies its operations in three segments: U.S. Networks, consisting principally of domestic television networks and websites; International Networks, consisting principally of international television networks and websites; and Education, consisting of educational curriculum-based product and service offerings. Financial information for Discovery’s reportable segments is discussed in Note 22.
	Basis of Presentation
	The consolidated financial statements include the accounts of Discovery and its majority-owned subsidiaries in which a controlling interest is maintained. Inter-company accounts and transactions between consolidated entities have been eliminated in consolidation.
	Reclassifications
	Beginning January 1, 2013, the Company reclassified income (loss) from equity method investees, net from other income (expense), net to a separate line on the consolidated statement of operations for all periods presented.

Summary_Of_Significant_Account

Summary Of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Summary Of Significant Accounting Policies	'
	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Accounting and Reporting Pronouncements Adopted
	Offsetting Assets and Liabilities
	In January 2011, the Financial Accounting Standards Board (“FASB”) issued guidance expanding the disclosure requirements for financial instruments that are offset in the balance sheet or subject to a master netting arrangement or similar agreement. In January 2013, the FASB issued additional guidance clarifying that the scope of the guidance applies only to derivatives, repurchase agreements and reverse purchase agreements, and securities borrowing and securities lending transactions. The adoption of the new guidance, effective January 1, 2013, did not have a material impact on the Company's consolidated financial statements. (See Note 11.)
	Comprehensive Income
	In January 2013, the FASB amended its guidance on the presentation of comprehensive income. Under the amended guidance, an entity must present information regarding reclassification adjustments from accumulated other comprehensive income in a single note or on the face of the financial statements. This is required for both annual and interim reporting. The Company retrospectively adopted the new guidance effective January 1, 2013 and elected to present reclassification adjustments from accumulated other comprehensive income in a single note. (See Note 13.)
	Accounting and Reporting Pronouncements Not Yet Adopted
	Presentation of Unrecognized Tax Benefits
	In July 2013, the FASB issued guidance stating that a liability related to an unrecognized tax benefit should be offset against a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward if such settlement is required or expected in the event the uncertain tax position is disallowed. The new guidance is effective on a prospective basis for annual and interim periods beginning after December 15, 2013, but early adoption and retrospective application are permitted. The Company is assessing the impact of this guidance on its consolidated financial statements.
	Use of Estimates
	The preparation of financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates, judgments and assumptions that affect the amounts and disclosures reported in the consolidated financial statements and accompanying notes. Management continually re-evaluates its estimates, judgments and assumptions and management’s assessments could change. Actual results may differ materially from those estimates.
	Estimates inherent in the preparation of the consolidated financial statements include accounting for asset impairments, revenue recognition, allowances for doubtful accounts, content rights, depreciation and amortization, business combinations, equity-based compensation, income taxes, other financial instruments, contingencies, and the determination of whether the Company is the primary beneficiary of entities in which it holds variable interests.
	Consolidation
	The Company has ownership and other interests in various entities, including corporations, partnerships, and limited liability companies. For each such entity, the Company evaluates its ownership and other interests to determine whether it should consolidate the entity or account for its ownership interest as an investment. As part of its evaluation, the Company initially determines whether the entity is a variable interest entity ("VIE") and, if so, whether it is the primary beneficiary of the VIE. An entity is generally a VIE if it meets any of the following criteria: (i) the entity has insufficient equity to finance its activities without additional subordinated financial support from other parties, (ii) the equity investors cannot make significant decisions about the entity’s operations, or (iii) the voting rights of some investors are not proportional to their obligations to absorb the expected losses of the entity or receive the expected returns of the entity and substantially all of the entity’s activities involve or are conducted on behalf of the investor with disproportionately few voting rights. The Company consolidates VIEs for which it is the primary beneficiary, regardless of its ownership or voting interests. The primary beneficiary is the party involved with the VIE that (i) has the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance, and (ii) has the obligation to absorb losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. The Company periodically makes judgments in determining whether entities in which it invests are VIEs. If so, the Company makes judgments to determine whether it is the primary beneficiary and is thus required to consolidate the entity.
	If it is concluded that an entity is not a VIE, then the Company considers its proportional voting interests in the entity. The Company consolidates majority-owned subsidiaries in which a controlling interest is maintained. Controlling interest is determined by majority ownership and the absence of significant third-party participating rights.
	Ownership interests in entities for which the Company has significant influence and are not consolidated under the Company’s consolidation policy are accounted for as equity method investments. Related party transactions between the Company and its equity method investees have not been eliminated. (See Note 20.)
	Investments
	The Company holds investments in equity method investees and other marketable securities. Investments in equity method investees are those for which the Company has the ability to exercise significant influence but does not control and is not the primary beneficiary. Significant influence typically exists if the Company has a 20% to 50% ownership interest in the venture unless persuasive evidence to the contrary exists. Under this method of accounting, the Company records its proportionate share of the net earnings or losses of equity method investees and a corresponding increase or decrease to the investment balances. Cash payments to equity method investees such as additional investments, loans and advances and expenses incurred on behalf of investees, as well as payments from equity method investees such as dividends, distributions and repayments of loans and advances are recorded as adjustments to investment balances. The Company evaluates its equity method investments for impairment whenever events or changes in circumstances indicate that the carrying amounts of such investments may not be recoverable. (See Asset Impairment Analysis below.)
	Investments in entities over which the Company has no control or significant influence and is not the primary beneficiary, and investments in other securities, are accounted for at fair value or cost. Investments in equity securities with readily determinable fair values are accounted for at fair value, based on quoted market prices, and classified as either trading securities or available-for-sale securities. For investments classified as trading securities, which include securities held in a separate trust in connection with the Company’s deferred compensation plan, unrealized and realized gains and losses related to the investment and corresponding liability are recorded in earnings. For investments classified as available-for-sale securities, which include investments in mutual funds, unrealized gains and losses are recorded net of income taxes in other comprehensive income (loss) until the security is sold or considered impaired. If declines in the value of available-for-sale securities are determined to be other than temporary, a loss is recorded in earnings in the current period. Impairments are determined based on, among other factors, the length of time the fair value of the investment has been less than the carrying value, future business prospects for the investee, and information regarding market and industry trends for the investee’s business, if available. For purposes of computing realized gains and losses, the Company determines cost on a specific identification basis.
	Foreign Currency
	The reporting currency of the Company is the U.S. dollar. The functional currency of most of the Company’s international subsidiaries is the local currency. Assets and liabilities, including intercompany balances for which settlement is anticipated in the foreseeable future, denominated in foreign currencies are translated at exchange rates in effect at the balance sheet date. Foreign currency equity balances are translated at historical rates. Revenues and expenses denominated in foreign currencies are translated at average exchange rates for the respective periods. Foreign currency translation adjustments are recorded in accumulated other comprehensive income.
	Transactions denominated in currencies other than subsidiaries’ functional currencies are recorded based on exchange rates at the time such transactions arise. Changes in exchange rates with respect to amounts recorded in the consolidated balance sheets related to these items will result in unrealized foreign currency transaction gains and losses based upon period-end exchange rates. The Company also records realized foreign currency transaction gains and losses upon settlement of the transactions. Foreign currency transaction gains and losses are included in operating income and totaled a gain of $24 million, a loss of $4 million, and a loss of $12 million for 2013, 2012 and 2011, respectively.
	With the exception of certain material transactions, the cash flows from the Company's operations in foreign countries are translated at the weighted average rate for the applicable period in the consolidated statements of cash flows. The impacts of material transactions generally are recorded at the applicable spot rates in the consolidated statements of operations and cash flows. The effects of exchange rates on cash balances held in foreign currencies are separately reported in the Company's consolidated statements of cash flows.
	Discontinued Operations
	In determining whether a group of assets disposed of should be presented as a discontinued operation, the Company initially makes a determination as to whether the group of assets comprises a component of the entity, which requires clearly distinguishable cash flows from the rest of the entity. The Company also determines whether the cash flows associated with the component have been or will be significantly eliminated from the ongoing operations of the Company and whether the Company will have significant continuing involvement in the component's operations. If the discontinued operations criteria have been achieved, the results of operations of the component being disposed of, as well as any gain or loss on the disposal transaction, are aggregated for presentation apart from continuing operating results of the Company in the consolidated financial statements.
	Cash and Cash Equivalents
	Cash and cash equivalents include cash on hand and highly liquid investments with original maturities of ninety days or less.
	Accounts Receivable
	Accounts receivable include amounts billed and currently due from customers and are presented net of an estimate for uncollectible accounts. The Company evaluates outstanding receivables to assess collectibility. In performing this evaluation, the Company analyzes market trends, economic conditions, the aging of receivables and customer specific risks. Using this information, the Company reserves an amount that it estimates may not be collected. The Company does not require collateral with respect to trade receivables.
	Content Rights
	Content rights principally consist of television series and specials. Content aired on the Company’s television networks is sourced from wholly-owned production companies and a wide range of third-party producers and is classified either as produced, coproduced or licensed. Substantially all produced content includes programming for which the Company has engaged third parties to develop and produce, and it owns most or all rights. The Company collaborates with third parties to finance and develop coproduced content and it retains significant rights to exploit the programs. Licensed content is comprised of films or series that have been previously produced by third parties and the Company retains limited airing rights over a contractual term. Capitalized content costs are stated at the lower of cost less accumulated amortization or net realizable value.
	Costs of produced and coproduced content consist of development costs, acquired production costs, direct production costs, certain production overhead costs and participation costs. Costs incurred for produced and coproduced content are capitalized if the Company has previously generated revenues from similar content in established markets and the content will be used and revenues will be generated for a period of at least one year. The Company’s coproduction arrangements generally provide for the sharing of production cost. The Company records its costs, but does not record the costs borne by the other party as the Company does not share any associated economics of exploitation. Program licenses typically have fixed terms and require payments during the term of the license. The cost of licensed content is capitalized when the programs are delivered or the Company has paid for the programs. The Company pays in advance for television series, specials, films and sports rights. Development costs for programs that the Company has determined will not be produced are written off. Additionally, distribution, advertising, marketing, general and administrative costs are expensed as incurred.
	Amortization of content rights is recognized based on the proportion that current estimated revenues bear to the estimated remaining total lifetime revenues, which results in either an accelerated method or a straight-line method over the estimated useful lives of up to five years. Amortization of capitalized costs for produced and coproduced content begins when a program has been aired. Amortization of capitalized costs for licensed content commences when the license period begins and the program is available for use or in the case of sporting events, when the event has aired.
	The Company periodically evaluates the net realizable value of content by considering expected future revenue generation. Estimates of future revenues consider historical airing patterns and future plans for airing content, including any changes in strategy. Estimated future revenues may differ from actual revenues based on changes in expectations related to market acceptance, network affiliate fee rates, advertising demand, the number of cable and satellite television subscribers receiving the Company’s networks, and program usage. Accordingly, the Company continually reviews revenue estimates and planned usage and revises its assumptions if necessary. Given the significant estimates and judgments involved, actual demand or market conditions may be less favorable than those projected, requiring a write-down to net realizable value. All produced and coproduced content is classified as long-term. The portion of the unamortized licensed content balance that will be amortized within one year is classified as a current asset.
	Property and Equipment
	Property and equipment are stated at cost less accumulated depreciation and impairments. The cost of property and equipment acquired under capital lease arrangements represents the lesser of the present value of the minimum lease payments or the fair value of the leased asset as of the inception of the lease. Substantially all capitalized software costs are for internal use. Capitalization of software costs occurs during the application development stage. Software costs incurred during the preliminary project and post implementation stages are expensed as incurred. Repairs and maintenance expenditures that do not enhance the use or extend the life of property and equipment are expensed as incurred.
	Depreciation for most property and equipment is recognized using the straight-line method over the estimated useful lives of the assets, which is 15 to 39 years for buildings, three to five years for broadcast equipment, two to five years for capitalized software costs and three to five years for office equipment, furniture, fixtures and other property and equipment. Assets acquired under capital lease arrangements and leasehold improvements are amortized using the straight-line method over the lesser of the estimated useful lives of the assets or the terms of the related leases, which is one to 15 years. Depreciation commences when property or equipment is ready for its intended use.
	Asset Impairment Analysis
	Goodwill and Indefinite-lived Intangible Assets
	Goodwill is allocated to the Company's reporting units, which are its operating segments or one level below its operating segments. The Company evaluates goodwill and other indefinite-lived intangible assets for impairment annually as of November 30 and earlier upon the occurrence of substantive changes in circumstances such as a significant deterioration in economic conditions, industry changes, increases in costs, declining cash flows, or a decline in market capitalization. If the Company believes that as a result of its qualitative assessment it is more likely than not that the fair value of a reporting unit or other indefinite-lived intangible asset is greater than its carrying amount, the quantitative impairment test is not required.
	Following a qualitative assessment indicating that it is not more likely than not that the fair value of the reporting unit exceeds its carrying amount, goodwill impairment is determined using a two-step quantitative process. The first step of the process is to compare the fair value of a reporting unit with its carrying amount, including goodwill. In performing the first step, the Company determines the fair value of a reporting unit by using a combination of a discounted cash flow (“DCF”) analysis and, if possible, market-based valuation methodologies. Determining fair value requires the Company to make judgments about appropriate discount rates, perpetual growth rates, relevant comparable company earnings multiples and the amount and timing of expected future cash flows. The cash flows employed in the DCF analysis are based on the Company’s budget, long-term business plan, and recent operating performance. Discount rate assumptions are based on an assessment of the risk inherent in future cash flows of the respective reporting unit and market conditions. In assessing the reasonableness of its determined fair values, the Company may also evaluate its results against other value indicators such as comparable company public trading values, research analyst estimates and values observed in market transactions.
	If the fair value of a reporting unit exceeds its carrying amount, goodwill of the reporting unit is not impaired and the second step of the quantitative impairment test is not necessary. If the carrying amount of a reporting unit exceeds its fair value, the second step of the quantitative goodwill impairment test is required to be performed to measure the amount of impairment loss, if any. The second step of the quantitative goodwill impairment test compares the implied fair value of the reporting unit’s goodwill with the carrying amount of that goodwill. The implied fair value of goodwill is determined in the same manner as the amount of goodwill recognized in a business combination. In other words, the estimated fair value of the reporting unit’s identifiable net assets excluding goodwill is compared to the fair value of the reporting unit as if the reporting unit had been acquired in a business combination and the fair value of the reporting unit was the purchase price paid. If the carrying amount of the reporting unit’s goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess.
	Following a qualitative assessment indicating that it is not more likely than not that the fair value of the indefinite lived intangible asset exceeds its carrying amount, impairment of other intangible assets not subject to amortization involves a comparison of the estimated fair value of the intangible asset with its carrying value. If the carrying value of the intangible asset exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. The estimates of fair value of intangible assets not subject to amortization are determined using a DCF valuation analysis, a market-based valuation analysis, or both. Determining fair value requires the exercise of judgments about appropriate discount rates, perpetual growth rates, relevant comparable company earnings multiples, when available, and the amount and timing of expected future cash flows.
	Long-lived Assets
	Long-lived assets such as amortizing trademarks, customer lists, other intangible assets, and property and equipment are not required to be tested for impairment annually. Instead, long-lived assets are tested for impairment whenever circumstances indicate that the carrying amount of the asset may not be recoverable, such as when the disposal of such assets is likely or there is an adverse change in the market involving the business employing the related assets. If an impairment analysis is required, the impairment test employed is based on whether the Company’s intent is to hold the asset for continued use or to hold the asset for sale. If the intent is to hold the asset for continued use, the impairment test first requires a comparison of undiscounted future cash flows to the carrying value of the asset. If the carrying value of the asset exceeds the undiscounted cash flows, the asset would not be deemed to be recoverable. Impairment would then be measured as the excess of the asset’s carrying value over its fair value. Fair value is typically determined by discounting the future cash flows associated with that asset. If the intent is to hold the asset for sale and certain other criteria are met, the impairment test involves comparing the asset’s carrying value to its fair value less costs to sell. To the extent the carrying value is greater than the asset’s fair value less costs to sell, an impairment loss is recognized in an amount equal to the difference. Significant judgments used for long-lived asset impairment assessments include determining whether events or circumstances indicate that the carrying amount of the asset may not be recoverable, determining the future cash flows for the assets involved and determining the proper discount rate to be applied in determining fair value.
	Equity Method Investments
	Equity method investments are reviewed for impairment on a quarterly basis. An equity method investment is written down to fair value if there is evidence of a loss in value which is other than temporary. The Company may estimate the fair value of its equity method investments by considering recent investee equity transactions, discounted cash flow analysis, recent operating results, comparable public company operating cash flow multiples and in certain situations, balance sheet liquidation values. If the fair value of the investment has dropped below the carrying amount, management considers several factors when determining whether an other-than-temporary decline has occurred, such as: the length of the time and the extent to which the estimated fair value or market value has been below the carrying value, the financial condition and the near-term prospects of the investee, the intent and ability of the Company to retain its investment in the investee for a period of time sufficient to allow for any anticipated recovery in market value and general market conditions. The estimation of fair value and whether an other-than temporary impairment has occurred requires the application of significant judgment and future results may vary from current assumptions. (See Note 4.)
	Derivative Instruments
	The Company uses derivative financial instruments from time to time to modify its exposure to market risks from changes in interest rates and foreign exchange rates. The Company may designate derivative instruments as cash flow hedges or fair value hedges, as appropriate. The Company records all derivative instruments at fair value on a gross basis. For those derivative instruments designated as cash flow hedges that qualify for hedge accounting, gains or losses on the effective portion of derivative instruments are initially recorded in accumulated other comprehensive income on the consolidated balance sheets and reclassified to the same account on the consolidated statements of operations in which the hedged item is recognized. The Company may also enter into derivative instruments that are not designated as hedges and do not qualify for hedge accounting. These contracts are intended to mitigate economic exposures of the Company. The changes in fair value of derivatives not designated as hedges and the ineffective portion of derivatives designated as hedging instruments are immediately recorded in other income (expense), net.
	Treasury Stock
	When stock is acquired for purposes other than formal or constructive retirement, the purchase price of the acquired stock is recorded in a separate treasury stock account which is separately reported as a reduction of equity.
	When stock is retired or purchased for constructive retirement, the purchase price is initially recorded as a reduction to the par value of the shares repurchased, with any excess purchase price over par value recorded as a reduction to additional paid-in capital related to the series of shares repurchased and any remainder excess purchase price recorded as a reduction to retained earnings. If the purchase price exceeds the amounts allocated to par value and additional paid-in capital related to the series of shares repurchased and retained earnings, the remainder is allocated to additional paid-in capital related to other series of shares.
	Revenue Recognition
	The Company generates revenues principally from (i) fees charged to distributors of its network content, which include cable, direct-to-home ("DTH") satellite, telecommunications and digital service providers, (ii) advertising sold on its television networks and websites, and (iii) transactions for curriculum-based products and services, affiliate and advertising sales representation services and the licensing of its brands for consumer products.
	Revenue is recognized when persuasive evidence of a sales arrangement exists, services are rendered or delivery occurs, the sales price is fixed or determinable and collectability is reasonably assured. Revenues do not include taxes collected from customers on behalf of taxing authorities such as sales tax and value-added tax. However, certain revenues include taxes that customers pay to taxing authorities on the Company’s behalf, such as foreign withholding tax. Revenue recognition for each source of revenue is also based on the following policies.
	Distribution
	Cable operators, DTH satellite and telecommunications service providers typically pay a per-subscriber fee for the right to distribute the Company’s programming under the terms of distribution contracts. The majority of the Company’s distribution fees are collected monthly throughout the year. Distribution revenues from cable operators and DTH service providers are recognized over the term of the contracts based on contracted programming rates and reported subscriber levels. The amount of distribution fees due to the Company are reported by distributors based on actual subscriber levels. Such information is generally not received until after the close of the reporting period. In these cases, the Company estimates the number of subscribers receiving the Company’s programming. Historical adjustments to recorded estimates have not been material.
	Distribution revenues are recognized net of incentives the Company provides to operators in exchange for carrying its networks. Incentives typically include cash payments to operators (“launch incentives”), providing the channel to the distributor for free for a predetermined length of time, or both. Launch incentives are capitalized as assets upon launch of the Company’s network by the operator and are amortized on a straight-line basis as a reduction of revenue over the term of the contract, including free periods. In instances where the distribution agreement is extended prior to the expiration of the original term, the Company evaluates the economics of the extended term and, if it is determined that the launch asset continues to benefit the Company over the extended term, then the Company will adjust the amortization period of the remaining launch incentives accordingly. Other incentives are recognized as a reduction of revenue as incurred. Amortization of launch incentives was $18 million, $20 million and $52 million for 2013, 2012 and 2011, respectively.
	Revenues associated with digital distribution arrangements are recognized when the Company transfers control of the content and the rights to distribute the content to the customer. If multiple programs are included in the arrangement, the Company allocates the fee to each program based on its relative fair value.
	Advertising
	Advertising revenues are principally generated from the sale of bundled commercial time on television networks and websites. Advertising revenues are recognized net of agency commissions in the period advertising spots are aired. A substantial portion of the advertising contracts in the U.S. guarantee the advertiser a minimum audience level that either the program in which their advertisements are aired or the advertisement will reach. Revenues are recognized for the actual audience level delivered. The Company provides the advertiser with additional advertising spots in future periods if the guaranteed audience level is not delivered. Revenues are deferred for any shortfall in the guaranteed audience level until the guaranteed audience level is delivered or the rights associated with the guarantee lapse. Audience guarantees are initially developed internally based on planned programming, historical audience levels, the success of pilot programs, and market trends. In the U.S., actual audience and delivery information is published by independent ratings services. In certain instances, the independent ratings information is not received until after the close of the reporting period. In these cases, reported advertising revenue and related deferred revenue are based upon the Company’s estimates of the audience level delivered. Historical adjustments to recorded estimates have not been material.
	Advertising revenues from online properties are recognized as impressions are delivered or the services are performed.
	Other
Revenues for curriculum-based services are recognized ratably over the contract term. Royalties from brand licensing arrangements are earned as products are sold by the licensee.
Deferred Revenues
Deferred revenues primarily consist of cash received for television advertising for which the advertising spots have not yet aired and advanced billings to subscribers for access to the Company’s curriculum-based streaming services. The amounts classified as current are expected to be earned within the next year.
Equity-Based Compensation Expense
The Company has incentive plans under which unit awards, stock appreciation rights (“SARs”), stock options, performance based restricted stock units (“PRSUs”) and service based restricted stock units (“RSUs”) are issued.
The Company measures the cost of employee services received in exchange for unit awards and SARs based on the fair value of the award less estimated forfeitures. Because unit awards and SARs are cash-settled, the Company remeasures the fair value of these awards each reporting period until settlement. Compensation expense, including changes in fair value, for unit awards and SARs is recognized during the vesting period in proportion to the requisite service that has been rendered as of the reporting date. For grants of unit awards with graded vesting, the Company measures fair value separately for each vesting tranche and records compensation expense for all vesting tranches of each award. For grants of SARs with graded vesting, the Company measures fair value and records compensation expense separately for each vesting tranche.
Compensation expense for stock options is measured based on the fair value on the date of grant less estimated forfeitures. Compensation expense for stock options is recognized ratably during the vesting period.
The fair values of unit awards, SARs and stock options are estimated using the Black-Scholes option-pricing model. Because the Black-Scholes option-pricing model requires the use of subjective assumptions, changes in these assumptions can materially affect the fair value of awards. For unit awards, the expected term is the period from the grant date to the vesting date of the award, and for SARs the expected term is the period from the grant date to the end of the contractual term of the award unless the terms of the award allow for cash-settlement automatically on the date the awards vest, in which case the vesting date is used. For stock options, the expected term is estimated to be the period from the date of grant through the mid-point between the vesting date and the end of the contractual term of the award. Expected volatility is based on a combination of implied volatilities from traded options on the Company’s common stock and historical realized volatility of the Company’s common stock. The dividend yield is assumed to be zero because the Company has no present intention to pay dividends. The risk-free interest rate is based on U.S. Treasury zero-coupon issues with a remaining term equal to the expected term of the award.
Vesting for certain PRSUs is subject to satisfying objective operating performance conditions, while vesting for other PRSUs is based on the achievement of a combination of objective and subjective operating performance conditions. Compensation expense for PRSUs that vest based on achieving objective operating performance conditions is measured based on the fair value of the Company’s Series A common stock on the date of grant less estimated forfeitures. Compensation expense for PRSUs that vest based on achieving subjective operating performance conditions is remeasured at fair value of the Company’s Series A common stock less estimated forfeitures each reporting period until the date of vesting. Compensation expense for all PRSUs is recognized ratably during the vesting period only when it is probable that the operating performance conditions will be achieved. The Company records a cumulative adjustment to compensation expense for PRSUs if there is a change in the determination of whether or not it is probable the operating performance conditions will be achieved.
The Company measures the cost of employee services received in exchange for RSUs based on the fair value of the Company’s Series A common stock on the date of grant less estimated forfeitures. Compensation expense for RSUs is recognized ratably during the vesting period.
When recording compensation cost for equity-based awards, the Company is required to estimate the number of awards granted that are expected to be forfeited. In estimating forfeitures, the Company considers historical and expected forfeiture rates and anticipated events. On an ongoing basis, the Company adjusts compensation expense based on actual forfeitures and revises the forfeiture rate as necessary.
On May 17, 2011, the Company’s stockholders approved the Discovery Communications, Inc. 2011 Employee Stock Purchase Plan (the “DESPP”), which enables eligible employees to purchase shares of the Company’s common stock through payroll deductions or other permitted means. The Company recognizes the fair value of the discount associated with shares purchased under the plan as equity-based compensation expense.
Equity-based compensation expense is recorded as a component of selling, general and administrative expense. The Company classifies the intrinsic value of unit awards and SARs that are vested or will become vested within one year as a current liability.
Excess tax benefits realized from the exercise of stock options and vested RSUs, PRSUs and the DESPP are reported as cash inflows from financing activities rather than as a reduction of taxes paid in cash flows from operating activities on the consolidated statements of cash flows.
Advertising Costs
Advertising costs are expensed as incurred. Advertising costs paid to third parties totaled $156 million, $124 million and $132 million for 2013, 2012 and 2011, respectively.
Income Taxes
Income taxes are recorded using the asset and liability method of accounting for income taxes. Deferred income taxes reflect the net tax effect of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Deferred taxes are measured using rates the Company expects to apply to taxable income in years in which those temporary differences are expected to reverse. A valuation allowance is provided for deferred tax assets if it is more likely than not such assets will be unrealized.
From time to time, the Company engages in transactions in which the tax consequences may be uncertain. Significant judgment is required in assessing and estimating the tax consequences of these transactions. The Company prepares and files tax returns based on its interpretation of tax laws and regulations. In the normal course of business, the Company's tax returns are subject to examination by various taxing authorities. Such examinations may result in future tax and interest assessments by these taxing authorities.
In determining the Company's tax provision for financial reporting purposes, the Company establishes a reserve for uncertain tax positions unless the Company determines that such positions are more likely than not to be sustained upon examination based on their technical merits, including the resolution of any appeals or litigations processes. There is considerable judgment involved in determining whether positions taken on the Company's tax returns are more likely than not to be sustained. The Company adjusts its tax reserve estimates periodically because of ongoing examinations by, and settlements with, various taxing authorities, as well as changes in tax laws, regulations and interpretations.
Concentrations Risk
Customers
The Company has long-term contracts with distributors around the world, including the largest operators in the U.S. and major international distributors. In the U.S., approximately 90% of distribution revenues come from the top 10 distributors. Outside of the U.S., approximately 50% of distribution revenue comes from the top 10 distributors. Agreements in place with the major cable and satellite operators in the U.S. expire at various times beginning in 2014 through 2020. Failure to secure a renewal or a renewal on less favorable terms may have a material adverse effect on the Company’s financial condition and results of operations. Not only could the Company experience a reduction in affiliate revenue, but it could also experience a reduction in advertising revenue which is impacted by affiliate subscriber levels and viewership.
No individual customer accounted for more than 10% of total consolidated revenues for 2013, 2012 and 2011. The Company’s trade receivables do not represent a significant concentration of credit risk as of December 31, 2013 or 2012 due to the wide variety of customers and markets in which the Company operates and their dispersion across many geographic areas.
Financial Institutions
Cash and cash equivalents are maintained with several financial institutions. The Company has deposits held with banks that exceed the amount of insurance provided on such deposits. Generally, these deposits may be redeemed upon demand and are maintained with financial institutions of reputable credit and, therefore, bear minimal credit risk.
Lender Counterparties
There is a risk that the counterparties associated with the Company’s revolving credit facility will not be available to fund as obligated under the terms of the facility. If funding under the revolving credit facility is unavailable, the Company may have to acquire a replacement credit facility from a different counterparty at a higher cost or may be unable to find a suitable replacement. Typically, the Company seeks to manage these exposures by contracting with experienced large financial institutions and monitoring the credit quality of its lenders. As of December 31, 2013, the Company did not anticipate nonperformance by any of its counterparties.

Acquisitions_And_Dispositions

Acquisitions And Dispositions	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Acquisitions And Dispositions	'
	ACQUISITIONS AND DISPOSITIONS
	Acquisitions
	SBS Nordic
	On April 9, 2013, the Company acquired the general entertainment television and radio business operations ("SBS Nordic") of Prosiebensat.1 Media AG for cash of approximately €1.4 billion ($1.8 billion) including closing purchase price adjustments. SBS Nordic has operations in Sweden, Norway, Denmark, Finland and England. The acquisition of SBS Nordic supports the Company’s strategic priority of increasing its presence in key international markets and is a component of the Company's International Networks segment.
	The Company used DCF analyses, which represent Level 3 fair value measurements, to assess the components of its purchase price allocation. The table below presents the fair value allocation of the purchase price to the assets and liabilities acquired (in millions).
		9-Apr-13
	Goodwill	$	779
	Intangible assets	1,001
	Content	248
	Other assets acquired	212
	Cash	106
	Liabilities assumed	(278		)
	Deferred tax liabilities	(243		)
	Redeemable noncontrolling interest	(6		)
	Net assets acquired	$	1,819
	The goodwill reflects the workforce, operating synergies and increased Nordic region market penetration expected from combining the operations of SBS Nordic and the Company. The goodwill recorded as part of this acquisition is not amortizable for tax purposes. Intangible assets primarily consist of broadcast licenses, distribution and advertising customer relationships, advertiser backlog and trademarks with a weighted average estimated useful life of 8 years.
	Discovery Japan
	On January 10, 2013, the Company purchased an additional 30% of Discovery Japan for $53 million. Discovery Japan operates Discovery Channel and Animal Planet in Japan. As of December 31, 2012, Discovery and Jupiter Telecommunications Co., Ltd ("J:COM") each owned a 50% interest in Discovery Japan, and Discovery accounted for its 50% interest using the equity method of accounting. Discovery consolidated Discovery Japan on January 10, 2013 and recognized a gain of $92 million to account for the difference between the carrying value and the fair value of the previously held 50% equity interest. The gain is included in other income (expense), net in the Company's consolidated statements of operations. (See Note 19.) The Company used a combination of a DCF analysis and market-based valuation methodology, both of which represent Level 3 fair value measurements, to measure the fair value of Discovery Japan and to perform its purchase price allocation.
	The table below presents the fair value allocation of the purchase price to the assets and liabilities acquired (in millions).
		10-Jan-13
	Goodwill	$	103
	Intangible assets	100
	Other assets acquired	25
	Currency translation adjustment	6
	Cash	4
	Remeasurement gain on previously held equity interest	(92		)
	Liabilities assumed	(55		)
	Redeemable noncontrolling interest	(35		)
	Carrying value of previously held equity interest	(3		)
	Net assets acquired	$	53
	The terms of the agreement provide J:COM with a right to put its 20% noncontrolling interest to Discovery for cash at any time and Discovery with the right to call J:COM's 20% noncontrolling interest beginning January 2018. As J:COM's put right is outside the control of the Company, J:COM's 20% noncontrolling interest is presented as redeemable noncontrolling interest outside of stockholders' equity on the Company's consolidated balance sheet. (See Note 12.)
	The goodwill reflects the operating synergies and increased regional flexibility expected from controlling the operations of Discovery Japan and is included in the International Networks segment. The goodwill recorded as part of this acquisition is not amortizable for tax purposes. Intangible assets are primarily distribution customer relationships.
	Other
	In 2013 the Company acquired several other unrelated businesses for total consideration of $88 million, net of cash acquired. The Company recorded $67 million and $24 million of goodwill and intangible assets, respectively, in connection with these acquisitions. The acquisitions included a television station in Sweden and an education business in the U.K. The goodwill reflects the synergies and market expansion expected from combining the operations of these acquisitions with the Company.
	In 2012 the Company acquired businesses for total consideration of $173 million, net of cash acquired, including $15 million paid during the year ended December 31, 2013, and contingent consideration up to $9 million if certain performance targets are achieved by 2014. The Company recorded $108 million and $70 million of goodwill and intangible assets, respectively, in connection with these acquisitions. The acquisitions included Switchover Media, a group of five Italian television channels with children's and entertainment programming, a digital media company in the U.S., a television station in Dubai, and certain affiliate agreements in Latin America.
	In 2011 the Company acquired businesses for total consideration of $26 million, net of cash acquired. The Company recorded $14 million of goodwill in connection with these acquisitions. The acquisitions included a non-fiction entertainment production company in the U.K. and a Latin American cable channel to increase distribution of TLC content.
	Pro Forma Financial Information
	The following table (in millions) presents the unaudited pro forma results of the Company as though all of the business combinations discussed above had been made on January 1, 2012. These pro forma results do not necessarily represent what would have occurred if all the business combinations had taken place on January 1, 2012, nor do they represent the results that may occur in the future. These pro forma amounts include historical financial statement amounts with the following adjustments: the Company converted historical financial statements to GAAP and applied the Company's accounting policies; the Company adjusted for amortization expense assuming the fair value adjustments to intangible assets had been applied beginning January 1, 2012; the Company removed the gain of $92 million recognized upon the consolidation of Discovery Japan and losses of $56 million for derivative instruments associated with the purchase of SBS Nordic from 2013 and reclassified them to 2012; the Company adjusted transaction costs of $3 million incurred in 2013 and reclassified them to 2012; and lastly, the Company included adjustments for income taxes associated with these pro forma adjustments. The pro forma adjustments were based on available information and upon assumptions that the Company believes are reasonable to reflect the impact of these acquisitions on the Company's historical financial information on a supplemental pro forma basis.
		Pro forma
		Year Ended December 31,
		2013			2012
	Revenues	$	5,755		$	5,315
	Income from continuing operations, net of taxes	$	1,080		$	992
	Consolidation of Business Combinations
	The operations of each of the business combinations discussed above were included in the consolidated financial statements as of each of their respective acquisition dates. The following table presents the revenue and earnings of the business combinations as reported within the consolidated financial statements for the year ended December 31, 2013 (in millions). Amounts during the prior years are immaterial.
		Year Ended December 31, 2013
	Revenue	$	666
	Income from continuing operations, net of income taxes	$	—
	Eurosport
	On January 21, 2014, the Company entered into an agreement with TF1 to acquire a controlling interest in Eurosport International ("Eurosport"), a leading pan-European sports media platform, by increasing Discovery’s ownership stake from 20% to 51% for cash of approximately €253 million ($343 million) subject to working capital adjustments. Due to regulatory constraints the acquisition initially excludes Eurosport France, a subsidiary of Eurosport. The Company will retain a 20% equity interest in Eurosport France and a commitment to acquire another 31% ownership interest beginning 2015, contingent upon resolution of all regulatory matters. The flagship Eurosport network focuses on regionally popular sports such as tennis, skiing, cycling and motor sports. Eurosport’s brands and platforms also include Eurosport HD (high definition simulcast), Eurosport 2, Eurosport 2 HD (high definition simulcast), Eurosport Asia-Pacific, and Eurosportnews. The acquisition is intended to increase the growth of Eurosport and enhance the Company's pay television offerings in Europe. TF1 will have the right to put the entirety of its remaining 49% non-controlling interest to the Company for approximately two and a half years after completion of this acquisition. The put has a floor value equal to the fair value at the acquisition date if exercised during a 90 day period beginning July 1, 2015, and is subsequently priced at fair value if exercised during a 90 day period beginning on July 1, 2016. We expect the acquisition to close in the second quarter of 2014 subject to obtaining necessary regulatory approvals.
	Dispositions
	Petfinder
	On July 15, 2013, the Company sold the domain name and business operations of the Petfinder.com website ("Petfinder"). The sale of Petfinder resulted in a $19 million pretax gain which has been reflected in gain on disposition in the consolidated statements of operations.
	Postproduction Audio Business
	On September 17, 2012, the Company sold its postproduction audio business, CSS Studios, LLC. The results of which have been reflected in loss from discontinued operations, net of taxes, in the consolidated statements of operations. The postproduction audio business was an operating segment combined with Education as a reportable segment.
	Discovery Health Network
	On January 1, 2011, the Company contributed the domestic Discovery Health network to OWN LLC in connection with the launch of OWN, which resulted in a pretax gain of $129 million. (See Note 4.) As the Company continues to be involved in the operations of the Discovery Health network through its ownership interests in OWN LLC, the Company has not presented the financial position, results of operations, and cash flows of the Discovery Health network as discontinued operations.

Variable_Interest_Entities

Variable Interest Entities	12 Months Ended
	Dec. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]	'
Variable Interest Entities	'
	VARIABLE INTEREST ENTITIES
	In the normal course of business, the Company makes investments that support its underlying business strategy and enable it to enter new markets and develop programming. In certain instances, an investment may qualify as a VIE. (See Note 2.) As of December 31, 2013 and 2012, the Company’s VIEs primarily consisted of Hub Television Networks LLC and OWN LLC, which operate pay television networks in the U.S.
	The Company accounted for its interests in VIEs using the equity method, as the Company is not the primary beneficiary. The aggregate carrying values of these equity method investments were $789 million and $825 million as of December 31, 2013 and 2012, respectively. The Company recognized its portion of net income and losses generated by VIEs of $10 million in income and $92 million and $33 million in losses for 2013, 2012 and 2011, respectively, in income (loss) from equity investees, net on the consolidated statements of operations.
	As of December 31, 2013, the Company’s estimated risk of loss for investment carrying values, unfunded contractual commitments and guarantees made on behalf of VIEs was approximately $833 million. The estimated risk of loss excludes the Company’s non-contractual future funding of OWN and its operating performance guarantee for Hub Television Networks LLC, which are discussed below.
	Hub Television Networks LLC
	Hub Television Networks LLC operates The Hub Network, which is a pay television network that provides children’s and family entertainment and educational programming. The Company is obligated to provide The Hub Network with funding up to $15 million; the Company has not provided funding as of December 31, 2013. The Company also provides services such as distribution, sales and administrative support for a fee. (See Note 20.)
	Based upon the level of equity investment at risk, The Hub Network is a VIE. Discovery and its partner, Hasbro Inc. (“Hasbro”), share equally in voting control and jointly consent to decisions about programming and marketing strategy and thereby direct the activities of The Hub Network that most significantly impact its economic performance. Neither has special governance rights, and both are equally represented on the board of The Hub Network. The partners also share equally in the profits, losses and funding of The Hub Network. The Company has determined that it is not the primary beneficiary of The Hub Network. Accordingly, the Company accounts for its investment in The Hub Network using the equity method.
	Through December 31, 2015, the Company has guaranteed the performance of The Hub Network and is required to compensate Hasbro to the extent that distribution metrics decline versus levels historically achieved by the Discovery Kids channel. This guarantee extends on a declining basis through the period of guarantee. Upon inception of The Hub Network on May 22, 2009, the maximum amount potentially due under this guarantee was $300 million. As of December 31, 2013, the maximum amount potentially due under this guarantee was less than $55 million. The maximum exposure to loss is expected to decline to zero during 2014. As The Hub Network’s distribution is obtained under long-term contracts with stable subscriber levels, the Company believes the likelihood is remote that the guaranteed performance levels will not be achieved and, therefore, believes the performance guarantee is unlikely to have an adverse impact on the Company.
	The carrying value of the Company’s investment in The Hub Network was $312 million and $322 million as of December 31, 2013 and 2012, respectively. The value of the investment may decline if future results vary negatively from the current long range plan. The Company continues to monitor the valuation of its investment in accordance with GAAP, which requires an impairment charge when there is an other-than-temporary decline in the investment’s value. No impairment was recorded in 2013.
	OWN LLC
	OWN LLC operates OWN, which is a pay television network and website that provides adult lifestyle content focused on self-discovery, self-improvement and entertainment. Based on the level of equity investment at risk, OWN is a VIE. While the Company and Harpo, Inc. ("Harpo") are partners who share equally in voting control, power is not shared because Harpo holds operational rights related to programming and marketing, as well as selection and retention of key management personnel that significantly impact OWN’s economic performance. Accordingly, the Company has determined that it is not the primary beneficiary of OWN and accounts for its investment in OWN using the equity method.
	In connection with the launch of OWN on January 1, 2011, the Company contributed the domestic Discovery Health network to the venture. The contribution did not impact the Company’s ownership interest, voting control or governance rights related to OWN. Subsequent to the contribution, the Company no longer consolidates the domestic Discovery Health network, which was a component of its U.S. Networks segment. However, the Company provides OWN funding, content licenses and services such as distribution, sales and administrative support for a fee. (See Note 20.)
	The Company recorded the contribution at fair value, which resulted in a pretax gain of $129 million and tax expense of $27 million. The fair value of the Company’s retained equity interest in OWN was estimated to be $273 million. The gain represents the fair value of the equity investment retained less the carrying values of contributed assets, which included goodwill and other identifiable assets with carrying values of $136 million and $8 million, respectively. The fair value of the contribution of the Discovery Health network to OWN was determined utilizing customary valuation methodologies including discounted cash flow valuation models. The underlying assumptions, such as future cash flows, weighted average costs of capital and long-term growth rates were generally not observable in the marketplace and therefore involved significant judgment.
	The Company’s combined advances to and note receivable from OWN, including accrued interest, were $483 million and $482 million as of December 31, 2013 and 2012, respectively. During 2013, the Company received net payments of $34 million from OWN and accrued interest earned on the note receivable of $35 million. During 2012, the Company provided OWN with funding of $136 million and accrued interest on the note receivable of $29 million. The note receivable is secured by the net assets of OWN. While the Company has no further funding commitments, the Company may provide additional funding to OWN, if necessary, and expects to recoup amounts funded. The funding to OWN accrues interest at 7.5% compounded annually. There can be no event of default on the borrowing until 2023. However, borrowings are scheduled for repayment four years after the borrowing date to the extent that OWN has excess cash to repay the borrowings then due. Following such repayment, OWN’s subsequent cash distributions will be shared equally between the Company and Harpo. OWN began repaying amounts owed to the Company during 2013.
	In accordance with the venture agreement, losses generated by OWN are generally allocated to both investors based on their proportionate ownership interests. However, the Company has recorded its portion of OWN’s losses based upon accounting policies for equity method investments. Prior to the contribution of the Discovery Health network to OWN at its launch, the Company recognized $104 million or 100% of OWN’s net losses. During the three months ended March 31, 2012, accumulated operating losses at OWN exceeded the equity contributed to OWN, and Discovery resumed recording 100% of OWN’s net losses. The Company will continue to record 100% of OWN's operating losses as long as Discovery provides all funding to OWN and OWN’s accumulated losses continue to exceed the equity contributed. All of OWN's future net income will initially be recorded by the Company until the Company recovers losses absorbed in excess of the Company's equity ownership interest.
	The carrying value of the Company’s investment in OWN of $449 million and $469 million as of December 31, 2013 and 2012, respectively, includes a note receivable balance and accumulated investment losses. The early results of OWN’s operations were below its initial business plan, and while recent operating results have improved, there is a possibility that the results of OWN’s future operations will fall below the revised business plan. The Company continues to monitor the financial results of OWN along with other relevant business information to assess the recoverability of the OWN note receivable. No impairment of the investment balance was recorded during 2013.
	Harpo has the right to require the Company to purchase all or part of Harpo’s interest in OWN at fair market value up to a maximum put amount every two and a half years commencing January 1, 2016. The maximum put amount ranges from $100 million on the first put exercise date up to $400 million on the fourth put exercise date. The Company has recorded no amounts for the put right.

Investments

Investments	12 Months Ended
	Dec. 31, 2013
Investments [Abstract]	'
Investments	'
	INVESTMENTS
	The Company’s investments consisted of the following (in millions).
			December 31,
		Balance Sheet Location	2013		2012
	Trading securities:
	Mutual funds	Prepaid expenses and other current assets	$	129	$	96
	Available-for-sale securities:
	Common stock	Other noncurrent assets	4		—
	Money market mutual funds	Cash and cash equivalents	—		475
	Equity method investments	Equity method investments	1,087		1,095
	Cost method investments	Other noncurrent assets	34		34
	Total investments		$	1,254	$	1,700
	Trading Securities
	Trading securities include investments in mutual funds held in a separate trust, which are owned as part of the Company’s supplemental retirement plan. (See Note 15.)
	Equity Method Investments
	On December 21, 2012, the Company acquired 20% equity ownership interests in Eurosport and in a portfolio of French pay television networks from TF1 for $264 million, including transaction costs. On January 21, 2014, the Company entered into an agreement to purchase a controlling interest in Eurosport. (See Note 3 and Note 6.)
	Other equity method investments include ownership interests in unconsolidated ventures, principally VIEs. All equity method investees are privately owned. The carrying values of the Company’s equity-method investments are consistent with its ownership in the underlying net assets of the investees, except for OWN because the Company has recorded losses in excess of its ownership interest. (See Note 4.)

Fair_Value_Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	FAIR VALUE MEASUREMENTS
	Fair value is defined as the amount that would be received for selling an asset or paid to transfer a liability in an orderly transaction between market participants. Assets and liabilities carried at fair value are classified in the following three categories:
	Level 1	–	Quoted prices for identical instruments in active markets.
	Level 2	–	Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets.
	Level 3	–	Valuations derived from techniques in which one or more significant inputs are unobservable.
	The table below presents assets and liabilities measured at fair value on a recurring basis (in millions).
				December 31, 2013
	Category		Balance Sheet Location	Level 1		Level 2		Level 3		Total
	Assets:
	Trading securities:
	Mutual funds		Prepaid expenses and other current assets	$	129	$	—	$	—	$	129
	Available-for-sale securities:
	Common stock		Other noncurrent assets	4		—		—		4
	Derivatives:
	Foreign exchange		Prepaid expenses and other current assets	—		4		—		4
	Foreign exchange		Other noncurrent assets	—		9		—		9
	Total assets			$	133	$	13	$	—	$	146
	Liabilities:
	Deferred compensation plan		Accrued expenses and other current liabilities	$	129	$	—	$	—	$	129
	Derivatives:
	Foreign exchange		Accrued expenses and other current liabilities	—		1		—		1
	TF1 put right		Other noncurrent liabilities	—		—		20		20
	Total liabilities			$	129	$	1	$	20	$	150
				December 31, 2012
	Category		Balance Sheet Location	Level 1		Level 2		Level 3		Total
	Assets:
	Trading securities:
	Mutual funds		Prepaid expenses and other current assets	$	96	$	—	$	—	$	96
	Available-for-sale securities:
	Money market mutual funds		Cash and cash equivalents	475		—		—		475
	Total assets			$	571	$	—	$	—	$	571
	Liabilities:
	Deferred compensation plan		Accrued expenses and other current liabilities	$	96	$	—	$	—	$	96
	Derivatives:
	Foreign exchange		Accrued expenses and other current liabilities	—		2		—		2
	Total liabilities			$	96	$	2	$	—	$	98
	Trading securities are comprised of investments in mutual funds held in a separate trust which are owned as part of the Company’s deferred compensation plan. The fair value of Level 1 trading securities was determined by reference to the quoted market price per unit in active markets multiplied by the number of units held without consideration of transaction costs. The fair value of the related deferred compensation plan liability was determined based on the fair value of the related investments elected by employees.
	Available-for-sale securities represent equity investments or investments in highly liquid instruments with original maturities of 90 days or less. The fair value of Level 1 available-for-sale securities was determined by reference to the quoted market price per unit in active markets multiplied by the number of units held without consideration of transaction costs.
	Derivative financial instruments are comprised of foreign exchange contracts used by the Company to modify its exposure to market risks from foreign exchange rates. The fair value of Level 2 derivative financial instruments was determined using a market-based approach.
	TF1 has the conditional right to require the Company to purchase its remaining shares in Eurosport at various dates should Discovery complete its planned acquisition of a controlling interest in Eurosport. Written puts that do not qualify for equity classification are reported at fair value and subsequently marked to fair value through earnings regardless of associated contingencies. The fair value measurement of the TF1 put was determined through the use of a Monte Carlo simulation model. The Monte Carlo model simulates the various sources of uncertainty impacting the value of a financial instrument and uses those simulations to develop an estimated fair value for the instrument. The valuation methodology for the TF1 put is based on unobservable estimates and judgments, and therefore represents a Level 3 fair value measurement. At December 31, 2013 and 2012, the estimated fair value of the TF1 put was $20 million and $14 million, respectively. There were no changes to the valuation methodology used to estimate the fair value of the TF1 put at December 31, 2013, except for changes in the remaining term assumption due to Discovery's November 21, 2013 announcement of discussions with TF1 to accelerate Discovery's acquisition of a controlling interest in Eurosport. (See Note 3.)
	In addition to the financial instruments listed in the tables above, the Company holds other financial instruments, including cash deposits, accounts receivable, accounts payable and debt. The carrying values for each approximated their fair values other than debt. The estimated fair value of the Company’s outstanding senior notes using quoted prices from over the counter markets, considered Level 2 inputs, was $6.6 billion and $5.9 billion as of December 31, 2013 and 2012, respectively.

Content_Rights

Content Rights	12 Months Ended
	Dec. 31, 2013
Content Rights [Abstract]	'
Content Rights [Text Block]	'
	CONTENT RIGHTS
	The following table presents a summary of the components of content rights (in millions).
		December 31,
		2013			2012
	Produced content rights:
	Completed	$	3,566		$	2,724
	In-production	334			308
	Coproduced content rights:
	Completed	637			566
	In-production	84			76
	Licensed content rights:
	Acquired	880			483
	Prepaid	48			17
	Content rights, at cost	5,549			4,174
	Accumulated amortization	(3,389		)	(2,497		)
	Total content rights, net	2,160			1,677
	Current portion	(277		)	(122		)
	Noncurrent portion	$	1,883		$	1,555
	Content expense, which consists of content amortization, impairments and other production charges, is included in costs of revenues on the consolidated statements of operations. Content expense was $1,290 million, $940 million and $912 million for 2013, 2012 and 2011, respectively. Content impairments were $33 million, $33 million and $62 million for 2013, 2012 and 2011, respectively. As of December 31, 2013, the Company estimates that approximately 94% of unamortized costs of content rights, excluding content in-production and prepaid licenses, will be amortized within the next three years. As of December 31, 2013, the Company will amortize $879 million of the above unamortized content rights, excluding content in-production and prepaid licenses, during the next twelve months. Licensed content increased following the acquisition of SBS Nordic. (See Note 3.)

Property_And_Equipment

Property And Equipment	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Property And Equipment	'
	PROPERTY AND EQUIPMENT
	Property and equipment consisted of the following (in millions).
		December 31,
		2013			2012
	Land, buildings and leasehold improvements	$	318		$	293
	Broadcast equipment	556			429
	Capitalized software costs	222			196
	Office equipment, furniture, fixtures and other	301			253
	Property and equipment, at cost	1,397			1,171
	Accumulated depreciation	(883		)	(783		)
	Property and equipment, net	$	514		$	388
	Property and equipment includes assets acquired under capital lease arrangements, primarily satellite transponders classified as broadcast equipment, with gross carrying values of $238 million and $170 million as of December 31, 2013 and 2012, respectively. The related accumulated amortization for capital lease assets was $98 million and $73 million as of December 31, 2013 and 2012, respectively.
	The net book value of capitalized software costs was $48 million and $32 million as of December 31, 2013 and 2012, respectively.
	Depreciation expense for property and equipment, including amortization of capitalized software costs and capital lease assets, totaled $111 million, $88 million and $86 million for 2013, 2012 and 2011, respectively.
	In addition to the capitalized property and equipment included in the above table, the Company rents certain facilities and equipment under operating lease arrangements. Rental expense for operating leases totaled $94 million, $60 million and $70 million for 2013, 2012 and 2011, respectively.

Goodwill_And_Intangible_Assets

Goodwill And Intangible Assets	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill And Intangible Assets	'
	GOODWILL AND INTANGIBLE ASSETS
	Goodwill
	Changes in the carrying value of goodwill, by reportable segment, were as follows (in millions).
			U.S.			International				Education			Total
			Networks			Networks
	31-Dec-11		$	4,979		$	1,293			$	19		$	6,291
	Acquisitions (See Note 3.)		19			87				—			106
	Foreign currency translation		—			2				—			2
	31-Dec-12		4,998			1,382				19			6,399
	Acquisitions (See Note 3.)		—			924				25			949
	Dispositions		(9		)	—				—			(9		)
	Foreign currency translation		—			1				1			2
	31-Dec-13		$	4,989		$	2,307			$	45		$	7,341
	The carrying amount of goodwill at the U.S. Networks segment included accumulated impairments of $20 million at December 31, 2013 and 2012.
	Intangible Assets
	Finite-lived intangible assets consisted of the following (in millions, except years).
		Weighted		31-Dec-13										31-Dec-12
		Average
		Amortization
		Period (Years)		Gross			Accumulated				Net			Gross			Accumulated				Net
							Amortization										Amortization
	Intangible assets subject to amortization:
	Trademarks	9		$	432		$	(58	)		$	374		$	40		$	(24	)		$	16
	Customer relationships	16		1,189			(262		)		927			516			(138		)		378
	Other	13		112			(12		)		100			56			(3		)		53
	Total			$	1,733		$	(332	)		$	1,401		$	612		$	(165	)		$	447
	Indefinite-lived intangible assets not subject to amortization (in millions):
			December 31,
			2013			2012
	Intangible assets not subject to amortization:
	Trademarks		$	164		$	164
	During 2013, intangible assets, net increased $954 million primarily due to the recognition of $1.1 billion of finite-lived intangible assets in connection with business acquisitions (see Note 3), partially offset by amortization expense. Amortization expense for finite-lived intangible assets reflects the pattern in which the assets' economic benefits are consumed over their estimated useful lives, often using the straight-line method. Amortization expense, excluding impairments, related to finite-lived intangible assets was $165 million, $29 million and $31 million for 2013, 2012 and 2011, respectively.
	Amortization expense relating to intangible assets subject to amortization for each of the next five years and thereafter is estimated to be as follows (in millions).
			2014			2015				2016			2017			2018				Thereafter
	Amortization expense		$	166		$	150			$	150		$	141		$	131			$	663
	The amount and timing of the estimated expenses in the above table may vary due to future acquisitions, dispositions, impairments or changes in estimated useful lives.
	Impairment Analysis
	During the fourth quarter of 2013, the Company completed its annual impairment review of goodwill. Due to the period of time elapsed since the last quantitative impairment test in 2010, the Company elected to proceed to the first step of the quantitative goodwill impairment test for all reporting units. The estimated fair value of each reporting unit exceeded its carrying value and, therefore, no impairment was recorded. The fair values of the reporting units were determined using DCF and market-based valuation models. The market-based valuation models utilized multiples of earnings before interest, taxes, depreciation and amortization (“EBITDA”). Both the DCF and market-based models resulted in substantially similar fair values. Cash flows were determined based on Company estimates of future operating results and discounted using an internal rate of return based on an assessment of the risk inherent in future cash flows of the respective reporting unit.
	During 2012 the Company performed a qualitative goodwill impairment assessment for all goodwill reporting units, and determined that it was more likely than not that the fair value of those reporting units exceeded their carrying values. Therefore no goodwill impairment was recorded during 2012.
	During 2011 the Company performed a qualitative goodwill impairment assessment and determined that it was more likely than not that the fair value of its reporting units exceeded their carrying values, except for the commerce reporting unit, now a component of the U.S. Networks reporting unit. Due to changes in the long-term projections for the commerce reporting unit, the Company performed a quantitative goodwill impairment test and upon completion concluded that all $20 million in goodwill of the commerce reporting unit was impaired. Impairment charges are recorded in restructuring and impairment charges on the consolidated statements of operations.

Debt

Debt	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Debt	'
	DEBT
	The table below presents the components of outstanding debt (in millions).
		December 31,
		2013			2012
	3.70% Senior Notes, semi-annual interest, due June 2015	$	850		$	850
	5.625% Senior Notes, semi-annual interest, due August 2019	500			500
	5.05% Senior Notes, semi-annual interest, due June 2020	1,300			1,300
	4.375% Senior Notes, semi-annual interest, due June 2021	650			650
	3.30% Senior Notes, semi-annual interest, due May 2022	500			500
	3.25% Senior Notes, semi-annual interest, due April 2023	350			—
	6.35% Senior Notes, semi-annual interest, due June 2040	850			850
	4.95% Senior Notes, semi-annual interest, due May 2042	500			500
	4.875% Senior Notes, semi-annual interest, due April 2043	850			—
	Capital lease obligations	165			110
	Total debt	6,515			5,260
	Unamortized discount	(16		)	(17		)
	Debt, net	6,499			5,243
	Current portion of debt	(17		)	(31		)
	Noncurrent portion of debt	$	6,482		$	5,212
	Senior Notes
	On March 19, 2013, Discovery Communications, LLC ("DCL"), a wholly-owned subsidiary of the Company, issued $1.2 billion aggregate principal amount of senior notes consisting of $350 million aggregate principal amount of 3.25% Senior Notes due April 1, 2023 and $850 million aggregate principal amount of 4.875% Senior Notes due April 1, 2043 (the "2023 and 2043 Notes"). The proceeds received by DCL from the offering were net of a $2 million issuance discount and $12 million of deferred financing costs. Interest on the 2023 and 2043 Notes is payable on April 1 and October 1 of each year.
	On May 17, 2012, Discovery Communications, LLC ("DCL"), a wholly-owned subsidiary of the Company, issued $1.0 billion aggregate principal amount of senior notes consisting of $500 million aggregate principal amount of 3.30% Senior Notes due May 15, 2022 and $500 million aggregate principal amount of 4.95% Senior Notes due May 15, 2042 (the "2022 and 2042 Notes"). The proceeds received by DCL from the offering were net of an $8 million issuance discount and $9 million of deferred financing costs. Interest on the 2022 and 2042 Notes is payable on May 15 and November 15 of each year.
	As of December 31, 2013, all senior notes outstanding are unsecured and rank equally in right of payment and are fully and unconditionally guaranteed on an unsecured and unsubordinated basis by Discovery. DCL has the option to redeem some or all of the senior notes at any time prior to their maturity by paying a make-whole premium plus accrued and unpaid interest, if any, through the date of repurchase. The outstanding senior notes contain certain nonfinancial covenants, events of default and other customary provisions. The Company was in compliance with all covenants and customary provisions and there were no events of default as of December 31, 2013.
	Revolving Credit Facility
	On September 25, 2012, the Company modified its existing $1.0 billion revolving credit facility agreement to extend the expiration date two years to October 12, 2017. The terms of the revolving credit facility otherwise remained substantially the same: DCL continues to be the borrower, Discovery continues to be the unconditional guarantor, the lenders named therein remained the same and the obligations under the credit agreement remain unsecured.
	Under the revolving credit facility, outstanding balances will bear interest at one of the following rates as elected by DCL. Each LIBOR loan will bear interest at the applicable LIBOR rate based on the term selected by DCL, plus a margin ranging from 77.5 basis points to 145 basis points based on DCL’s credit rating. Each Base Rate loan will bear interest at the Base Rate plus a margin ranging from zero basis points to 45 basis points based on DCL’s credit rating. The Base Rate is the highest of (i) the Federal funds rate as published by the Federal Reserve Bank of New York plus 50 basis points, (ii) Bank of America’s prime rate as publicly announced, and (iii) the one month Eurocurrency rate plus 100 basis points.
	DCL is required to pay a facility fee, which ranges from 10 basis points to 30 basis points, based on DCL’s credit rating, multiplied by the actual daily amount of the lenders' aggregate commitments under the senior credit facility, regardless of usage. The facility fee is payable quarterly in arrears. DCL will also pay a letter of credit fee equal to the applicable margin for Eurocurrency rate loans multiplied by the dollar equivalent of the daily amount available to be drawn under such letter of credit. DCL may optionally prepay the loans or irrevocably reduce or terminate the unutilized portion of the commitments under the revolving credit facility, without premium or penalty at any time by the delivery of a notice to that effect as provided under the credit agreement.
	There were no amounts drawn under the revolving credit facility as of December 31, 2013 and 2012.
	The revolving credit facility contains affirmative and negative covenants, including an interest coverage ratio and leverage ratio, events of default and other customary provisions. The Company was in compliance with all covenants and there were no events of default as of December 31, 2013 and 2012.
	Debt Repayment Schedule
	The following table presents a summary of scheduled and estimated debt payments, excluding capital lease obligations, for the succeeding five years based on the amount of debt outstanding as of December 31, 2013 (in millions).
		2014			2015			2016		2017		2018		Thereafter
	Long-term debt payments	$	—		$	850		$	—	$	—	$	—	$	5,500
	Scheduled payments for capital lease obligations outstanding as of December 31, 2013 are disclosed in Note 21.

Derivative_Financial_Instrumen

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Financial Instruments	'
	DERIVATIVE FINANCIAL INSTRUMENTS
	The Company may use derivative financial instruments to modify its exposure to market risks from changes in interest rates and foreign exchange rates. The Company does not enter into or hold derivative financial instruments for speculative trading purposes.
	During 2013 and 2012, the Company entered into foreign exchange contracts in connection with the planned acquisition of SBS Nordic. (See Note 3.) These derivatives, which economically hedged the Company's exposure to fluctuations in certain foreign currency exchange rates, did not qualify for hedge accounting and realized and unrealized losses resulting thereon were reflected in the consolidated statements of operations. There were no unsettled foreign exchange contracts held by the Company in connection with potential business combinations as of December 31, 2013. The Company also acquired foreign currency forward contracts in its business combinations that did not qualify for hedge accounting. Gains and losses on these foreign currency forward contracts are reflected in other income (expense), net on the consolidated statements of operations.
	During 2013, the Company designated foreign currency forward contracts used to hedge anticipated distribution revenue as cash flow hedges. Gains and losses on the effective portion of designated cash flow hedges are initially recorded in accumulated other comprehensive income on the consolidated balance sheet and reclassified to the statement of operations when the hedged item is recognized. The Company also entered into interest rate contracts during 2012 to hedge the pricing for certain senior notes. (See Note 10.) These derivatives qualified for hedge accounting, and gains and losses from changes in fair value were recorded as a component of other comprehensive (loss) income and will be amortized into income over the life of the notes. There were no unsettled interest rate contracts held by the Company as of December 31, 2013 and 2012.
	TF1 has the conditional right to require the Company to purchase its remaining shares in Eurosport. Written puts that do not qualify for equity classification are reported at fair value and subsequently marked to fair value through earnings regardless of associated contingencies. (See Note 6.)
	The Company records all unsettled derivative contracts on the consolidated balance sheet at fair value (see Note 6); derivatives in an asset position are classified as assets, and derivatives in a liability position are classified as liabilities. The Company's master netting agreements allow the Company to settle derivative contracts denominated in the same currency with a single counterparty on the same day on a net basis. There were no amounts eligible to be offset under master netting agreements as of December 31, 2013 and 2012.
	The following table summarizes the notional amount and fair value of the Company's derivative positions as of December 31, 2013 and 2012 (in millions).
			December 31, 2013								December 31, 2012
		Balance Sheet Location	Notional				Fair Value				Notional				Fair Value
	Derivatives designated as hedges:
	Foreign exchange	Prepaid expenses and other current assets	$	16			$	4			$	—			$	—
	Foreign exchange	Other noncurrent assets	$	36			$	9			$	—			$	—
	Derivatives not designated as hedges:
	Foreign exchange	Prepaid expenses and other current assets	$	—			$	—			$	661			$	—
	Foreign exchange	Accrued liabilities	$	4			$	1			$	56			$	2
	Foreign exchange	Other noncurrent liabilities	$	3			$	—			$	—			$	—
	TF1 put right	Other noncurrent liabilities	$	574			$	20			$	—			$	—
	The following table presents the pre-tax impact of derivative instruments on income and other comprehensive (loss) income (in millions).
					Year Ended December 31,
		Type of change	Income and Other Comprehensive Income Location		2013				2012				2011
	Derivatives designated as hedges:
	Foreign exchange contracts	Unrealized gains	Comprehensive (loss) income		$	10			$	—			$	—
	Interest rate contracts	Realized losses	Comprehensive (loss) income		$	—			$	(2	)		$	—
	Foreign exchange contracts	Reclassification of gains	Selling, general and administrative expense		$	(1	)		$	—			$	—
	Derivatives not designated as hedges:
	Foreign exchange contracts	Realized losses	Other income (expense), net		$	(56	)		$	(2	)		$	(1	)
	TF1 put right	Unrealized losses	Other income (expense), net		$	(6	)		$	—			$	—

Redeemable_Noncontrolling_Inte

Redeemable Noncontrolling Interest	12 Months Ended
	Dec. 31, 2013
Redeemable Noncontrolling Interest [Line Items]	'
Noncontrolling Interest Disclosure [Text Block]	'
	REDEEMABLE NONCONTROLLING INTERESTS
	In connection with the acquisition of Discovery Japan on January 10, 2013, the Company recognized $35 million for the fair value of J:COM's noncontrolling interest. (See Note 3.) The terms of the agreement provide J:COM with a right to put all, but not less than all, of its 20% noncontrolling interest to Discovery at any time for cash. For the first four years, the redemption value is the January 10, 2013 fair value denominated in Japanese yen; thereafter, the redemption value is the greater of the then current fair value or the January 10, 2013 fair value denominated in Japanese yen.
	In connection with the acquisition of SBS Nordic on April 9, 2013, the Company recognized an additional $6 million for the fair value of a noncontrolling interest in one of its Danish subsidiaries. The noncontrolling interest holder has a conditional right from November 20, 2014 through May 31, 2015 to put its 20% ownership interest to SBS. The redemption value is denominated in Danish kroner. (See Note 3.)
	Because exercise of these put rights is outside the Company's control, the 20% noncontrolling interest in each entity is presented as redeemable noncontrolling interest outside of stockholders' equity on the Company's consolidated balance sheet. Redeemable noncontrolling interests reflected as of the balance sheet date are the greater of the noncontrolling interest balances adjusted for comprehensive income items or the redemption values remeasured at the period end foreign exchange rates (i.e. the "floor"). Adjustments to the carrying amount of redeemable noncontrolling interests to redemption value as a result of changes in exchange rates are reflected in currency translation adjustments, a component of other comprehensive (loss) income; however, such currency translation adjustments to redemption value are allocated to Discovery stockholders only. Redeemable noncontrolling interest adjustments of redemption value to the floor are reflected in retained earnings and as an adjustment to income from continuing operations available to Discovery Communications, Inc. stockholders in the calculation of earnings per share. (See Note 18.)
	The table below presents the reconciliation of changes in redeemable noncontrolling interests (in millions).
		Redeemable Noncontrolling Interests
	Balance, December, 31 2012	$	—
	Initial fair value of redeemable noncontrolling interests of acquired businesses	41
	Comprehensive income adjustments:
	Net income attributable to redeemable noncontrolling interests	1
	Other comprehensive loss attributable to redeemable noncontrolling interests	(3		)
	Currency translation on redemption values	(5		)
	Retained earnings adjustments:
	Adjustments to redemption value	2
	Balance, December 31, 2013	$	36

Equity

Equity	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Equity	'
	EQUITY
	Common Stock
	The Company has three series of common stock authorized, issued and outstanding as of December 31, 2013: Series A common stock, Series B common stock and Series C common stock. Holders of these three series of common stock have equal rights, powers and privileges, except as otherwise noted. Holders of Series A common stock are entitled to one vote per share and holders of Series B common stock are entitled to ten votes per share on all matters voted on by stockholders, except for directors to be elected by holders of the Company’s Series A convertible preferred stock. Holders of Series C common stock are not entitled to any voting rights, except as required by Delaware law. Generally, holders of Series A common stock and Series B common stock and Series A convertible preferred stock vote as one class, except for certain preferential rights afforded to holders of Series A convertible preferred stock.
	Holders of Series A common stock, Series B common stock and Series C common stock will participate equally in cash dividends if declared by the Board of Directors, subject to preferential rights of outstanding preferred stock.
	Each share of Series B common stock is convertible, at the option of the holder, into one share of Series A common stock. Series A and Series C common stock are not convertible.
	Generally, distributions made in shares of Series A common stock, Series B common stock or Series C common stock will be made proportionally to all common stockholders. In the event of a reclassification, subdivision or combination of any series of common stock, the shares of the other series of common stock will be equally reclassified, subdivided or combined.
	In the event of a liquidation, dissolution, or winding up of Discovery, after payment of Discovery’s debts and liabilities and subject to preferential rights of outstanding preferred stock, holders of Series A common stock, Series B common stock and Series C common stock and holders of Series A and Series C preferred stock will share equally in any assets available for distribution to holders of common stock.
	Discovery’s Board of Directors includes John C. Malone. On February 13, 2013, Dr. Malone entered into an agreement granting David Zaslav, the Company’s President and Chief Executive Officer, certain voting and purchase rights with respect to the approximately 5.9 million shares of the Company’s Series B common stock owned by Dr. Malone. The agreement gives Mr. Zaslav the right to vote the Series B shares if Dr. Malone is not otherwise voting or directing the vote of those shares. The agreement also provides that if Dr. Malone proposes to sell the Series B shares, Mr. Zaslav will have the first right to negotiate for the purchase of the shares. If that negotiation is not successful and Dr. Malone proposed to sell the Series B shares to a third party, Mr. Zaslav will have the exclusive right to match that offer. The rights granted under the agreement will remain in effect for as long as Mr. Zaslav is either employed as a principal executive officer of the Company or serving on its board of directors.
	Preferred Stock
	The Company has two series of preferred stock authorized, issued and outstanding as of December 31, 2013: Series A convertible preferred stock and Series C convertible preferred stock. In addition to the 150 million shares authorized for Series A and Series C convertible preferred stock (75 million for each series) that is disclosed on the consolidated balance sheets, the Company has authorized 50 million shares of preferred stock that are undesignated and issuable in accordance with the provisions of the Company’s charter. In connection with the formation of Discovery, the Company issued shares of both its Series A convertible preferred stock and Series C convertible preferred stock to Advance/Newhouse Programming Partnership ("Advance/Newhouse"). As of December 31, 2013, all outstanding shares of Series A and Series C convertible preferred stock are held by Advance/Newhouse.
	Holders of Series A and Series C convertible preferred stock have equal rights, powers and privileges, except as otherwise noted. Except for the election of common stock directors, the holders of Series A convertible preferred stock are entitled to vote on matters to which holders of Series A and Series B common stock are entitled to vote and holders of Series C convertible preferred stock are entitled to vote on matters to which holders of Series C common stock are entitled to vote pursuant to Delaware law. Series A convertible preferred stockholders vote on an as converted to common stock basis together with the Series A and Series B common stockholders as a single class on all matters except the election of directors. Additionally, through its ownership of the Series A and Series C convertible preferred stock, Advance/Newhouse has special voting rights on certain matters and the right to elect three directors. Holders of the Company’s common stock are not entitled to vote in the election of such directors. Advance/Newhouse retains these rights so long as it or its permitted transferees own or have the right to vote such shares that equal at least 80% of the shares of Series A convertible preferred stock issued to Advance/Newhouse in connection with the formation of Discovery plus any Series A convertible preferred stock released from escrow, as may be adjusted for certain capital transactions (the “Base Amount”).
	Subject to the prior preferences and other rights of any senior stock, holders of Series A and Series C convertible preferred stock will participate equally with common stockholders on an as converted basis to common stock basis in any cash dividends declared by the Board of Directors.
	Each share of Series A and Series C convertible preferred stock is convertible, at the option of the holder, into one share of Series A or Series C common stock, respectively, subject to anti-dilution adjustments. Generally, each share of Series A and Series C convertible preferred stock will automatically convert into the applicable series of common stock if such shares are transferred from Advance/Newhouse to a third party and such transfer is not a permitted transfer. On December 28, 2012, Advance/Newhouse completed the transfer of 8.4 million shares of their Series C convertible preferred stock to a third party, which, pursuant to provisions in the Company's articles of incorporation, automatically converted into an equal number of shares of Series C common stock. Upon conversion, Discovery derecognized the preferred stock based on its carrying value and allocated that amount to common stock. Advance/Newhouse converted an additional 550 thousand shares of Series C convertible preferred stock on April 5, 2013. No gain or loss was recorded on either conversion. Additionally, all of the outstanding Series A and Series C convertible preferred stock will automatically convert into the applicable series of common stock at such time as the number of outstanding shares of Series A convertible preferred stock is less than 80% of the Base Amount. The Base Amount is the 70 million shares of Series A and Series C Preferred Stock initially issued to Advance/Newhouse, plus any shares released from escrow as of the date the Base Amount is calculated.
	The Company and Advance/Newhouse are parties to an escrow agreement that entitles Advance/Newhouse to additional shares of Series A or Series C convertible preferred stock in the event the Company issues common stock to settle the exercise of certain stock options and stock appreciation rights associated with the formation of Discovery on September 17, 2008. The Company initially placed approximately 1.6 million shares of Series A and Series C convertible preferred stock (approximately 0.8 million for each series) into an escrow account pursuant to this agreement. The Company records a noncash stock dividend when the additional shares of preferred stock become due to Advance/Newhouse. The dividend recorded for each preferred share due to Advance/Newhouse is measured at the fair value of the Series A or Series C convertible preferred stock on September 17, 2008, which is the date Discovery was formed and entered into the obligation to contingently issue additional preferred shares to Advance/Newhouse. There were no noncash stock dividends declared or preferred stock released from escrow during 2013, 2012 and 2011.
	In the event of a liquidation, dissolution or winding up of Discovery, after payment of Discovery’s debts and liabilities and subject to the prior payment with respect to any stock ranking senior to Series A and Series C convertible preferred stock, the holders of Series A and Series C convertible preferred stock will receive, before any payment or distribution is made to the holders of any common stock or other junior stock, an amount (in cash or property) equal to $0.01 per share. Following payment of such amount and the payment in full of all amounts owing to the holders of securities ranking senior to Discovery’s common stock, holders of Series A and Series C convertible preferred stock will share equally on an as converted to common stock basis with the holders of common stock with respect to any assets remaining for distribution to such holders.
	Preferred Stock Repurchase
	On April 5, 2013, the Company repurchased 4 million shares of its Series C convertible preferred stock from Advance Programming Holdings, LLC for an aggregate purchase price of $256 million, which was recorded as a decrease of par value of preferred stock and retained earnings. The repurchase was made outside of the Company's publicly announced stock repurchase program, using cash on hand.
	Stock Repurchase Program
	Under the Company's stock repurchase program, management is authorized to purchase shares of the Company's common stock from time to time through open market purchases or privately negotiated transactions at prevailing prices as permitted by securities laws and other legal requirements, and subject to stock price, business and market conditions and other factors. As of December 31, 2013, the total authorization under the stock repurchase program was $4.0 billion and the Company had remaining authorization of $470 million for future repurchases under the stock repurchase program, which will expire on December 11, 2014. On February 3, 2014, the Company's Board of Directors approved an additional $1.5 billion under the stock repurchase program, which will expire on February 3, 2016.
	Repurchased stock is recorded in treasury stock on the consolidated balance sheet. All repurchases during 2013, 2012 and 2011 were made through open market transactions and were funded using cash on hand. As of December 31, 2013, the Company had repurchased over the life of the program 2.8 million and 70.0 million shares of Series A and Series C common stock for the aggregate purchase price of $171 million and $3.4 billion, respectively.
	The table below presents a summary of stock repurchases (in millions) under the stock repurchase program.
			Year Ended December 31,
			2013				2012				2011
	Series A Common Stock:
	Shares repurchased		0.8				2				—
	Purchase price		$	62			$	109			$	—
	Series C Common Stock:
	Shares repurchased		13.3				26.5				27.2
	Purchase price		$	987			$	1,271			$	997
	Total shares repurchased		14.1				28.5				27.2
	Total purchase price		$	1,049			$	1,380			$	997
	Other Comprehensive (Loss) Income
	The table below presents the tax effects related to each component of other comprehensive (loss) income and reclassifications made into the consolidated statements of operations (in millions).
		Year Ended December 31, 2013												Year Ended December 31, 2012								Year Ended December 31, 2011
		Pretax				Tax				Net-of-tax				Pretax			Tax Benefit (Provision)		Net-of-tax			Pretax		Tax Benefit (Provision)			Net-of-tax
						Benefit (Provision)
	Currency translation adjustments:
	Unrealized gains	$	16			$	(21	)		$	(5	)		$	21		$	7	$	28		$	15	$	(5	)	$	10
	Reclassifications to other income (expense), net	(9		)		3				(6		)		—			—		—			—		—			—
	Derivative and market value adjustments:
	Unrealized gains/(losses)	13				(4		)		9				(2		)	1		(1		)	—		—			—
	Reclassifications to selling, general and administrative expense	(1		)		—				(1		)		—			—		—			—		—			—
	Other comprehensive (loss) income	$	19			$	(22	)		$	(3	)		$	19		$	8	$	27		$	15	$	(5	)	$	10
	Accumulated Other Comprehensive Income
	The table below presents the changes in the components of accumulated other comprehensive income, net of taxes (in millions). There were no reclassifications from accumulated other comprehensive income in 2012 and 2011.
			Currency Translation Adjustments				Derivative				Accumulated
							and Market				Other
							Value				Comprehensive Income
							Adjustments
	31-Dec-10		$	(39	)		$	6			$	(33	)
	Other comprehensive income		10				—				10
	31-Dec-11		(29		)		6				(23		)
	Other comprehensive income (loss)		28				(1		)		27
	31-Dec-12		(1		)		5				4
	Other comprehensive (loss) income from unrealized (losses) gains		(5		)		9				4
	Reclassifications from accumulated other comprehensive income to net income		(6		)		(1		)		(7		)
	Other comprehensive (loss) income		(11		)		8				(3		)
	Other comprehensive loss (income) attributable to redeemable noncontrolling interests		4				(1		)		3
	31-Dec-13		$	(8	)		$	12			$	4

EquityBased_Compensation

Equity-Based Compensation	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock-Based Compensation	'
	EQUITY-BASED COMPENSATION
	The Company has various incentive plans under which unit awards, SARs, stock options, PRSUs and RSUs have been issued. As of December 31, 2013, the Company has reserved a total of 33 million shares of its Series A and Series C common stock for future exercises of outstanding and future grants of stock options and future vesting of outstanding and future grants of PRSUs and RSUs. Upon exercise of stock options or vesting of PRSUs and RSUs, the Company issues new shares from its existing authorized but unissued shares. There were 23 million shares of common stock available in reserves that were available for future grant under the incentive plans as of December 31, 2013.
	Equity-Based Compensation Expense
	The table below presents the components of equity-based compensation expense (in millions).
		Year Ended December 31,
		2013			2012				2011
	SARs	$	63		$	21			$	1
	Unit awards	60			68				39
	PRSUs and RSUs	41			36				23
	Stock options	25			29				36
	ESPP	1			—				—
	Total equity-based compensation expense	$	190		$	154			$	99
	Tax benefit recognized	$	51		$	45			$	35
	Compensation expense for all awards was recorded in selling, general and administrative expense on the consolidated statements of operations. As of December 31, 2013 and 2012, the Company recorded total liabilities for cash-settled awards of $138 million and $80 million, respectively. The current portion of the liability for cash-settled awards was $85 million and $55 million as of December 31, 2013 and 2012, respectively.
	Equity-Based Award Activity
	SARs
	The table below presents SAR award activity (in millions, except years and weighted-average grant price).
		SARs		Weighted-				Weighted-		Aggregate
				Average				Average		Intrinsic
				Grant				Remaining		Value
				Price				Contractual
								Term
								(years)
	Outstanding as of December 31, 2012	1.8		$	41.13
	Granted	1.9		$	65.3
	Settled	(0.5	)	$	41.25					$	11
	Outstanding as of December 31, 2013	3.2		$	55.2			1.4		$	113
	Vested and expected to vest as of December 31, 2013	3.2		$	55.19			1.4		$	113
	The fair value of outstanding SARs is estimated using the Black-Scholes option-pricing model. The weighted-average assumptions used to determine the fair value of outstanding SARs were as follows.
		Year Ended December 31,
		2013		2012			2011
	Risk-free interest rate	0.45	%	0.29	%		0.75	%
	Expected term (years)	1.4		1.6			4.1
	Expected volatility	22.77	%	26.31	%		37.53	%
	Dividend yield	—		—			—
	SARs entitle the holder to receive a cash payment for the amount by which the price of the Company’s Series A common stock exceeds the base price established on the grant date. SARs are granted with a base price equal to or greater than the closing market price of the Company’s Series A common stock on the date of grant.
	As of December 31, 2013, the weighted-average fair value of SARs outstanding was $35.02 per award. The Company made cash payments of $11 million during 2013, and $1 million during 2012 and 2011 to settle exercised SARs. As of December 31, 2013, there was $38 million of unrecognized compensation cost, net of estimated forfeitures, related to SARs, which is expected to be recognized over a weighted-average period of 1.3 years.
	Unit Awards
	The table below presents unit award activity (in millions, except years and weighted-average grant price).
		Unit Awards		Weighted-				Weighted-		Aggregate
				Average				Average		Intrinsic
				Grant				Remaining		Value
				Price				Contractual
								Term
								(years)
	Outstanding as of December 31, 2012	3.1		$	34.78
	Settled	(1.5	)	$	30.78					$	53
	Outstanding as of December 31, 2013	1.6		$	38.46			0.4		$	81
	Vested and expected to vest as of December 31, 2013	1.6		$	38.46			0.4		$	81
	Unit awards represent the contingent right to receive a cash payment for the amount by which the vesting price exceeds the grant price. Because unit awards are cash-settled, the Company remeasures the fair value and compensation expense of outstanding unit awards each reporting date until settlement. The vesting price is the average closing price of the Company’s Series A common stock over the 10 trading days immediately preceding and including the vesting date and the 10 trading days immediately subsequent to the vesting date. The grant price is based on the average closing price of the Company’s Series A common stock over the 10 trading days immediately preceding and including the grant date and the 10 trading days immediately following the grant date. Unit awards vest ratably over four years from the grant date based on continuous service and are generally settled within sixty days of vesting. Unit awards generally provide for accelerated vesting upon retirement or after reaching a specified age and years of service. The Company made cash payments totaling $53 million, $44 million and $125 million during 2013, 2012 and 2011, respectively, to settle vested unit awards. As of December 31, 2013, there was $17 million of unrecognized compensation cost related to unit awards, which is expected to be recognized over a weighted-average period of 1.0 year. Of the 1.6 million unit awards unvested as of December 31, 2013, 1.0 million and 0.6 million are scheduled to vest during 2014 and 2015, respectively.
	The fair value of outstanding unit awards is estimated using the Black-Scholes option-pricing model. The weighted-average assumptions used to determine the fair value of outstanding unit awards were as follows.
		Year Ended December 31,
		2013		2012			2011
	Risk-free interest rate	0.16	%	0.18	%		0.19	%
	Expected term (years)	0.4		0.7			1
	Expected volatility	21.13	%	25.46	%		32.84	%
	Dividend yield	—		—			—
	The weighted-average fair value of unit awards outstanding was $49.56 and $28.49 as of December 31, 2013 and 2012, respectively.
	PRSUs and RSUs
	The table below presents PRSU and RSU activity (in millions, except years and weighted-average grant price).
		PRSUs and		Weighted-Average				Weighted-Average		Aggregate
		RSUs		Grant				Remaining		Fair
				Price				Contractual		Value
					Term
					(years)
Outstanding as of December 31, 2012	2.9		$	39.66
Granted	0.3		$	75.08
Converted	(0.7	)	$	33.77					$	48
Forfeited	(0.1	)	$	53.86
Outstanding as of December 31, 2013	2.4		$	46			1		$	220
Vested and expected to vest as of December 31, 2013	2.3		$	45.54			1		$	211
The Company has granted PRSUs to certain senior level executives. PRSUs represent the contingent right to receive shares of the Company’s Series A common stock, substantially all of which vest over three to four years based on continuous service and whether the Company achieves certain operating performance targets. The performance targets for substantially all PRSUs are cumulative measures of the Company’s adjusted operating income before depreciation and amortization (as defined in Note 22), free cash flows and revenues over a three year period. The number of PRSUs that vest principally range from 0% to 100% based on a sliding scale where achieving or exceeding the performance target will result in 100% of the PRSUs vesting and achieving less than 80% of the target will result in no portion of the PRSUs vesting. Additionally, for certain PRSUs the Company’s Compensation Committee has discretion in determining the final amount of units that vest, but may not increase the amount of any PRSU award above 100%. Upon vesting, each PRSU becomes convertible into a share of the Company’s Series A common stock on a one-for-one basis. Holders of PRSUs would not receive payments or accruals of dividends or dividend equivalents in the event the Company was to pay regular cash dividends until such PRSUs are converted into shares of the Company’s common stock.
The Company records compensation expense for PRSUs ratably over the longer of the service period or performance period when it is probable that the performance targets will be achieved. In any period in which the Company determines that achievement of the performance targets is not probable, the Company ceases recording compensation expense and all previously recognized compensation expense for the award is reversed.
Compensation expense is separately recorded for each vesting tranche of PRSUs for a particular grant. For most PRSUs, the Company measures the fair value and related compensation cost based on the closing price of the Company’s Series A common stock on the grant date. For PRSUs for which the Company’s Compensation Committee has discretion in determining the final amount of units that vest, compensation cost is remeasured at each reporting date based on the closing price of the Company’s Series A common stock.
As of December 31, 2013, there were approximately 1.6 million outstanding PRSUs with a weighted-average grant price of $43.12. As of December 31, 2013, unrecognized compensation cost, net of expected forfeitures, related to PRSUs was $20 million, which is expected to be recognized over a weighted-average period of 8 months based on the Company’s current assessment of the PRSUs that will vest, which may differ from actual results.
RSUs vest ratably each year over periods of one to four years based on continuous service. As of December 31, 2013, there were approximately 1 million outstanding RSUs with a weighted-average grant price of $52.15. As of December 31, 2013, there was $22 million of unrecognized compensation cost, net of expected forfeitures, related to RSUs, which is expected to be recognized over a weighted-average period of 2.0 years.
Stock Options
The table below presents stock option activity (in millions, except years and weighted-average exercise price).
	Stock Options		Weighted-				Weighted-		Aggregate
			Average				Average		Intrinsic
			Exercise				Remaining		Value
			Price				Contractual
							Term
							(years)
Outstanding as of December 31, 2012	9		$	28.53
Granted	1		$	75.25
Exercised	(2.2	)	$	21.18					$	130
Forfeited	(0.2	)	$	52.91
Outstanding as of December 31, 2013	7.6		$	36.47			4.6		$	410
Vested and expected to vest as of December 31, 2013	7.4		$	35.86			4.6		$	403
Exercisable as of December 31, 2013	4.7		$	26.08			4.3		$	304
Stock options are granted with an exercise price equal to or in excess of the closing market price of the Company’s Series A common stock on the date of grant. Substantially all stock options vest ratably over three to four years from the grant date based on continuous service and expire three to ten years from the date of grant. Stock option awards generally provide for accelerated vesting upon retirement or after reaching a specified age and years of service. The Company received cash payments from the exercise of stock options totaling $46 million, $80 million and $60 million during 2013, 2012 and 2011, respectively. As of December 31, 2013, there was $35 million of unrecognized compensation cost, net of expected forfeitures, related to stock options, which is expected to be recognized over a weighted-average period of 1.7 years.
The fair value of stock options is estimated using the Black-Scholes option-pricing model. The weighted-average assumptions used to determine the fair value of stock options as of the date of grant during 2013, 2012 and 2011 were as follows.
	Year Ended December 31,
	2013		2012			2011
Risk-free interest rate	0.79	%	1.02	%		1.53	%
Expected term (years)	5		5			5
Expected volatility	35.97	%	38.33	%		40.17	%
Dividend yield	—		—			—
The weighted-average grant date fair value of options granted during 2013, 2012 and 2011 was $24.46, $16.94 and $14.32, respectively, per option. The total intrinsic value of options exercised during 2013, 2012 and 2011 was $130 million, $148 million and $99 million, respectively.
Employee Stock Purchase Plan
On May 17, 2011, the Company’s stockholders approved the DESPP, which enables eligible employees to purchase shares of the Company’s common stock through payroll deductions or other permitted means. Unless otherwise determined by the Company’s Compensation Committee, the purchase price for shares offered under the DESPP is 85% of the closing price of the Company’s Series A common stock on the purchase date. The Company recognizes the fair value of the discount associated with shares purchased in selling, general and administrative expense on the consolidated statement of operations. The Company’s Board of Directors has authorized 5 million shares of the Company’s common stock to be issued under the DESPP. During the years ended December 31, 2013 and 2012, the Company issued 71 thousand and 84 thousand shares under the DESPP and received cash totaling $5 million and $4 million, respectively. No shares were issued under the DESPP and no cash was received during 2011.

Retirement_Savings_Plans

Retirement Savings Plans	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Retirement Savings Plans	'
	RETIREMENT SAVINGS PLANS
	The Company has defined contribution and other savings plans for the benefit of its employees that meet certain eligibility requirements. Eligible employees may contribute a portion of their compensation to the plans, which may be subject to certain statutory limitations. The Company pays discretionary matching contributions, subject to plan provisions, which vest immediately. The Company paid discretionary matching contributions of $28 million, $16 million, and $14 million during 2013, 2012 and 2011, respectively. The Company's contributions were recorded in selling, general and administrative expense on the consolidated statements of operations.
	The Company’s savings plans include a deferred compensation plan through which members of the Company’s executive team in the U.S. may elect to defer up to 50% of their eligible compensation. The amounts deferred are invested in various mutual funds at the direction of the executive, which are used to finance payment of the deferred compensation obligation. Distributions from the deferred compensation plan are made upon termination or other events as specified in the plan.
	The Company has established a separate trust to hold the investments that finance the deferred compensation obligation. The accounts of the separate trust are included in the Company’s consolidated financial statements. The investments are included in prepaid expenses and other current assets and the deferred compensation obligation is included in accrued liabilities on the consolidated balance sheets. The values of the investments and deferred compensation obligation are recorded at fair value. Changes in the fair value of the investments are offset by changes in the fair value of the deferred compensation obligation. (See Note 6.)

Exit_And_Restructuring_Charges

Exit And Restructuring Charges	12 Months Ended
	Dec. 31, 2013
Restructuring and Related Activities [Abstract]	'
Exit And Restructuring Charges	'
	EXIT AND RESTRUCTURING CHARGES
	Exit and restructuring charges, by reportable segment were as follows (in millions).
		Year Ended December 31,
		2013			2012			2011
	U.S. Networks	$	4		$	3		$	4
	International Networks	11			1			3
	Corporate	1			2			3
	Total exit and restructuring charges	$	16		$	6		$	10
	Changes in exit and restructuring liabilities by major category were as follows (in millions).
		Contract			Employee			Total
		Terminations			Relocations/
					Terminations
	31-Dec-10	$	5		$	10		$	15
	Net accruals	—			10			10
	Cash paid	(1		)	(15		)	(16		)
	December 31, 2011	4			5			9
	Net accruals	1			5			6
	Cash paid	(2		)	(7		)	(9		)
	December 31, 2012	3			3			6
	Net accruals	—			16			16
	Cash paid	(1		)	(14		)	(15		)
	December 31, 2013	$	2		$	5		$	7
	During 2013, 2012 and 2011, exit and restructuring costs related to cost reduction efforts and management changes. The increase in restructuring charges during 2013 mostly results from restructuring the Company's existing operations in the Nordic region following the acquisition of SBS Nordic.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	INCOME TAXES
	The domestic and foreign components of income from continuing operations before income taxes were as follows (in millions).
		Year Ended December 31,
		2013				2012				2011
	Domestic	$	1,104			$	869			$	1,015
	Foreign	632				649				548
	Income from continuing operations before income taxes	$	1,736			$	1,518			$	1,563
	The components of the provision for income taxes were as follows (in millions).
		Year Ended December 31,
		2013				2012				2011
	Current:
	Federal	$	333			$	419			$	253
	State and local	68				95				38
	Foreign	175				118				109
		576				632				400
	Deferred:
	Federal	113				(69		)		17
	State and local	(2		)		9				13
	Foreign	(28		)		(10		)		(3		)
		83				(70		)		27
	Provision for income taxes	$	659			$	562			$	427
	In November 2011, the Company reorganized certain of its international operations to better align its functions and establish a regional ownership structure. As a result of the 2011 reorganization, the Company recognized an income tax benefit of $112 million in the fourth quarter of 2011 for foreign tax credits, which were previously not considered realizable. The regional holding companies are foreign corporations whose earnings will not be taxed in the U.S. until the earnings are repatriated to the U.S. The Company has not recorded a provision for deferred U.S. tax expense on the undistributed earnings of these foreign subsidiaries since the Company intends to indefinitely reinvest the earnings of these foreign subsidiaries outside the U.S. The amount of such undistributed foreign earnings was approximately $278 million at December 31, 2013. The determination of the amount of unrecognized U.S. deferred income tax liability with respect to these undistributed foreign earnings is not practicable.
	The following table reconciles the Company's effective income tax rate to the U.S. federal statutory income tax rate of 35%.
		Year Ended December 31,
		2013			2012			2011
	U.S. federal statutory income tax rate	35	%		35	%		35	%
	State and local income taxes, net of federal tax benefit	3	%		5	%		2	%
	Effect of foreign operations	2	%		(1	)%		(1	)%
	Domestic production activity deductions	(2	)%		(3	)%		(2	)%
	Remeasurement gain on previously held equity interest	(2	)%		—	%		—	%
	Foreign tax credit benefit	—	%		—	%		(7	)%
	Non-deductible goodwill	—	%		—	%		(1	)%
	Other, net	2	%		1	%		1	%
	Effective income tax rate	38	%		37	%		27	%
	Components of deferred income tax assets and liabilities were as follows (in millions).
		December 31,
		2013				2012
	Deferred income tax assets:
	Accounts receivable	$	3			$	2
	Tax attribute carry-forward	126				198
	Unrealized loss on derivatives and foreign currency translation adjustments	2				26
	Accrued liabilities and other	202				117
	Total deferred income tax assets	333				343
	Valuation allowance	(18		)		(23		)
	Net deferred income tax assets	315				320
	Deferred income tax liabilities:
	Intangible assets	(421		)		(178		)
	Content rights	(280		)		(173		)
	Equity method investments	(131		)		(117		)
	Notes receivable	(16		)		(17		)
	Other	(31		)		(33		)
	Total deferred income tax liabilities	(879		)		(518		)
	Net deferred income tax liabilities	$	(564	)		$	(198	)
	The Company’s deferred income tax assets and liabilities were reported on the consolidated balance sheets as follows (in millions).
		December 31,
		2013				2012
	Deferred income tax assets	$	73			$	74
	Deferred income tax liabilities	(637		)		(272		)
	Net deferred income tax liabilities	$	(564	)		$	(198	)
	The Company’s operating loss carry-forwards were reported on the consolidated balance sheets as follows (in millions).
		Federal(a)				State				Foreign
	Operating loss carry-forwards	$	9			$	574			$	55
	Deferred tax asset related to loss carry-forwards	$	3			$	14			$	13
Valuation allowance against loss carry-forwards	$	—			$	(11	)		$	(7	)
Earliest expiration date of loss carry-forwards	2028				2014				2014
(a) The use of the federal operating loss carry-forwards is subject to annual limitations.
A reconciliation of the beginning and ending amounts of unrecognized tax benefits (without related interest amounts) is as follows (in millions).
	Year Ended December 31,
	2013				2012				2011
Beginning balance	$	128			$	46			$	63
Additions based on tax positions related to the current year	25				48				15
Additions for tax positions of prior years	36				39				7
Additions for tax positions acquired in business combinations	9				—				—
Reductions for tax positions of prior years	(8		)		(4		)		(20		)
Settlements	(3		)		(1		)		(1		)
Reductions due to lapse of statutes of limitations	(2		)		—				(18		)
Ending balance	$	185			$	128			$	46
The balances as of December 31, 2013, 2012 and 2011 included $131 million, $109 million and $35 million, respectively, of unrecognized tax benefits that, if recognized, would reduce the Company’s income tax expense and effective tax rate after giving effect to interest deductions and offsetting benefits from other tax jurisdictions.
The Company and its subsidiaries file income tax returns in the U.S. and various state and foreign jurisdictions. The Internal Revenue Service (“IRS”) concluded its examination of the Company's 2009 and 2008 consolidated federal income tax returns in the second quarter with no material adjustments. The Company is currently under examination by the IRS for its 2011 and 2010 consolidated federal income tax returns. The Company does not anticipate any material adjustments. With few exceptions, the Company is no longer subject to audit by any jurisdiction for years prior to 2006.
It is reasonably possible that the total amount of unrecognized tax benefits related to certain of the Company's uncertain tax positions could decrease by as much as $21 million within the next twelve months as a result of ongoing audits, lapses of statutes of limitations or regulatory developments.
As of December 31, 2013, 2012 and 2011, the Company had accrued approximately $11 million, $9 million and $3 million, respectively, of total interest and penalties payable related to unrecognized tax benefits. The Company’s policy is to recognize interest and penalties related to unrecognized tax benefits as a component of income tax expense.

Earnings_Per_Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Net Income Per Share Available To Discovery Communications, Inc. Stockholders	'
	The table below sets forth the computation of the weighted-average number of shares outstanding utilized in determining basic and diluted earnings per share (in millions, except per share amounts).
		Year Ended December 31,
		2013				2012			2011
	Numerator:
	Income from continuing operations, net of taxes	$	1,077			$	956		$	1,136
	Less:
	Net income attributable to noncontrolling interests	(1		)		(2		)	(1		)
	Net income attributable to redeemable noncontrolling interests	(1		)		—			—
	Redeemable noncontrolling interest adjustments to redemption value	(2		)		—			—
	Income from continuing operations available to Discovery Communications, Inc. stockholders, net of taxes	1,073				954			1,135
	Loss from discontinued operations available to Discovery Communications, Inc. stockholders, net of taxes	—				(11		)	(3		)
	Net income available to Discovery Communications, Inc. stockholders	$	1,073			$	943		$	1,132
	Denominator:
	Weighted-average shares outstanding – basic	357				376			401
	Weighted-average dilutive effect of equity awards	4				4			4
	Weighted-average shares outstanding – diluted	361				380			405
	Income (Loss) Per Share:
	Basic earnings per share available to Discovery Communications, Inc. stockholders:
	Continuing operations	$	3.01			$	2.54		$	2.83
	Discontinued operations	$	—			$	(0.03	)	$	(0.01	)
	Net income	$	3.01			$	2.51		$	2.82
	Diluted earnings per share available to Discovery Communications, Inc. stockholders:
	Continuing operations	$	2.97			$	2.51		$	2.8
	Discontinued operations	$	—			$	(0.03	)	$	(0.01	)
	Net income	$	2.97			$	2.48		$	2.8
	Income per share amounts may not sum since each is calculated independently.
	Earnings per share is calculated by dividing the applicable income (loss) available to Discovery Communications, Inc. stockholders from continuing and discontinued operations, as applicable, by the weighted average number of shares outstanding. The Company began applying the two-class method for calculating earnings per share in the first quarter of 2013 as a result of the addition of redeemable noncontrolling interests. (See Note 12.) The two-class method calculates earnings per share by distinguishing between the classes of securities based on the proportionate participation rights of each award type in the Company's undistributed income. Adjustments to the carrying amount of redeemable noncontrolling interest to redemption value, excluding currency translation adjustments, are reflected in earnings per share using the two-class method, similar to the treatment of a dividend.
	At December 31, 2013, 2012 and 2011, the weighted average number of basic and diluted shares outstanding included the Company’s outstanding Series A, Series B and Series C common stock, as well as its outstanding Series A and Series C convertible preferred stock, as the holder of each common and preferred series legally participates equally in any per share distributions. Diluted earnings per share adjusts basic earnings per share for the dilutive effect of the assumed exercise of outstanding equity awards using the treasury stock method. Only outstanding PRSUs whose performance targets have been achieved as of the last day of the most recent period are included in the dilutive effect calculation.
	The table below presents the details of the equity-based awards and preferred shares that were excluded from the calculation of diluted earnings per share (in millions).
		Year Ended December 31,
		2013			2012			2011
	Anti-dilutive stock options and RSUs	1			—			1
	PRSUs whose performance targets are not achieved	1			2			1

Supplemental_Disclosures

Supplemental Disclosures	12 Months Ended
	Dec. 31, 2013
Disclosure Text Block Supplement [Abstract]	'
Supplemental Disclosures	'
	SUPPLEMENTAL DISCLOSURES
	Valuation and Qualifying Accounts
	Changes in valuation and qualifying accounts consisted of the following (in millions).
			Beginning				Additions			Write-offs			Utilization			End
			of Year													of Year
	2013
	Allowance for doubtful accounts		$	12			$	6		$	(2	)	$	—		$	16
	Deferred tax valuation allowance		23				7			(11		)	(1		)	18
	2012
	Allowance for doubtful accounts		12				4			(4		)	—			12
	Deferred tax valuation allowance		24				8			(9		)	—			23
	2011
	Allowance for doubtful accounts		13				2			(3		)	—			12
	Deferred tax valuation allowance		13				11			—			—			24
	Accrued Liabilities
	Accrued liabilities consisted of the following (in millions).
		December 31,
		2013				2012
	Accrued payroll and related benefits	$	373			$	275
	Content rights payable	212				131
	Current portion of equity-based compensation liabilities	85				55
	Accrued interest	43				30
	Accrued income taxes	71				59
	Other accrued liabilities	208				171
	Total accrued liabilities	$	992			$	721
	Other Income (Expense), Net
	Other expense, net consisted of the following (in millions).
			Year Ended December 31,
			2013				2012			2011
	Remeasurement gain on previously held equity interest		$	92			$	—		$	—
	Loss on derivative instruments		(62		)		(2		)	(1		)
	Other (expense) income		(4		)		(1		)	4
	Total other income (expense), net		$	26			$	(3	)	$	3
	Cash proceeds from equity-based plans, net
	Cash proceeds from equity-based plans, net consisted of the following (in millions).
			Year Ended December 31,
			2013				2012			2011
	Tax settlements associated with equity-based plans		$	(22	)		$	(3	)	$	(1	)
	Proceeds from issuance of common stock in connection with equity based plans		51				84			61
	Excess tax benefits from equity-based compensation		44				38			28
	Total cash proceeds from equity-based plans, net		$	73			$	119		$	88

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	RELATED PARTY TRANSACTIONS
	In the normal course of business, the Company enters into transactions with related parties. Related parties include entities that share common directorship, such as Liberty Global plc (“Liberty Global”), Liberty Media Corporation ("Liberty Media") and their subsidiaries and equity method investees (together the “Liberty Group”). Discovery’s Board of Directors includes Dr. Malone, who is Chairman of the Board of Liberty Global and beneficially owns approximately 27% of the aggregate voting power with respect to the election of directors of Liberty Global. Dr. Malone is Chairman of the Board of Liberty Media and beneficially owns approximately 47% of the aggregate voting power with respect to the election of directors of Liberty Media. The majority of the revenue earned from the Liberty Group relates to multi-year network distribution arrangements. The Company also discloses related party revenues for content and services provided to equity method investees, including unconsolidated VIEs. (See Note 4.) Other related party revenue and service charges included in the table below primarily consist of distribution revenue from J:COM earned by Discovery Japan. Following the consolidation of Discovery Japan (see Note 3), revenues earned from J:COM are reflected in related party revenues, while service fees from Discovery Japan, previously disclosed as revenue from equity method investees, are now eliminated upon consolidation and are no longer reflected in related party revenues.
	The table below presents a summary of the transactions with related parties (in millions).
		Year Ended December 31,
		2013			2012			2011
	Revenues and service charges:
	Liberty Group(a)	$	120		$	54		$	49
	Equity method investees(b)	75			94			88
	Other	28			7			11
	Total revenues and service charges	$	223		$	155		$	148
	Interest income(c)	$	35		$	29		$	17
	Expenses	$	(27	)	$	(22	)	$	(34	)
	­
	(a) The increase in revenue from transactions with the Liberty Group is primarily attributable to activity with Virgin Media, Inc. ("Virgin Media") and Charter Communications, Inc. ("Charter"). In June 2013, Liberty Global announced it had completed its acquisition of Virgin Media. In May 2013 Liberty Media completed its equity method investment in Charter; Dr. Malone is on Charter's board of directors. Transactions with Virgin Media and Charter are reported as related party transactions from the date they became related parties.
	(b) The decrease in revenue from transactions with equity method investees is primarily attributable to the consolidation of Discovery Japan and lower content sales to OWN.
	(c) The Company records interest earnings from loans to equity method investees as a component of income (loss) from equity method investees, net, in the consolidated statements of operations. (See Note 4.)
	Of the revenues and other service charges earned from transactions with equity method investees, the Company provided funding of $2 million, $38 million, and $34 million for the years ended December 31, 2013, 2012 and 2011, respectively.
	The table below presents receivables due from related parties (in millions).
		December 31,
		2013			2012
	Receivables	$	41		$	23
	Note receivable (See Note 4.)	$	483		$	482

Commitments_And_Contingencies

Commitments And Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments And Contingencies	'
	COMMITMENTS AND CONTINGENCIES
	Contractual Commitments
	As of December 31, 2013, the Company’s significant contractual commitments, including related payments due by period, were as follows (in millions).
		Leases
	Year Ending December 31,	Operating		Capital			Content		Other		Total
	2014	$	72	$	26		$	392	$	249	$	739
	2015	74		27			84		186		371
	2016	66		25			54		134		279
	2017	60		21			29		113		223
	2018	47		18			7		92		164
	Thereafter	142		119			—		312		573
	Total minimum payments	461		236			566		1,086		2,349
	Amounts representing interest	—		(71		)	—		—		(71		)
	Total	$	461	$	165		$	566	$	1,086	$	2,278
	The Company enters into multi-year lease arrangements for transponders, office space, studio facilities, and other equipment. Leases are not cancelable prior to their expiration.
	Content purchase commitments with third-party producers for content that airs on the Company’s television networks generally require: purchase of a specified number of episodes; payments over the term of the licenses; and include both programs that are available for airing and programs that have not yet been produced, including sports programming arrangements. If the content is never produced, the Company’s commitments expire without obligation. The commitments disclosed above exclude content liabilities recognized on the consolidated balance sheet.
	Other purchase obligations include agreements with certain vendors and suppliers for the purchase of goods and services whereby the underlying agreements are enforceable, legally binding and specify all significant terms. Significant purchase obligations include transmission services, television rating services, marketing research, employment contracts, equipment purchases, and information technology and other services. Some of these contracts do not require the purchase of fixed or minimum quantities and generally may be terminated with a 30-day to 60-day advance notice without penalty. Amounts related to employment contracts include base compensation and do not include compensation contingent on future events.
	In addition to the amounts in the above table, the Company had funding commitments to certain equity method investees of $17 million as of December 31, 2013. The Company may provide uncommitted additional funding to OWN. (See Note 4.) The Company also has an obligation to issue additional preferred shares under the anti-dilution provisions of its outstanding preferred stock. (See Note 13.)
	Contingencies
	Put Rights
	The Company has granted put rights related to certain equity method investments and subsidiaries. Harpo has the right to require the Company to purchase its interest in OWN for fair value at various dates (see Note 4). No amounts have been recorded by the Company for the Harpo put right. TF1 has the right to require the Company to purchase its remaining shares in Eurosport at various dates should Discovery acquire a controlling interest in Eurosport. As of December 31, 2013, the conditional TF1 put right is recorded at fair value of $20 million. (See Note 6.) On January 21, 2014, the Company exercised its call option and entered into an agreement with TF1 to acquire control of Eurosport. (See Note 3.) Upon completion of the transaction, the Company will record redeemable non-controlling interest for TF1's 49% ownership in Eurosport, including the put right, at its estimated fair value as part of the purchase accounting. The fair value of the redeemable noncontrolling interest will significantly exceed the fair value of the pre-acquisition conditional put right. Additionally, J:COM has the right to require the Company to purchase its redeemable interest in Discovery Japan. The Company recorded the J:COM put right as redeemable noncontrolling interest. (See Note 12.)
	Legal Matters
	In the normal course of business, the Company experiences routine claims and legal proceedings. It is the opinion of the Company’s management, based on information available at this time, that none of the current claims and proceedings will have a material adverse effect on the Company’s consolidated financial position, results of operations, or cash flows.
	Guarantees
	The Company has guaranteed a certain level of performance for The Hub Network joint venture. (See Note 4.) There were no guarantees recorded as of December 31, 2013 and December 31, 2012.
	The Company may provide or receive indemnities intended to allocate business transaction risks. Similarly, the Company may remain contingently liable for certain obligations of a divested business in the event that a third party does not fulfill its obligations under an indemnification obligation. The Company records a liability for its indemnification obligations and other contingent liabilities when probable and estimable. There were no material amounts for indemnifications or other contingencies recorded as of December 31, 2013 and 2012.

Reportable_Segments

Reportable Segments	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Reportable Segments	'
	REPORTABLE SEGMENTS
	The Company’s reportable segments are determined based on (i) financial information reviewed by the chief operating decision maker (“CODM”), the Chief Executive Officer, (ii) internal management and related reporting structure and (iii) the basis upon which the CODM makes resource allocation decisions.
	The accounting policies of the reportable segments are the same as the Company’s, except that certain inter-segment transactions that are eliminated at the consolidated level are not eliminated at the segment level as they are treated as a third-party sales transactions in determining segment performance. Inter-segment transactions, which primarily include the purchase of advertising and content between segments, were not significant for the periods presented.
	The Company evaluates the operating performance of its segments based on financial measures such as revenues and adjusted operating income before depreciation and amortization (“Adjusted OIBDA”). Adjusted OIBDA is defined as revenues less costs of revenues and selling, general and administrative expenses excluding: (i) mark-to-market equity-based compensation, (ii) depreciation and amortization, (iii) amortization of deferred launch incentives, (iv) exit and restructuring charges, (v) certain impairment charges and (vi) gains (losses) on business and asset dispositions. The Company uses this measure to assess the operating results and performance of its segments, perform analytical comparisons, identify strategies to improve performance and allocate resources to each segment. The Company believes Adjusted OIBDA is relevant to investors because it allows them to analyze the operating performance of each segment using the same metric management uses. The Company excludes mark-to-market equity-based compensation, exit and restructuring charges, certain impairment charges and gains (losses) on business and asset dispositions from the calculation of Adjusted OIBDA due to their volatility. The Company also excludes depreciation of fixed assets, amortization of intangible assets and deferred launch incentives as these amounts do not represent cash payments in the current reporting period. Certain corporate expenses are excluded from segment results to enable executive management to evaluate segment performance based upon the decisions of segment executives. Adjusted OIBDA should be considered in addition to, but not a substitute for, operating income, net income and other measures of financial performance reported in accordance with GAAP.
	The following tables present summarized financial information for each of the Company’s reportable segments and corporate and inter-segment eliminations (in millions).
	Revenues by Segment
		Year Ended December 31,
		2013			2012			2011
	U.S. Networks	$	2,952		$	2,748		$	2,619
	International Networks	2,474			1,637			1,455
	Education	114			105			95
	Corporate and inter-segment eliminations	(5		)	(3		)	(1		)
	Total revenues	$	5,535		$	4,487		$	4,168
	Adjusted OIBDA by Segment
		Year Ended December 31,
		2013			2012			2011
	U.S. Networks	$	1,708		$	1,622		$	1,495
	International Networks	976			721			645
	Education	27			27			25
	Corporate and inter-segment eliminations	(286		)	(275		)	(249		)
	Total Adjusted OIBDA	$	2,425		$	2,095		$	1,916
	Reconciliation of Total Adjusted OIBDA to Total Operating Income
		Year Ended December 31,
		2013			2012			2011
	Total Adjusted OIBDA	$	2,425		$	2,095		$	1,916
	Amortization of deferred launch incentives	(18		)	(20		)	(52		)
	Mark-to-market equity-based compensation	(136		)	(97		)	(43		)
	Depreciation and amortization	(276		)	(117		)	(117		)
	Restructuring and impairment charges	(16		)	(6		)	(30		)
	Gain on disposition	19			—			129
	Operating income	$	1,998		$	1,855		$	1,803
	Total Assets by Segment
		December 31,
		2013			2012
	U.S. Networks	$	2,978		$	2,878
	International Networks	4,792			1,984
	Education	125			63
	Corporate and inter-segment eliminations	7,084			8,005
	Total assets	$	14,979		$	12,930
	Total assets for corporate and inter-segment eliminations include goodwill that is allocated to the Company's segments to account for goodwill. The presentation of segment assets in the table above is consistent with the financial reports that are reviewed by the Company's CODM. Goodwill by reportable segment is disclosed in Note 9.
	Content Amortization and Impairment Expense by Segment
		Year Ended December 31,
		2013			2012			2011
	U.S. Networks	$	626		$	558		$	567
	International Networks	564			302			270
	Education	3			2			4
	Corporate and inter-segment eliminations	(3		)	3			5
	Total content amortization and impairment expense	$	1,190		$	865		$	846
	Content amortization and impairment expenses are included in costs of revenues on the consolidated statements of operations.
	Revenues by Country
		Year Ended December 31,
		2013			2012			2011
	U.S.	$	3,071		$	2,871		$	2,717
	Non-U.S.	2,464			1,616			1,451
	Total revenues	$	5,535		$	4,487		$	4,168
	Distribution and advertising revenues are attributed to each country based on the location of the Company’s viewers. Other revenues are attributed to each country based on customer location.
	Property and Equipment by Country
		December 31,
		2013			2012
	U.S.	$	261		$	260
	U.K.	115			105
	Other non-U.S.	138			23
	Total property and equipment, net	$	514		$	388
Property and equipment balances are allocated to each country based on the location of the asset.

Selected_Quarterly_Financial_D

Selected Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2013
Selected Quarterly Financial Information [Abstract]	'
Selected Quarterly Financial Data (Unaudited)	'
	SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)
		2013(a)(b)
		1st quarter			2nd quarter			3rd quarter			4th quarter
	Revenues	$	1,156		$	1,467		$	1,375		$	1,537
	Operating income	414			564			499			521
	Income from continuing operations, net of taxes	231			300			256			290
	Income from discontinued operations, net of taxes	—			—			—			—
	Net income	231			300			256			290
	Net income available to Discovery Communications, Inc. stockholders	233			297			255			288
	Basic earnings per share available to Discovery Communications, Inc. stockholders:
	Continuing operations	$	0.64		$	0.83		$	0.72		$	0.82
	Discontinued operations	$	—		$	—		$	—		$	—
	Net Income	$	0.64		$	0.83		$	0.72		$	0.82
	Diluted earnings per share available to Discovery Communications, Inc. stockholders:
	Continuing operations	$	0.63		$	0.82		$	0.71		$	0.81
	Discontinued operations	$	—		$	—		$	—		$	—
	Net Income	$	0.63		$	0.82		$	0.71		$	0.81
		2012(a)(c)
		1st quarter			2nd quarter			3rd quarter			4th quarter
	Revenues	$	1,085		$	1,126		$	1,076		$	1,200
	Operating income	448			488			438			481
	Income from continuing operations, net of taxes	223			294			215			224
	Loss from discontinued operations, net of taxes	(1		)	(1		)	(9		)	—
	Net income	222			293			206			224
	Net income available to Discovery Communications, Inc. stockholders	221			293			205			224
	Basic earnings per share available to Discovery Communications, Inc. stockholders:
	Continuing operations	$	0.58		$	0.77		$	0.58		$	0.61
	Discontinued operations	$	—		$	—		$	(0.02	)	$	—
	Net Income	$	0.57		$	0.77		$	0.55		$	0.61
	Diluted earnings per share available to Discovery Communications, Inc. stockholders:
	Continuing operations	$	0.57		$	0.77		$	0.57		$	0.61
	Discontinued operations	$	—		$	—		$	(0.02	)	$	—
	Net Income	$	0.57		$	0.76		$	0.55		$	0.61
	(a)Income per share amounts for each quarter are calculated independently and may not add to annual amounts.
	(b)On April 9, 2013, the Company acquired SBS Nordic. During the year ended December 31, 2012, the Company acquired Switchover Media and a television station in Dubai. The Company included the operations of each of these acquisitions in the Company's consolidated financial statements as of each of their respective acquisition dates. (See Note 3.)
	(c)On September 17, 2012, the Company sold its postproduction audio business, CSS Studios, LLC, whose results of operations have been reclassified to discontinued operations for all quarterly periods presented. (See Note 3.)

Condensed_Consolidating_Financ

Condensed Consolidating Financial Information	12 Months Ended
	Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items]	'
Condensed Consolidating Financial Information	'
	CONDENSED CONSOLIDATING FINANCIAL INFORMATION
	Overview
	As of December 31, 2013 and 2012, the senior notes outstanding (see Note 10) have been issued by DCL, a wholly-owned subsidiary of the Company, pursuant to a Registration Statement on Form S-3 filed with the U.S. Securities and Exchange Commission ("SEC") (the “Shelf Registration”). The Company fully and unconditionally guarantees the senior notes on an unsecured basis. The Company, DCL, and/or Discovery Communications Holding LLC (“DCH”) (collectively the “Issuers”) may issue additional debt securities under the Shelf Registration that are fully and unconditionally guaranteed by the other Issuers.
	Set forth below are condensed consolidating financial statements presenting the financial position, results of operations and comprehensive income and cash flows of (i) the Company, (ii) DCH, (iii) DCL, (iv) the non-guarantor subsidiaries of DCL on a combined basis, (v) the other non-guarantor subsidiaries of the Company on a combined basis, and (vi) reclassifications and eliminations necessary to arrive at the consolidated financial statement balances for the Company. DCL and the non-guarantor subsidiaries of DCL are the primary operating subsidiaries of the Company. DCL primarily includes the Discovery Channel and TLC networks in the U.S. The non-guarantor subsidiaries of DCL include substantially all of the Company’s other U.S. and international networks, education businesses, and most of the Company’s websites and digital distribution arrangements. The non-guarantor subsidiaries of DCL are wholly-owned subsidiaries of DCL with the exception of certain equity method investments. DCL is a wholly-owned subsidiary of DCH. The Company wholly owns DCH through a 33 1/3% direct ownership interest and a 66 2/3% indirect ownership interest through Discovery Holding Company (“DHC”), a wholly-owned subsidiary of the Company. DHC is included in the other non-guarantor subsidiaries of the Company.
	Basis of Presentation
	Solely for purposes of presenting the condensed consolidating financial statements, investments in the Company’s subsidiaries have been accounted for by their respective parent company using the equity method. Accordingly, in the following condensed consolidating financial statements the equity method has been applied to (i) the Company’s interests in DCH and the other non-guarantor subsidiaries of the Company, (ii) DCH’s interest in DCL, and (iii) DCL’s interests in the non-guarantor subsidiaries of DCL. Inter-company accounts and transactions have been eliminated to arrive at the consolidated financial statement amounts for the Company. The Company’s accounting bases in all subsidiaries, including goodwill and recognized intangible assets, have been “pushed down” to the applicable subsidiaries.
	The operations of certain of the Company’s international subsidiaries are excluded from the Company’s consolidated U.S. income tax return.Tax expense related to permanent differences has been allocated to the entity that created the difference. Tax expense related to temporary differences has been allocated to the entity that created the difference, where identifiable. The remaining temporary differences are allocated to each entity included in the Company’s consolidated U.S. income tax return based on each entity’s relative pretax income. Deferred taxes have been allocated based upon the temporary differences between the carrying amounts of the respective assets and liabilities of the applicable entities.
	The condensed consolidating financial statements should be read in conjunction with the consolidated financial statements of the Company.
	CONDENSED CONSOLIDATING BALANCE SHEET
	December 31, 2013
	(in millions)
		Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
											Subsidiaries of			Guarantor			and			Subsidiaries
											DCL			Subsidiaries of Discovery			Eliminations
	ASSETS
	Current assets:
	Cash and cash equivalents	$	—		$	—		$	123		$	285		$	—		$	—		$	408
	Receivables, net	—			—			449			922			—			—			1,371
	Content rights, net	—			—			12			265			—			—			277
	Deferred income taxes	—			—			31			42			—			—			73
	Prepaid expenses and other current assets	52			—			143			86			—			—			281
	Intercompany trade receivables, net	—			—			286			—			—			(286		)	—
	Total current assets	52			—			1,044			1,600			—			(286		)	2,410
	Investment in and advances to subsidiaries	6,147			6,155			7,135			—			4,112			(23,549		)	—
	Noncurrent content rights, net	—			—			615			1,268			—			—			1,883
	Goodwill	—			—			3,769			3,572			—			—			7,341
	Intangible assets, net	—			—			320			1,245			—			—			1,565
	Equity method investments	—			—			330			757			—			—			1,087
	Other noncurrent assets	—			19			173			521			—			(20		)	693
	Total assets	$	6,199		$	6,174		$	13,386		$	8,963		$	4,112		$	(23,855	)	$	14,979
	LIABILITIES AND EQUITY
	Current liabilities:
	Current portion of debt	$	—		$	—		$	5		$	12		$	—		$	—		$	17
	Other current liabilities	1			6			421			849			—			—			1,277
	Intercompany trade payables, net	—			—			—			286			—			(286		)	—
	Total current liabilities	1			6			426			1,147			—			(286		)	1,294
	Noncurrent portion of debt	—			—			6,343			139			—			—			6,482
	Other noncurrent liabilities	2			—			462			505			21			(20		)	970
	Total liabilities	3			6			7,231			1,791			21			(306		)	8,746
	Redeemable noncontrolling interests	—			—			—			36			—			—			36
	Equity attributable to Discovery Communications, Inc.	6,196			6,168			6,155			7,135			4,091			(23,549		)	6,196
	Noncontrolling interests	—			—			—			1			—			—			1
	Total equity	6,196			6,168			6,155			7,136			4,091			(23,549		)	6,197
	Total liabilities and equity	$	6,199		$	6,174		$	13,386		$	8,963		$	4,112		$	(23,855	)	$	14,979
	CONDENSED CONSOLIDATING BALANCE SHEET
	December 31, 2012
	(in millions)
		Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
											Subsidiaries of			Guarantor			and			Subsidiaries
											DCL			Subsidiaries of Discovery			Eliminations
	ASSETS
	Current assets:
	Cash and cash equivalents	$	—		$	—		$	1,022		$	179		$	—		$	—		$	1,201
	Receivables, net	—			—			406			725			—			(1		)	1,130
	Content rights, net	—			—			7			115			—			—			122
	Deferred income taxes	—			—			33			34			—			7			74
	Prepaid expenses and other current assets	46			—			106			51			—			—			203
	Intercompany trade receivables, net	—			—			96			—			—			(96		)	—
	Total current assets	46			—			1,670			1,104			—			(90		)	2,730
	Investment in and advances to subsidiaries	6,246			6,264			5,305			—			4,178			(21,993		)	—
	Noncurrent content rights, net	—			—			599			956			—			—			1,555
	Goodwill	—			—			3,769			2,630			—			—			6,399
	Intangible assets, net	—			—			332			279			—			—			611
Equity method investments	—			—			339			756			—			—			1,095
Other noncurrent assets	—			20			173			367			—			(20		)	540
Total assets	$	6,292		$	6,284		$	12,187		$	6,092		$	4,178		$	(22,103	)	$	12,930
LIABILITIES AND EQUITY
Current liabilities:
Current portion of debt	$	—		$	—		$	7		$	24		$	—		$	—		$	31
Other current liabilities	—			17			362			537			—			(1		)	915
Intercompany trade payables, net	—			—			—			96			—			(96		)	—
Total current liabilities	—			17			369			657			—			(97		)	946
Noncurrent portion of debt	—			—			5,146			66			—			—			5,212
Other noncurrent liabilities	1			—			408			62			21			(13		)	479
Total liabilities	1			17			5,923			785			21			(110		)	6,637
Equity attributable to Discovery Communications, Inc.	6,291			6,267			6,264			5,307			4,157			(21,995		)	6,291
Noncontrolling interests	—			—			—			—			—			2			2
Total equity	6,291			6,267			6,264			5,307			4,157			(21,993		)	6,293
Total liabilities and equity	$	6,292		$	6,284		$	12,187		$	6,092		$	4,178		$	(22,103	)	$	12,930
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
For the Year Ended December 31, 2013
(in millions)
	Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
										Subsidiaries of			Guarantor			and			Subsidiaries
										DCL			Subsidiaries of Discovery			Eliminations
Revenues	$	—		$	—		$	1,867		$	3,678		$	—		$	(10	)	$	5,535
Costs of revenues, excluding depreciation and amortization	—			—			445			1,252			—			(8		)	1,689
Selling, general and administrative	15			—			267			1,295			—			(2		)	1,575
Depreciation and amortization	—			—			36			240			—			—			276
Restructuring and impairment charges	—			—			1			15			—			—			16
Gain on disposition	—			—			—			(19		)	—			—			(19		)
Total costs and expenses	15			—			749			2,783			—			(10		)	3,537
Operating (loss) income	(15		)	—			1,118			895			—			—			1,998
Equity in earnings of subsidiaries	1,084			1,084			620			—			723			(3,511		)	—
Interest expense	—			—			(299		)	(7		)	—			—			(306		)
Income from equity investees, net	—			—			4			14			—			—			18
Other (expense) income, net	—			—			(53		)	79			—			—			26
Income from continuing operations before income taxes	1,069			1,084			1,390			981			723			(3,511		)	1,736
Benefit from (provision) for income taxes	6			—			(306		)	(359		)	—			—			(659		)
Net income	1,075			1,084			1,084			622			723			(3,511		)	1,077
Net income attributable to noncontrolling interests	—			—			—			—			—			(1		)	(1		)
Net income attributable to redeemable noncontrolling interests	—			—			—			—			—			(1		)	(1		)
Net income available to Discovery Communications, Inc.	$	1,075		$	1,084		$	1,084		$	622		$	723		$	(3,513	)	$	1,075
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
For the Year Ended December 31, 2012
(in millions)
	Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
										Subsidiaries of			Guarantor			and			Subsidiaries
										DCL			Subsidiaries of Discovery			Eliminations
Revenues	$	—		$	—		$	1,796		$	2,704		$	—		$	(13	)	$	4,487
Costs of revenues, excluding depreciation and amortization	—			—			399			830			—			(11		)	1,218
Selling, general and administrative	13			—			279			1,001			—			(2		)	1,291
Depreciation and amortization	—			—			36			81			—			—			117
Restructuring and impairment charges	—			—			2			4			—			—			6
Total costs and expenses	13			—			716			1,916			—			(13		)	2,632
Operating (loss) income	(13		)	—			1,080			788			—			—			1,855
Equity in earnings of subsidiaries	939			965			444			—			645			(2,993		)	—
Interest expense	—			—			(242		)	(6		)	—			—			(248		)
Income (losses) from equity method investees, net	—			—			3			(89		)	—			—			(86		)
Other income (expense), net	13			2			(1		)	—			—			(17		)	(3		)
Income from continuing operations before income taxes	939			967			1,284			693			645			(3,010		)	1,518
Benefit from (provision for) income taxes	4			—			(319		)	(247		)	—			—			(562		)
Income from continuing operations, net of taxes	943			967			965			446			645			(3,010		)	956
Loss from discontinued operations, net of taxes	—			—			—			—			(28		)	17			(11		)
Net income	943			967			965			446			617			(2,993		)	945
Net income attributable to noncontrolling interests	—			—			—			—			—			(2		)	(2		)
Net income available to Discovery Communications, Inc.	$	943		$	967		$	965		$	446		$	617		$	(2,995	)	$	943
CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
For the Year Ended December 31, 2011
(in millions)
	Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
										Subsidiaries of			Guarantor			and			Subsidiaries
										DCL			Subsidiaries of Discovery			Eliminations
Revenues	$	—		$	—		$	1,764		$	2,415		$	—		$	(11	)	$	4,168
Costs of revenues, excluding depreciation and amortization	—			—			423			761			—			(8		)	1,176
Selling, general and administrative	11			—			360			802			—			(2		)	1,171
Depreciation and amortization	—			—			38			80			—			(1		)	117
Restructuring and impairment charges	—			—			6			24			—			—			30
Gain on disposition	—			—			—			(129		)	—			—			(129		)
Total costs and expenses	11			—			827			1,538			—			(11		)	2,365
Operating (loss) income	(11		)	—			937			877			—			—			1,803
Equity in earnings of subsidiaries	1,139			1,141			625			—			760			(3,665		)	—
Interest expense	—			—			(203		)	(5		)	—			—			(208		)
Income (loss) from equity investees, net	—			—			4			(39		)	—			—			(35		)
Other (expense) income, net	—			—			(1		)	4			1			(1		)	3
Income from continuing operations before income taxes	1,128			1,141			1,362			837			761			(3,666		)	1,563
Benefit from (provision for) income taxes	4			—			(221		)	(210		)	—			—			(427		)
Income from continuing operations, net of taxes	1,132			1,141			1,141			627			761			(3,666		)	1,136
Loss from discontinued operations, net of taxes	—			—			—			(1		)	(2		)	—			(3		)
Net income	1,132			1,141			1,141			626			759			(3,666		)	1,133
Net income attributable to noncontrolling interests	—			—			—			—			—			(1		)	(1		)
Net income available to Discovery Communications, Inc.	$	1,132		$	1,141		1,141			$	626		759			$	(3,667	)	$	1,132
CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME
For the Year Ended to December 31, 2013
(in millions)
	Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
										Subsidiaries of			Guarantor			and			Subsidiaries
										DCL			Subsidiaries of Discovery			Eliminations
Net income	$	1,075		$	1,084		$	1,084		$	622		$	723		$	(3,511	)	$	1,077
Other comprehensive income (loss), net of tax:
Currency translation adjustments	(11		)	(11		)	(11		)	(10		)	(7		)	39			(11		)
Derivative and market value adjustments	8			8			8			11			5			(32		)	8
Comprehensive income	1,072			1,081			1,081			623			721			(3,504		)	1,074
Comprehensive income attributable to noncontrolling interests	—			—			—			—			—			(1		)	(1		)
Comprehensive loss attributable to redeemable noncontrolling interests	3			3			3			3			2			(12		)	2
Comprehensive income attributable to Discovery Communications, Inc.	$	1,075		$	1,084		$	1,084		$	626		$	723		$	(3,517	)	$	1,075
CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME
For the Year Ended to December 31, 2012
(in millions)
	Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
										Subsidiaries of			Guarantor			and			Subsidiaries
										DCL			Subsidiaries of Discovery			Eliminations
Net income	$	943		$	967		$	965		$	446		$	617		$	(2,993	)	$	945
Other comprehensive income (loss), net of tax:
Currency translation adjustments	28			28			28			26			19			(101		)	28
Derivative and market value adjustments	(1		)	(1		)	(1		)	(1		)	(1		)	4			(1		)
Comprehensive income	970			994			992			471			635			(3,090		)	972
Comprehensive income attributable to noncontrolling interests	—			—			—			—			—			(2		)	(2		)
Comprehensive income attributable to Discovery Communications, Inc.	$	970		$	994		$	992		$	471		$	635		$	(3,092	)	$	970
CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME
For the Year Ended to December 31, 2011
(in millions)
	Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
										Subsidiaries of			Guarantor			and			Subsidiaries
										DCL			Subsidiaries of Discovery			Eliminations
Net income	$	1,132		$	1,141		$	1,141		$	626		$	759		$	(3,666	)	$	1,133
Other comprehensive income, net of tax:
Currency translation adjustments	10			10			10			10			7			(37		)	10
Comprehensive income	1,142			1,151			1,151			636			766			(3,703		)	1,143
Comprehensive income attributable to noncontrolling interests	—			—			—			—			—			(1		)	(1		)
Comprehensive income attributable to Discovery Communications, Inc.	$	1,142		$	1,151		$	1,151		$	636		$	766		$	(3,704	)	$	1,142
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
For the Year Ended December 31, 2013
(in millions)
	Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
										Subsidiaries of			Guarantor			and			Subsidiaries
										DCL			Subsidiaries of Discovery			Eliminations
Operating Activities
Cash (used in) provided by by operating activities	$	(16	)	$	(11	)	$	288		$	1,024		$	—		$	—		$	1,285
Investing Activities
Purchases of property and equipment	—			—			(19		)	(96		)	—			—			(115		)
Business acquisitions, net of cash acquired	—			—			—			(1,861		)	—			—			(1,861		)
Hedging instruments, net	—			—			(55		)	—			—			—			(55		)
Proceeds from disposition	—			—			—			28			—			—			28
Distribution from equity method investees	—			—			—			47			—			—			47
Investments in and advances to equity method investees, net	—			—			(1		)	(27		)	—			—			(28		)
Other investing activities, net	—			—			—			(3		)	—			—			(3		)
Cash used in investing activities	—			—			(75		)	(1,912		)	—			—			(1,987		)
Financing Activities
Borrowings from long-term debt, net of discount and issuance costs	—			—			1,186			—			—			—			1,186
Principal repayments of capital lease obligations	—			—			(7		)	(25		)	—			—			(32		)
Repurchases of common stock	(1,049		)	—			—			—			—			—			(1,049		)
Repurchase of preferred stock	(256		)	—			—			—			—			—			(256		)
Cash proceeds from equity-based plans, net	73			—			—			—			—			—			73
Inter-company contributions and other financing activities, net	1,248			11			(2,291		)	1,025			—			—			(7		)
Cash provided by (used in) financing activities	16			11			(1,112		)	1,000			—			—			(85		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			(6		)	—			—			(6		)
Net change in cash and cash equivalents	—			—			(899		)	106			—			—			(793		)
Cash and cash equivalents, beginning of period	—			—			1,022			179			—			—			1,201
Cash and cash equivalents, end of period	$	—		$	—		$	123		$	285		$	—		$	—		$	408
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
For the Year Ended December 31, 2012
(in millions)
	Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
										Subsidiaries of			Guarantor			and			Subsidiaries
										DCL			Subsidiaries of Discovery			Eliminations
Operating Activities
Cash (used in) provided by operating activities	$	(18	)	$	12		$	307		$	798		$	—		$	—		$	1,099
Investing Activities
Purchases of property and equipment	—			—			(18		)	(58		)	(1		)	—			(77		)
Business acquisitions, net of cash acquired	—			—			—			(149		)	—			—			(149		)
Distributions from equity method investees	—			—			—			17			—			—			17
Investments in and advances to equity method investees, net	—			—			—			(404		)	—			—			(404		)
Other investing activities, net	—			—			(31		)	—			1			—			(30		)
Cash used in investing activities	—			—			(49		)	(594		)	—			—			(643		)
Financing Activities
Borrowings from long-term debt, net of discount and issuance costs	—			—			981			—			—			—			981
Principal repayments of capital lease obligations	—			—			(6		)	(16		)	—			—			(22		)
Repurchases of common stock	(1,380		)	—			—			—			—			—			(1,380		)
Cash proceeds from equity-based plans, net	119			—			—			—			—			—			119
Inter-company contributions and other financing activities, net	1,279			(12		)	(1,175		)	(94		)	(1		)	—			(3		)
Cash provided by (used in) financing activities	18			(12		)	(200		)	(110		)	(1		)	—			(305		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			2			—			—			2
Net change in cash and cash equivalents	—			—			58			96			(1		)	—			153
Cash and cash equivalents, beginning of period	—			—			964			83			1			—			1,048
Cash and cash equivalents, end of period	$	—		$	—		$	1,022		$	179		$	—		$	—		$	1,201
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
For the Year Ended December 31, 2011
(in millions)
	Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
										Subsidiaries of			Guarantor			and			Subsidiaries
										DCL			Subsidiaries of Discovery			Eliminations
Operating Activities
Cash provided by (used in) operating activities	$	68		$	(1	)	$	421		$	613		$	(1	)	$	—		$	1,100
Investing Activities
Purchases of property and equipment	—			—			(2		)	(55		)	(1		)	—			(58		)
Business acquisitions, net of cash acquired	—			—			—			(26		)	—			—			(26		)
Distributions from equity method investees	—			—			—			21			—			—			21
Investments in and advances to equity method investees, net	—			—			—			(151		)	—			—			(151		)
Cash used in investing activities	—			—			(2		)	(211		)	(1		)	—			(214		)
Financing Activities
Borrowings from long-term debt, net of discount and issuance costs	—			—			639			—			—			—			639
Principal repayments of capital lease obligations	—			—			(6		)	(14		)	—			—			(20		)
Repurchases of common stock	(997		)	—			—			—			—			—			(997		)
Cash proceeds from equity-based plans, net	88			—			—			—			—			—			88
Inter-company contributions and other financing activities, net	841			1			(457		)	(391		)	(1		)	—			(7		)
Cash (used in) provided by financing activities	(68		)	1			176			(405		)	(1		)	—			(297		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			(7		)	—			—			(7		)
Net change in cash and cash equivalents	—			—			595			(10		)	(3		)	—			582
Cash and cash equivalents, beginning of period	—			—			369			93			4			—			466
Cash and cash equivalents, end of period	$	—		$	—		$	964		$	83		$	1		$	—		$	1,048

Summary_Of_Significant_Account1

Summary Of Significant Accounting Policies (Policy)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Accounting and Reporting Pronouncements Adopted	'
	Accounting and Reporting Pronouncements Adopted
	Offsetting Assets and Liabilities
	In January 2011, the Financial Accounting Standards Board (“FASB”) issued guidance expanding the disclosure requirements for financial instruments that are offset in the balance sheet or subject to a master netting arrangement or similar agreement. In January 2013, the FASB issued additional guidance clarifying that the scope of the guidance applies only to derivatives, repurchase agreements and reverse purchase agreements, and securities borrowing and securities lending transactions. The adoption of the new guidance, effective January 1, 2013, did not have a material impact on the Company's consolidated financial statements. (See Note 11.)
	Comprehensive Income
	In January 2013, the FASB amended its guidance on the presentation of comprehensive income. Under the amended guidance, an entity must present information regarding reclassification adjustments from accumulated other comprehensive income in a single note or on the face of the financial statements. This is required for both annual and interim reporting. The Company retrospectively adopted the new guidance effective January 1, 2013 and elected to present reclassification adjustments from accumulated other comprehensive income in a single note. (See Note 13.)
Accounting and Reporting Pronouncements Not Yet Adopted	'
	Accounting and Reporting Pronouncements Not Yet Adopted
	Presentation of Unrecognized Tax Benefits
	In July 2013, the FASB issued guidance stating that a liability related to an unrecognized tax benefit should be offset against a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward if such settlement is required or expected in the event the uncertain tax position is disallowed. The new guidance is effective on a prospective basis for annual and interim periods beginning after December 15, 2013, but early adoption and retrospective application are permitted. The Company is assessing the impact of this guidance on its consolidated financial statements.
Use Of Estimates	'
	Use of Estimates
	The preparation of financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates, judgments and assumptions that affect the amounts and disclosures reported in the consolidated financial statements and accompanying notes. Management continually re-evaluates its estimates, judgments and assumptions and management’s assessments could change. Actual results may differ materially from those estimates.
	Estimates inherent in the preparation of the consolidated financial statements include accounting for asset impairments, revenue recognition, allowances for doubtful accounts, content rights, depreciation and amortization, business combinations, equity-based compensation, income taxes, other financial instruments, contingencies, and the determination of whether the Company is the primary beneficiary of entities in which it holds variable interests.
Consolidation	'
	Consolidation
	The Company has ownership and other interests in various entities, including corporations, partnerships, and limited liability companies. For each such entity, the Company evaluates its ownership and other interests to determine whether it should consolidate the entity or account for its ownership interest as an investment. As part of its evaluation, the Company initially determines whether the entity is a variable interest entity ("VIE") and, if so, whether it is the primary beneficiary of the VIE. An entity is generally a VIE if it meets any of the following criteria: (i) the entity has insufficient equity to finance its activities without additional subordinated financial support from other parties, (ii) the equity investors cannot make significant decisions about the entity’s operations, or (iii) the voting rights of some investors are not proportional to their obligations to absorb the expected losses of the entity or receive the expected returns of the entity and substantially all of the entity’s activities involve or are conducted on behalf of the investor with disproportionately few voting rights. The Company consolidates VIEs for which it is the primary beneficiary, regardless of its ownership or voting interests. The primary beneficiary is the party involved with the VIE that (i) has the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance, and (ii) has the obligation to absorb losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. The Company periodically makes judgments in determining whether entities in which it invests are VIEs. If so, the Company makes judgments to determine whether it is the primary beneficiary and is thus required to consolidate the entity.
	If it is concluded that an entity is not a VIE, then the Company considers its proportional voting interests in the entity. The Company consolidates majority-owned subsidiaries in which a controlling interest is maintained. Controlling interest is determined by majority ownership and the absence of significant third-party participating rights.
	Ownership interests in entities for which the Company has significant influence and are not consolidated under the Company’s consolidation policy are accounted for as equity method investments. Related party transactions between the Company and its equity method investees have not been eliminated. (See Note 20.)
Investments	'
	Investments
	The Company holds investments in equity method investees and other marketable securities. Investments in equity method investees are those for which the Company has the ability to exercise significant influence but does not control and is not the primary beneficiary. Significant influence typically exists if the Company has a 20% to 50% ownership interest in the venture unless persuasive evidence to the contrary exists. Under this method of accounting, the Company records its proportionate share of the net earnings or losses of equity method investees and a corresponding increase or decrease to the investment balances. Cash payments to equity method investees such as additional investments, loans and advances and expenses incurred on behalf of investees, as well as payments from equity method investees such as dividends, distributions and repayments of loans and advances are recorded as adjustments to investment balances. The Company evaluates its equity method investments for impairment whenever events or changes in circumstances indicate that the carrying amounts of such investments may not be recoverable. (See Asset Impairment Analysis below.)
	Investments in entities over which the Company has no control or significant influence and is not the primary beneficiary, and investments in other securities, are accounted for at fair value or cost. Investments in equity securities with readily determinable fair values are accounted for at fair value, based on quoted market prices, and classified as either trading securities or available-for-sale securities. For investments classified as trading securities, which include securities held in a separate trust in connection with the Company’s deferred compensation plan, unrealized and realized gains and losses related to the investment and corresponding liability are recorded in earnings. For investments classified as available-for-sale securities, which include investments in mutual funds, unrealized gains and losses are recorded net of income taxes in other comprehensive income (loss) until the security is sold or considered impaired. If declines in the value of available-for-sale securities are determined to be other than temporary, a loss is recorded in earnings in the current period. Impairments are determined based on, among other factors, the length of time the fair value of the investment has been less than the carrying value, future business prospects for the investee, and information regarding market and industry trends for the investee’s business, if available. For purposes of computing realized gains and losses, the Company determines cost on a specific identification basis.
Foreign Currency	'
	Foreign Currency
	The reporting currency of the Company is the U.S. dollar. The functional currency of most of the Company’s international subsidiaries is the local currency. Assets and liabilities, including intercompany balances for which settlement is anticipated in the foreseeable future, denominated in foreign currencies are translated at exchange rates in effect at the balance sheet date. Foreign currency equity balances are translated at historical rates. Revenues and expenses denominated in foreign currencies are translated at average exchange rates for the respective periods. Foreign currency translation adjustments are recorded in accumulated other comprehensive income.
	Transactions denominated in currencies other than subsidiaries’ functional currencies are recorded based on exchange rates at the time such transactions arise. Changes in exchange rates with respect to amounts recorded in the consolidated balance sheets related to these items will result in unrealized foreign currency transaction gains and losses based upon period-end exchange rates. The Company also records realized foreign currency transaction gains and losses upon settlement of the transactions. Foreign currency transaction gains and losses are included in operating income and totaled a gain of $24 million, a loss of $4 million, and a loss of $12 million for 2013, 2012 and 2011, respectively.
	With the exception of certain material transactions, the cash flows from the Company's operations in foreign countries are translated at the weighted average rate for the applicable period in the consolidated statements of cash flows. The impacts of material transactions generally are recorded at the applicable spot rates in the consolidated statements of operations and cash flows. The effects of exchange rates on cash balances held in foreign currencies are separately reported in the Company's consolidated statements of cash flows.
Discontinued Operations	'
	Discontinued Operations
	In determining whether a group of assets disposed of should be presented as a discontinued operation, the Company initially makes a determination as to whether the group of assets comprises a component of the entity, which requires clearly distinguishable cash flows from the rest of the entity. The Company also determines whether the cash flows associated with the component have been or will be significantly eliminated from the ongoing operations of the Company and whether the Company will have significant continuing involvement in the component's operations. If the discontinued operations criteria have been achieved, the results of operations of the component being disposed of, as well as any gain or loss on the disposal transaction, are aggregated for presentation apart from continuing operating results of the Company in the consolidated financial statements.
Cash And Cash Equivalents	'
	Cash and Cash Equivalents
	Cash and cash equivalents include cash on hand and highly liquid investments with original maturities of ninety days or less.
Accounts Receivable	'
	Accounts Receivable
	Accounts receivable include amounts billed and currently due from customers and are presented net of an estimate for uncollectible accounts. The Company evaluates outstanding receivables to assess collectibility. In performing this evaluation, the Company analyzes market trends, economic conditions, the aging of receivables and customer specific risks. Using this information, the Company reserves an amount that it estimates may not be collected. The Company does not require collateral with respect to trade receivables.
Content Rights	'
	Content Rights
	Content rights principally consist of television series and specials. Content aired on the Company’s television networks is sourced from wholly-owned production companies and a wide range of third-party producers and is classified either as produced, coproduced or licensed. Substantially all produced content includes programming for which the Company has engaged third parties to develop and produce, and it owns most or all rights. The Company collaborates with third parties to finance and develop coproduced content and it retains significant rights to exploit the programs. Licensed content is comprised of films or series that have been previously produced by third parties and the Company retains limited airing rights over a contractual term. Capitalized content costs are stated at the lower of cost less accumulated amortization or net realizable value.
	Costs of produced and coproduced content consist of development costs, acquired production costs, direct production costs, certain production overhead costs and participation costs. Costs incurred for produced and coproduced content are capitalized if the Company has previously generated revenues from similar content in established markets and the content will be used and revenues will be generated for a period of at least one year. The Company’s coproduction arrangements generally provide for the sharing of production cost. The Company records its costs, but does not record the costs borne by the other party as the Company does not share any associated economics of exploitation. Program licenses typically have fixed terms and require payments during the term of the license. The cost of licensed content is capitalized when the programs are delivered or the Company has paid for the programs. The Company pays in advance for television series, specials, films and sports rights. Development costs for programs that the Company has determined will not be produced are written off. Additionally, distribution, advertising, marketing, general and administrative costs are expensed as incurred.
	Amortization of content rights is recognized based on the proportion that current estimated revenues bear to the estimated remaining total lifetime revenues, which results in either an accelerated method or a straight-line method over the estimated useful lives of up to five years. Amortization of capitalized costs for produced and coproduced content begins when a program has been aired. Amortization of capitalized costs for licensed content commences when the license period begins and the program is available for use or in the case of sporting events, when the event has aired.
	The Company periodically evaluates the net realizable value of content by considering expected future revenue generation. Estimates of future revenues consider historical airing patterns and future plans for airing content, including any changes in strategy. Estimated future revenues may differ from actual revenues based on changes in expectations related to market acceptance, network affiliate fee rates, advertising demand, the number of cable and satellite television subscribers receiving the Company’s networks, and program usage. Accordingly, the Company continually reviews revenue estimates and planned usage and revises its assumptions if necessary. Given the significant estimates and judgments involved, actual demand or market conditions may be less favorable than those projected, requiring a write-down to net realizable value. All produced and coproduced content is classified as long-term. The portion of the unamortized licensed content balance that will be amortized within one year is classified as a current asset.
Property And Equipment	'
	Property and Equipment
	Property and equipment are stated at cost less accumulated depreciation and impairments. The cost of property and equipment acquired under capital lease arrangements represents the lesser of the present value of the minimum lease payments or the fair value of the leased asset as of the inception of the lease. Substantially all capitalized software costs are for internal use. Capitalization of software costs occurs during the application development stage. Software costs incurred during the preliminary project and post implementation stages are expensed as incurred. Repairs and maintenance expenditures that do not enhance the use or extend the life of property and equipment are expensed as incurred.
	Depreciation for most property and equipment is recognized using the straight-line method over the estimated useful lives of the assets, which is 15 to 39 years for buildings, three to five years for broadcast equipment, two to five years for capitalized software costs and three to five years for office equipment, furniture, fixtures and other property and equipment. Assets acquired under capital lease arrangements and leasehold improvements are amortized using the straight-line method over the lesser of the estimated useful lives of the assets or the terms of the related leases, which is one to 15 years. Depreciation commences when property or equipment is ready for its intended use.
Goodwill And Indefinite-Lived Intangible Assets	'
	Goodwill and Indefinite-lived Intangible Assets
	Goodwill is allocated to the Company's reporting units, which are its operating segments or one level below its operating segments. The Company evaluates goodwill and other indefinite-lived intangible assets for impairment annually as of November 30 and earlier upon the occurrence of substantive changes in circumstances such as a significant deterioration in economic conditions, industry changes, increases in costs, declining cash flows, or a decline in market capitalization. If the Company believes that as a result of its qualitative assessment it is more likely than not that the fair value of a reporting unit or other indefinite-lived intangible asset is greater than its carrying amount, the quantitative impairment test is not required.
	Following a qualitative assessment indicating that it is not more likely than not that the fair value of the reporting unit exceeds its carrying amount, goodwill impairment is determined using a two-step quantitative process. The first step of the process is to compare the fair value of a reporting unit with its carrying amount, including goodwill. In performing the first step, the Company determines the fair value of a reporting unit by using a combination of a discounted cash flow (“DCF”) analysis and, if possible, market-based valuation methodologies. Determining fair value requires the Company to make judgments about appropriate discount rates, perpetual growth rates, relevant comparable company earnings multiples and the amount and timing of expected future cash flows. The cash flows employed in the DCF analysis are based on the Company’s budget, long-term business plan, and recent operating performance. Discount rate assumptions are based on an assessment of the risk inherent in future cash flows of the respective reporting unit and market conditions. In assessing the reasonableness of its determined fair values, the Company may also evaluate its results against other value indicators such as comparable company public trading values, research analyst estimates and values observed in market transactions.
	If the fair value of a reporting unit exceeds its carrying amount, goodwill of the reporting unit is not impaired and the second step of the quantitative impairment test is not necessary. If the carrying amount of a reporting unit exceeds its fair value, the second step of the quantitative goodwill impairment test is required to be performed to measure the amount of impairment loss, if any. The second step of the quantitative goodwill impairment test compares the implied fair value of the reporting unit’s goodwill with the carrying amount of that goodwill. The implied fair value of goodwill is determined in the same manner as the amount of goodwill recognized in a business combination. In other words, the estimated fair value of the reporting unit’s identifiable net assets excluding goodwill is compared to the fair value of the reporting unit as if the reporting unit had been acquired in a business combination and the fair value of the reporting unit was the purchase price paid. If the carrying amount of the reporting unit’s goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess.
	Following a qualitative assessment indicating that it is not more likely than not that the fair value of the indefinite lived intangible asset exceeds its carrying amount, impairment of other intangible assets not subject to amortization involves a comparison of the estimated fair value of the intangible asset with its carrying value. If the carrying value of the intangible asset exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. The estimates of fair value of intangible assets not subject to amortization are determined using a DCF valuation analysis, a market-based valuation analysis, or both. Determining fair value requires the exercise of judgments about appropriate discount rates, perpetual growth rates, relevant comparable company earnings multiples, when available, and the amount and timing of expected future cash flows.
Long-lived Assets	'
	Long-lived Assets
	Long-lived assets such as amortizing trademarks, customer lists, other intangible assets, and property and equipment are not required to be tested for impairment annually. Instead, long-lived assets are tested for impairment whenever circumstances indicate that the carrying amount of the asset may not be recoverable, such as when the disposal of such assets is likely or there is an adverse change in the market involving the business employing the related assets. If an impairment analysis is required, the impairment test employed is based on whether the Company’s intent is to hold the asset for continued use or to hold the asset for sale. If the intent is to hold the asset for continued use, the impairment test first requires a comparison of undiscounted future cash flows to the carrying value of the asset. If the carrying value of the asset exceeds the undiscounted cash flows, the asset would not be deemed to be recoverable. Impairment would then be measured as the excess of the asset’s carrying value over its fair value. Fair value is typically determined by discounting the future cash flows associated with that asset. If the intent is to hold the asset for sale and certain other criteria are met, the impairment test involves comparing the asset’s carrying value to its fair value less costs to sell. To the extent the carrying value is greater than the asset’s fair value less costs to sell, an impairment loss is recognized in an amount equal to the difference. Significant judgments used for long-lived asset impairment assessments include determining whether events or circumstances indicate that the carrying amount of the asset may not be recoverable, determining the future cash flows for the assets involved and determining the proper discount rate to be applied in determining fair value.
Equity Method Investments	'
	Equity Method Investments
	Equity method investments are reviewed for impairment on a quarterly basis. An equity method investment is written down to fair value if there is evidence of a loss in value which is other than temporary. The Company may estimate the fair value of its equity method investments by considering recent investee equity transactions, discounted cash flow analysis, recent operating results, comparable public company operating cash flow multiples and in certain situations, balance sheet liquidation values. If the fair value of the investment has dropped below the carrying amount, management considers several factors when determining whether an other-than-temporary decline has occurred, such as: the length of the time and the extent to which the estimated fair value or market value has been below the carrying value, the financial condition and the near-term prospects of the investee, the intent and ability of the Company to retain its investment in the investee for a period of time sufficient to allow for any anticipated recovery in market value and general market conditions. The estimation of fair value and whether an other-than temporary impairment has occurred requires the application of significant judgment and future results may vary from current assumptions. (See Note 4.)
Derivative Instruments	'
	Derivative Instruments
	The Company uses derivative financial instruments from time to time to modify its exposure to market risks from changes in interest rates and foreign exchange rates. The Company may designate derivative instruments as cash flow hedges or fair value hedges, as appropriate. The Company records all derivative instruments at fair value on a gross basis. For those derivative instruments designated as cash flow hedges that qualify for hedge accounting, gains or losses on the effective portion of derivative instruments are initially recorded in accumulated other comprehensive income on the consolidated balance sheets and reclassified to the same account on the consolidated statements of operations in which the hedged item is recognized. The Company may also enter into derivative instruments that are not designated as hedges and do not qualify for hedge accounting. These contracts are intended to mitigate economic exposures of the Company. The changes in fair value of derivatives not designated as hedges and the ineffective portion of derivatives designated as hedging instruments are immediately recorded in other income (expense), net.
Treasury Stock	'
	Treasury Stock
	When stock is acquired for purposes other than formal or constructive retirement, the purchase price of the acquired stock is recorded in a separate treasury stock account which is separately reported as a reduction of equity.
	When stock is retired or purchased for constructive retirement, the purchase price is initially recorded as a reduction to the par value of the shares repurchased, with any excess purchase price over par value recorded as a reduction to additional paid-in capital related to the series of shares repurchased and any remainder excess purchase price recorded as a reduction to retained earnings. If the purchase price exceeds the amounts allocated to par value and additional paid-in capital related to the series of shares repurchased and retained earnings, the remainder is allocated to additional paid-in capital related to other series of shares.
Revenue Recognition	'
	Revenue Recognition
	The Company generates revenues principally from (i) fees charged to distributors of its network content, which include cable, direct-to-home ("DTH") satellite, telecommunications and digital service providers, (ii) advertising sold on its television networks and websites, and (iii) transactions for curriculum-based products and services, affiliate and advertising sales representation services and the licensing of its brands for consumer products.
	Revenue is recognized when persuasive evidence of a sales arrangement exists, services are rendered or delivery occurs, the sales price is fixed or determinable and collectability is reasonably assured. Revenues do not include taxes collected from customers on behalf of taxing authorities such as sales tax and value-added tax. However, certain revenues include taxes that customers pay to taxing authorities on the Company’s behalf, such as foreign withholding tax. Revenue recognition for each source of revenue is also based on the following policies.
	Distribution
	Cable operators, DTH satellite and telecommunications service providers typically pay a per-subscriber fee for the right to distribute the Company’s programming under the terms of distribution contracts. The majority of the Company’s distribution fees are collected monthly throughout the year. Distribution revenues from cable operators and DTH service providers are recognized over the term of the contracts based on contracted programming rates and reported subscriber levels. The amount of distribution fees due to the Company are reported by distributors based on actual subscriber levels. Such information is generally not received until after the close of the reporting period. In these cases, the Company estimates the number of subscribers receiving the Company’s programming. Historical adjustments to recorded estimates have not been material.
	Distribution revenues are recognized net of incentives the Company provides to operators in exchange for carrying its networks. Incentives typically include cash payments to operators (“launch incentives”), providing the channel to the distributor for free for a predetermined length of time, or both. Launch incentives are capitalized as assets upon launch of the Company’s network by the operator and are amortized on a straight-line basis as a reduction of revenue over the term of the contract, including free periods. In instances where the distribution agreement is extended prior to the expiration of the original term, the Company evaluates the economics of the extended term and, if it is determined that the launch asset continues to benefit the Company over the extended term, then the Company will adjust the amortization period of the remaining launch incentives accordingly. Other incentives are recognized as a reduction of revenue as incurred. Amortization of launch incentives was $18 million, $20 million and $52 million for 2013, 2012 and 2011, respectively.
	Revenues associated with digital distribution arrangements are recognized when the Company transfers control of the content and the rights to distribute the content to the customer. If multiple programs are included in the arrangement, the Company allocates the fee to each program based on its relative fair value.
	Advertising
	Advertising revenues are principally generated from the sale of bundled commercial time on television networks and websites. Advertising revenues are recognized net of agency commissions in the period advertising spots are aired. A substantial portion of the advertising contracts in the U.S. guarantee the advertiser a minimum audience level that either the program in which their advertisements are aired or the advertisement will reach. Revenues are recognized for the actual audience level delivered. The Company provides the advertiser with additional advertising spots in future periods if the guaranteed audience level is not delivered. Revenues are deferred for any shortfall in the guaranteed audience level until the guaranteed audience level is delivered or the rights associated with the guarantee lapse. Audience guarantees are initially developed internally based on planned programming, historical audience levels, the success of pilot programs, and market trends. In the U.S., actual audience and delivery information is published by independent ratings services. In certain instances, the independent ratings information is not received until after the close of the reporting period. In these cases, reported advertising revenue and related deferred revenue are based upon the Company’s estimates of the audience level delivered. Historical adjustments to recorded estimates have not been material.
	Advertising revenues from online properties are recognized as impressions are delivered or the services are performed.
	Other
	Revenues for curriculum-based services are recognized ratably over the contract term. Royalties from brand licensing arrangements are earned as products are sold by the licensee.
Deferred Revenues	'
	Deferred Revenues
	Deferred revenues primarily consist of cash received for television advertising for which the advertising spots have not yet aired and advanced billings to subscribers for access to the Company’s curriculum-based streaming services. The amounts classified as current are expected to be earned within the next year.
Equity-Based Compensation Expense	'
	Equity-Based Compensation Expense
	The Company has incentive plans under which unit awards, stock appreciation rights (“SARs”), stock options, performance based restricted stock units (“PRSUs”) and service based restricted stock units (“RSUs”) are issued.
	The Company measures the cost of employee services received in exchange for unit awards and SARs based on the fair value of the award less estimated forfeitures. Because unit awards and SARs are cash-settled, the Company remeasures the fair value of these awards each reporting period until settlement. Compensation expense, including changes in fair value, for unit awards and SARs is recognized during the vesting period in proportion to the requisite service that has been rendered as of the reporting date. For grants of unit awards with graded vesting, the Company measures fair value separately for each vesting tranche and records compensation expense for all vesting tranches of each award. For grants of SARs with graded vesting, the Company measures fair value and records compensation expense separately for each vesting tranche.
	Compensation expense for stock options is measured based on the fair value on the date of grant less estimated forfeitures. Compensation expense for stock options is recognized ratably during the vesting period.
	The fair values of unit awards, SARs and stock options are estimated using the Black-Scholes option-pricing model. Because the Black-Scholes option-pricing model requires the use of subjective assumptions, changes in these assumptions can materially affect the fair value of awards. For unit awards, the expected term is the period from the grant date to the vesting date of the award, and for SARs the expected term is the period from the grant date to the end of the contractual term of the award unless the terms of the award allow for cash-settlement automatically on the date the awards vest, in which case the vesting date is used. For stock options, the expected term is estimated to be the period from the date of grant through the mid-point between the vesting date and the end of the contractual term of the award. Expected volatility is based on a combination of implied volatilities from traded options on the Company’s common stock and historical realized volatility of the Company’s common stock. The dividend yield is assumed to be zero because the Company has no present intention to pay dividends. The risk-free interest rate is based on U.S. Treasury zero-coupon issues with a remaining term equal to the expected term of the award.
	Vesting for certain PRSUs is subject to satisfying objective operating performance conditions, while vesting for other PRSUs is based on the achievement of a combination of objective and subjective operating performance conditions. Compensation expense for PRSUs that vest based on achieving objective operating performance conditions is measured based on the fair value of the Company’s Series A common stock on the date of grant less estimated forfeitures. Compensation expense for PRSUs that vest based on achieving subjective operating performance conditions is remeasured at fair value of the Company’s Series A common stock less estimated forfeitures each reporting period until the date of vesting. Compensation expense for all PRSUs is recognized ratably during the vesting period only when it is probable that the operating performance conditions will be achieved. The Company records a cumulative adjustment to compensation expense for PRSUs if there is a change in the determination of whether or not it is probable the operating performance conditions will be achieved.
	The Company measures the cost of employee services received in exchange for RSUs based on the fair value of the Company’s Series A common stock on the date of grant less estimated forfeitures. Compensation expense for RSUs is recognized ratably during the vesting period.
	When recording compensation cost for equity-based awards, the Company is required to estimate the number of awards granted that are expected to be forfeited. In estimating forfeitures, the Company considers historical and expected forfeiture rates and anticipated events. On an ongoing basis, the Company adjusts compensation expense based on actual forfeitures and revises the forfeiture rate as necessary.
	On May 17, 2011, the Company’s stockholders approved the Discovery Communications, Inc. 2011 Employee Stock Purchase Plan (the “DESPP”), which enables eligible employees to purchase shares of the Company’s common stock through payroll deductions or other permitted means. The Company recognizes the fair value of the discount associated with shares purchased under the plan as equity-based compensation expense.
	Equity-based compensation expense is recorded as a component of selling, general and administrative expense. The Company classifies the intrinsic value of unit awards and SARs that are vested or will become vested within one year as a current liability.
	Excess tax benefits realized from the exercise of stock options and vested RSUs, PRSUs and the DESPP are reported as cash inflows from financing activities rather than as a reduction of taxes paid in cash flows from operating activities on the consolidated statements of cash flows.
Advertising Costs	'
	Advertising Costs
	Advertising costs are expensed as incurred. Advertising costs paid to third parties totaled $156 million, $124 million and $132 million for 2013, 2012 and 2011, respectively.
Income Taxes	'
	Income Taxes
	Income taxes are recorded using the asset and liability method of accounting for income taxes. Deferred income taxes reflect the net tax effect of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Deferred taxes are measured using rates the Company expects to apply to taxable income in years in which those temporary differences are expected to reverse. A valuation allowance is provided for deferred tax assets if it is more likely than not such assets will be unrealized.
	From time to time, the Company engages in transactions in which the tax consequences may be uncertain. Significant judgment is required in assessing and estimating the tax consequences of these transactions. The Company prepares and files tax returns based on its interpretation of tax laws and regulations. In the normal course of business, the Company's tax returns are subject to examination by various taxing authorities. Such examinations may result in future tax and interest assessments by these taxing authorities.
	In determining the Company's tax provision for financial reporting purposes, the Company establishes a reserve for uncertain tax positions unless the Company determines that such positions are more likely than not to be sustained upon examination based on their technical merits, including the resolution of any appeals or litigations processes. There is considerable judgment involved in determining whether positions taken on the Company's tax returns are more likely than not to be sustained. The Company adjusts its tax reserve estimates periodically because of ongoing examinations by, and settlements with, various taxing authorities, as well as changes in tax laws, regulations and interpretations.
Concentrations Risk	'
	Concentrations Risk
	Customers
	The Company has long-term contracts with distributors around the world, including the largest operators in the U.S. and major international distributors. In the U.S., approximately 90% of distribution revenues come from the top 10 distributors. Outside of the U.S., approximately 50% of distribution revenue comes from the top 10 distributors. Agreements in place with the major cable and satellite operators in the U.S. expire at various times beginning in 2014 through 2020. Failure to secure a renewal or a renewal on less favorable terms may have a material adverse effect on the Company’s financial condition and results of operations. Not only could the Company experience a reduction in affiliate revenue, but it could also experience a reduction in advertising revenue which is impacted by affiliate subscriber levels and viewership.
	No individual customer accounted for more than 10% of total consolidated revenues for 2013, 2012 and 2011. The Company’s trade receivables do not represent a significant concentration of credit risk as of December 31, 2013 or 2012 due to the wide variety of customers and markets in which the Company operates and their dispersion across many geographic areas.
	Financial Institutions
	Cash and cash equivalents are maintained with several financial institutions. The Company has deposits held with banks that exceed the amount of insurance provided on such deposits. Generally, these deposits may be redeemed upon demand and are maintained with financial institutions of reputable credit and, therefore, bear minimal credit risk.
	Lender Counterparties
	There is a risk that the counterparties associated with the Company’s revolving credit facility will not be available to fund as obligated under the terms of the facility. If funding under the revolving credit facility is unavailable, the Company may have to acquire a replacement credit facility from a different counterparty at a higher cost or may be unable to find a suitable replacement. Typically, the Company seeks to manage these exposures by contracting with experienced large financial institutions and monitoring the credit quality of its lenders. As of December 31, 2013, the Company did not anticipate nonperformance by any of its counterparties.

Redeemable_Noncontrolling_Inte1

Redeemable Noncontrolling Interest (Policies)	12 Months Ended
	Dec. 31, 2013
Redeemable Noncontrolling Interest (Policies) [Abstract]	'
Redeemable noncontrolling interest [Policy Text Block]	'
	Redeemable noncontrolling interests reflected as of the balance sheet date are the greater of the noncontrolling interest balances adjusted for comprehensive income items or the redemption values remeasured at the period end foreign exchange rates (i.e. the "floor"). Adjustments to the carrying amount of redeemable noncontrolling interests to redemption value as a result of changes in exchange rates are reflected in currency translation adjustments, a component of other comprehensive (loss) income; however, such currency translation adjustments to redemption value are allocated to Discovery stockholders only. Redeemable noncontrolling interest adjustments of redemption value to the floor are reflected in retained earnings and as an adjustment to income from continuing operations available to Discovery Communications, Inc. stockholders in the calculation of earnings per share. (See Note 18.)

Earnings_Per_Share_Policies

Earnings Per Share (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Earnings Per Share, Policy [Policy Text Block]	'
	Earnings per share is calculated by dividing the applicable income (loss) available to Discovery Communications, Inc. stockholders from continuing and discontinued operations, as applicable, by the weighted average number of shares outstanding. The Company began applying the two-class method for calculating earnings per share in the first quarter of 2013 as a result of the addition of redeemable noncontrolling interests. (See Note 12.) The two-class method calculates earnings per share by distinguishing between the classes of securities based on the proportionate participation rights of each award type in the Company's undistributed income. Adjustments to the carrying amount of redeemable noncontrolling interest to redemption value, excluding currency translation adjustments, are reflected in earnings per share using the two-class method, similar to the treatment of a dividend.
	At December 31, 2013, 2012 and 2011, the weighted average number of basic and diluted shares outstanding included the Company’s outstanding Series A, Series B and Series C common stock, as well as its outstanding Series A and Series C convertible preferred stock, as the holder of each common and preferred series legally participates equally in any per share distributions. Diluted earnings per share adjusts basic earnings per share for the dilutive effect of the assumed exercise of outstanding equity awards using the treasury stock method. Only outstanding PRSUs whose performance targets have been achieved as of the last day of the most recent period are included in the dilutive effect calculation.

Reportable_Segments_Policies

Reportable Segments (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Segment Reporting, Policy [Policy Text Block]	'
	The accounting policies of the reportable segments are the same as the Company’s, except that certain inter-segment transactions that are eliminated at the consolidated level are not eliminated at the segment level as they are treated as a third-party sales transactions in determining segment performance. Inter-segment transactions, which primarily include the purchase of advertising and content between segments, were not significant for the periods presented.
Adjusted OIBDA [Policy Text Block]	'
	The Company believes Adjusted OIBDA is relevant to investors because it allows them to analyze the operating performance of each segment using the same metric management uses. The Company excludes mark-to-market equity-based compensation, exit and restructuring charges, certain impairment charges and gains (losses) on business and asset dispositions from the calculation of Adjusted OIBDA due to their volatility. The Company also excludes depreciation of fixed assets, amortization of intangible assets and deferred launch incentives as these amounts do not represent cash payments in the current reporting period.

Acquisitions_And_Dispositions_

Acquisitions And Dispositions (Tables)	12 Months Ended
	Dec. 31, 2013
Business Acquisition [Line Items]	'
Schedule of Pro Forma Information [Table Text Block]	'
		Pro forma
		Year Ended December 31,
		2013			2012
	Revenues	$	5,755		$	5,315
	Income from continuing operations, net of taxes	$	1,080		$	992
Schedule of Results of Operations for Business Combinations Included in Consolidated Results [Table Text Block]	'
	The following table presents the revenue and earnings of the business combinations as reported within the consolidated financial statements for the year ended December 31, 2013 (in millions). Amounts during the prior years are immaterial.
		Year Ended December 31, 2013
	Revenue	$	666
	Income from continuing operations, net of income taxes	$	—
SBS Nordic [Member]	'
Business Acquisition [Line Items]	'
Schedule of Purchase Price Allocation [Table Text Block]	'
	The table below presents the fair value allocation of the purchase price to the assets and liabilities acquired (in millions).
		9-Apr-13
	Goodwill	$	779
	Intangible assets	1,001
	Content	248
	Other assets acquired	212
	Cash	106
	Liabilities assumed	(278		)
	Deferred tax liabilities	(243		)
	Redeemable noncontrolling interest	(6		)
	Net assets acquired	$	1,819
Discovery Japan [Member]	'
Business Acquisition [Line Items]	'
Schedule of Purchase Price Allocation [Table Text Block]	'
	The table below presents the fair value allocation of the purchase price to the assets and liabilities acquired (in millions).
		10-Jan-13
	Goodwill	$	103
	Intangible assets	100
	Other assets acquired	25
	Currency translation adjustment	6
	Cash	4
	Remeasurement gain on previously held equity interest	(92		)
	Liabilities assumed	(55		)
	Redeemable noncontrolling interest	(35		)
	Carrying value of previously held equity interest	(3		)
	Net assets acquired	$	53

Investments_Tables

Investments (Tables)	12 Months Ended
	Dec. 31, 2013
Investments [Abstract]	'
Schedule Of Investments	'
	The Company’s investments consisted of the following (in millions).
			December 31,
		Balance Sheet Location	2013		2012
	Trading securities:
	Mutual funds	Prepaid expenses and other current assets	$	129	$	96
	Available-for-sale securities:
	Common stock	Other noncurrent assets	4		—
	Money market mutual funds	Cash and cash equivalents	—		475
	Equity method investments	Equity method investments	1,087		1,095
	Cost method investments	Other noncurrent assets	34		34
	Total investments		$	1,254	$	1,700

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Assets And Liabilities	'
	The table below presents assets and liabilities measured at fair value on a recurring basis (in millions).
			December 31, 2013
	Category	Balance Sheet Location	Level 1		Level 2		Level 3		Total
	Assets:
	Trading securities:
	Mutual funds	Prepaid expenses and other current assets	$	129	$	—	$	—	$	129
	Available-for-sale securities:
	Common stock	Other noncurrent assets	4		—		—		4
	Derivatives:
	Foreign exchange	Prepaid expenses and other current assets	—		4		—		4
	Foreign exchange	Other noncurrent assets	—		9		—		9
	Total assets		$	133	$	13	$	—	$	146
	Liabilities:
	Deferred compensation plan	Accrued expenses and other current liabilities	$	129	$	—	$	—	$	129
	Derivatives:
	Foreign exchange	Accrued expenses and other current liabilities	—		1		—		1
	TF1 put right	Other noncurrent liabilities	—		—		20		20
	Total liabilities		$	129	$	1	$	20	$	150
			December 31, 2012
	Category	Balance Sheet Location	Level 1		Level 2		Level 3		Total
	Assets:
	Trading securities:
	Mutual funds	Prepaid expenses and other current assets	$	96	$	—	$	—	$	96
	Available-for-sale securities:
	Money market mutual funds	Cash and cash equivalents	475		—		—		475
	Total assets		$	571	$	—	$	—	$	571
	Liabilities:
	Deferred compensation plan	Accrued expenses and other current liabilities	$	96	$	—	$	—	$	96
	Derivatives:
	Foreign exchange	Accrued expenses and other current liabilities	—		2		—		2
	Total liabilities		$	96	$	2	$	—	$	98

Content_Rights_Tables

Content Rights (Tables)	12 Months Ended
	Dec. 31, 2013
Content Rights [Abstract]	'
Schedule Of Content Rights	'
	The following table presents a summary of the components of content rights (in millions).
		December 31,
		2013			2012
	Produced content rights:
	Completed	$	3,566		$	2,724
	In-production	334			308
	Coproduced content rights:
	Completed	637			566
	In-production	84			76
	Licensed content rights:
	Acquired	880			483
	Prepaid	48			17
	Content rights, at cost	5,549			4,174
	Accumulated amortization	(3,389		)	(2,497		)
	Total content rights, net	2,160			1,677
	Current portion	(277		)	(122		)
	Noncurrent portion	$	1,883		$	1,555

Property_And_Equipment_Tables

Property And Equipment (Tables)	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Components Of Property And Equipment	'
	Property and equipment consisted of the following (in millions).
		December 31,
		2013			2012
	Land, buildings and leasehold improvements	$	318		$	293
	Broadcast equipment	556			429
	Capitalized software costs	222			196
	Office equipment, furniture, fixtures and other	301			253
	Property and equipment, at cost	1,397			1,171
	Accumulated depreciation	(883		)	(783		)
	Property and equipment, net	$	514		$	388

Goodwill_And_Intangible_Assets1

Goodwill And Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill By Reportable Segment	'
	Changes in the carrying value of goodwill, by reportable segment, were as follows (in millions).
			U.S.			International				Education			Total
			Networks			Networks
	31-Dec-11		$	4,979		$	1,293			$	19		$	6,291
	Acquisitions (See Note 3.)		19			87				—			106
	Foreign currency translation		—			2				—			2
	31-Dec-12		4,998			1,382				19			6,399
	Acquisitions (See Note 3.)		—			924				25			949
	Dispositions		(9		)	—				—			(9		)
	Foreign currency translation		—			1				1			2
	31-Dec-13		$	4,989		$	2,307			$	45		$	7,341
Schedule Of Intangible Assets Subject To Amortization	'
	Finite-lived intangible assets consisted of the following (in millions, except years).
		Weighted		31-Dec-13										31-Dec-12
		Average
		Amortization
		Period (Years)		Gross			Accumulated				Net			Gross			Accumulated				Net
							Amortization										Amortization
	Intangible assets subject to amortization:
	Trademarks	9		$	432		$	(58	)		$	374		$	40		$	(24	)		$	16
	Customer relationships	16		1,189			(262		)		927			516			(138		)		378
	Other	13		112			(12		)		100			56			(3		)		53
	Total			$	1,733		$	(332	)		$	1,401		$	612		$	(165	)		$	447
Schedule Of Intangible Assets Not Subject To Amortization	'
	Indefinite-lived intangible assets not subject to amortization (in millions):
			December 31,
			2013			2012
	Intangible assets not subject to amortization:
	Trademarks		$	164		$	164
Amortization Expense For Intangible Assets	'
	Amortization expense relating to intangible assets subject to amortization for each of the next five years and thereafter is estimated to be as follows (in millions).
			2014			2015				2016			2017			2018				Thereafter
	Amortization expense		$	166		$	150			$	150		$	141		$	131			$	663

Debt_Tables

Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Outstanding Debt	'
	The table below presents the components of outstanding debt (in millions).
		December 31,
		2013			2012
	3.70% Senior Notes, semi-annual interest, due June 2015	$	850		$	850
	5.625% Senior Notes, semi-annual interest, due August 2019	500			500
	5.05% Senior Notes, semi-annual interest, due June 2020	1,300			1,300
	4.375% Senior Notes, semi-annual interest, due June 2021	650			650
	3.30% Senior Notes, semi-annual interest, due May 2022	500			500
	3.25% Senior Notes, semi-annual interest, due April 2023	350			—
	6.35% Senior Notes, semi-annual interest, due June 2040	850			850
	4.95% Senior Notes, semi-annual interest, due May 2042	500			500
	4.875% Senior Notes, semi-annual interest, due April 2043	850			—
	Capital lease obligations	165			110
	Total debt	6,515			5,260
	Unamortized discount	(16		)	(17		)
	Debt, net	6,499			5,243
	Current portion of debt	(17		)	(31		)
	Noncurrent portion of debt	$	6,482		$	5,212
Debt Repayment Schedule	'
	The following table presents a summary of scheduled and estimated debt payments, excluding capital lease obligations, for the succeeding five years based on the amount of debt outstanding as of December 31, 2013 (in millions).
		2014			2015			2016		2017		2018		Thereafter
	Long-term debt payments	$	—		$	850		$	—	$	—	$	—	$	5,500

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2013
Derivatives, Fair Value [Line Items]	'
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	'
	The following table summarizes the notional amount and fair value of the Company's derivative positions as of December 31, 2013 and 2012 (in millions).
			December 31, 2013								December 31, 2012
		Balance Sheet Location	Notional				Fair Value				Notional				Fair Value
	Derivatives designated as hedges:
	Foreign exchange	Prepaid expenses and other current assets	$	16			$	4			$	—			$	—
	Foreign exchange	Other noncurrent assets	$	36			$	9			$	—			$	—
	Derivatives not designated as hedges:
	Foreign exchange	Prepaid expenses and other current assets	$	—			$	—			$	661			$	—
	Foreign exchange	Accrued liabilities	$	4			$	1			$	56			$	2
	Foreign exchange	Other noncurrent liabilities	$	3			$	—			$	—			$	—
	TF1 put right	Other noncurrent liabilities	$	574			$	20			$	—			$	—
Impact Of Derivative Instruments On Income And Other Comprehensive Income (Loss)	'
	The following table presents the pre-tax impact of derivative instruments on income and other comprehensive (loss) income (in millions).
					Year Ended December 31,
		Type of change	Income and Other Comprehensive Income Location		2013				2012				2011
	Derivatives designated as hedges:
	Foreign exchange contracts	Unrealized gains	Comprehensive (loss) income		$	10			$	—			$	—
	Interest rate contracts	Realized losses	Comprehensive (loss) income		$	—			$	(2	)		$	—
	Foreign exchange contracts	Reclassification of gains	Selling, general and administrative expense		$	(1	)		$	—			$	—
	Derivatives not designated as hedges:
	Foreign exchange contracts	Realized losses	Other income (expense), net		$	(56	)		$	(2	)		$	(1	)
	TF1 put right	Unrealized losses	Other income (expense), net		$	(6	)		$	—			$	—

Redeemable_Noncontrolling_Inte2

Redeemable Noncontrolling Interest (Tables)	12 Months Ended
	Dec. 31, 2013
Temporary Equity [Abstract]	'
Redeemable noncontrolling interest [Table Text Block]	'
	The table below presents the reconciliation of changes in redeemable noncontrolling interests (in millions).
		Redeemable Noncontrolling Interests
	Balance, December, 31 2012	$	—
	Initial fair value of redeemable noncontrolling interests of acquired businesses	41
	Comprehensive income adjustments:
	Net income attributable to redeemable noncontrolling interests	1
	Other comprehensive loss attributable to redeemable noncontrolling interests	(3		)
	Currency translation on redemption values	(5		)
	Retained earnings adjustments:
	Adjustments to redemption value	2
	Balance, December 31, 2013	$	36

Equity_Tables

Equity (Tables)	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Schedule of Stock Repurchases	'
	The table below presents a summary of stock repurchases (in millions) under the stock repurchase program.
			Year Ended December 31,
			2013				2012				2011
	Series A Common Stock:
	Shares repurchased		0.8				2				—
	Purchase price		$	62			$	109			$	—
	Series C Common Stock:
	Shares repurchased		13.3				26.5				27.2
	Purchase price		$	987			$	1,271			$	997
	Total shares repurchased		14.1				28.5				27.2
	Total purchase price		$	1,049			$	1,380			$	997
Schedule of Other Comprehensive (Loss) Income	'
	The table below presents the tax effects related to each component of other comprehensive (loss) income and reclassifications made into the consolidated statements of operations (in millions).
		Year Ended December 31, 2013												Year Ended December 31, 2012								Year Ended December 31, 2011
		Pretax				Tax				Net-of-tax				Pretax			Tax Benefit (Provision)		Net-of-tax			Pretax		Tax Benefit (Provision)			Net-of-tax
						Benefit (Provision)
	Currency translation adjustments:
	Unrealized gains	$	16			$	(21	)		$	(5	)		$	21		$	7	$	28		$	15	$	(5	)	$	10
	Reclassifications to other income (expense), net	(9		)		3				(6		)		—			—		—			—		—			—
	Derivative and market value adjustments:
	Unrealized gains/(losses)	13				(4		)		9				(2		)	1		(1		)	—		—			—
	Reclassifications to selling, general and administrative expense	(1		)		—				(1		)		—			—		—			—		—			—
	Other comprehensive (loss) income	$	19			$	(22	)		$	(3	)		$	19		$	8	$	27		$	15	$	(5	)	$	10
Schedule Of Change In Components Of Accumulated Other Comprehensive Income	'
	The table below presents the changes in the components of accumulated other comprehensive income, net of taxes (in millions). There were no reclassifications from accumulated other comprehensive income in 2012 and 2011.
			Currency Translation Adjustments				Derivative				Accumulated
							and Market				Other
							Value				Comprehensive Income
							Adjustments
	31-Dec-10		$	(39	)		$	6			$	(33	)
	Other comprehensive income		10				—				10
	31-Dec-11		(29		)		6				(23		)
	Other comprehensive income (loss)		28				(1		)		27
	31-Dec-12		(1		)		5				4
	Other comprehensive (loss) income from unrealized (losses) gains		(5		)		9				4
	Reclassifications from accumulated other comprehensive income to net income		(6		)		(1		)		(7		)
	Other comprehensive (loss) income		(11		)		8				(3		)
	Other comprehensive loss (income) attributable to redeemable noncontrolling interests		4				(1		)		3
	31-Dec-13		$	(8	)		$	12			$	4

EquityBased_Compensation_Table

Equity-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Stock-Based Compensation Expense	'
	The table below presents the components of equity-based compensation expense (in millions).
		Year Ended December 31,
		2013			2012				2011
	SARs	$	63		$	21			$	1
	Unit awards	60			68				39
	PRSUs and RSUs	41			36				23
	Stock options	25			29				36
	ESPP	1			—				—
	Total equity-based compensation expense	$	190		$	154			$	99
	Tax benefit recognized	$	51		$	45			$	35
SARs [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Stock-Based Compensation - Summary Of Activities	'
	The table below presents SAR award activity (in millions, except years and weighted-average grant price).
		SARs		Weighted-				Weighted-		Aggregate
				Average				Average		Intrinsic
				Grant				Remaining		Value
				Price				Contractual
								Term
								(years)
	Outstanding as of December 31, 2012	1.8		$	41.13
	Granted	1.9		$	65.3
	Settled	(0.5	)	$	41.25					$	11
	Outstanding as of December 31, 2013	3.2		$	55.2			1.4		$	113
	Vested and expected to vest as of December 31, 2013	3.2		$	55.19			1.4		$	113
Scheduled Of Weighted-Average Assumptions Used To Determine, Fair Value	'
	The fair value of outstanding SARs is estimated using the Black-Scholes option-pricing model. The weighted-average assumptions used to determine the fair value of outstanding SARs were as follows.
		Year Ended December 31,
		2013		2012			2011
	Risk-free interest rate	0.45	%	0.29	%		0.75	%
	Expected term (years)	1.4		1.6			4.1
	Expected volatility	22.77	%	26.31	%		37.53	%
	Dividend yield	—		—			—
Unit Awards [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Stock-Based Compensation - Summary Of Activities	'
	The table below presents unit award activity (in millions, except years and weighted-average grant price).
		Unit Awards		Weighted-				Weighted-		Aggregate
				Average				Average		Intrinsic
				Grant				Remaining		Value
				Price				Contractual
								Term
								(years)
	Outstanding as of December 31, 2012	3.1		$	34.78
	Settled	(1.5	)	$	30.78					$	53
	Outstanding as of December 31, 2013	1.6		$	38.46			0.4		$	81
	Vested and expected to vest as of December 31, 2013	1.6		$	38.46			0.4		$	81
Scheduled Of Weighted-Average Assumptions Used To Determine, Fair Value	'
	The fair value of outstanding unit awards is estimated using the Black-Scholes option-pricing model. The weighted-average assumptions used to determine the fair value of outstanding unit awards were as follows.
		Year Ended December 31,
		2013		2012			2011
	Risk-free interest rate	0.16	%	0.18	%		0.19	%
	Expected term (years)	0.4		0.7			1
	Expected volatility	21.13	%	25.46	%		32.84	%
	Dividend yield	—		—			—
PRSUs And RSUs [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Stock-Based Compensation - Summary Of Activities	'
	The table below presents PRSU and RSU activity (in millions, except years and weighted-average grant price).
		PRSUs and		Weighted-Average				Weighted-Average		Aggregate
		RSUs		Grant				Remaining		Fair
				Price				Contractual		Value
								Term
								(years)
	Outstanding as of December 31, 2012	2.9		$	39.66
	Granted	0.3		$	75.08
	Converted	(0.7	)	$	33.77					$	48
	Forfeited	(0.1	)	$	53.86
	Outstanding as of December 31, 2013	2.4		$	46			1		$	220
	Vested and expected to vest as of December 31, 2013	2.3		$	45.54			1		$	211
Stock Options [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Stock-Based Compensation - Summary Of Activities	'
	The table below presents stock option activity (in millions, except years and weighted-average exercise price).
		Stock Options		Weighted-				Weighted-		Aggregate
				Average				Average		Intrinsic
				Exercise				Remaining		Value
				Price				Contractual
								Term
								(years)
	Outstanding as of December 31, 2012	9		$	28.53
	Granted	1		$	75.25
	Exercised	(2.2	)	$	21.18					$	130
	Forfeited	(0.2	)	$	52.91
	Outstanding as of December 31, 2013	7.6		$	36.47			4.6		$	410
	Vested and expected to vest as of December 31, 2013	7.4		$	35.86			4.6		$	403
	Exercisable as of December 31, 2013	4.7		$	26.08			4.3		$	304
Scheduled Of Weighted-Average Assumptions Used To Determine Fair Value Of Stock Options	'
	The fair value of stock options is estimated using the Black-Scholes option-pricing model. The weighted-average assumptions used to determine the fair value of stock options as of the date of grant during 2013, 2012 and 2011 were as follows.
		Year Ended December 31,
		2013		2012			2011
	Risk-free interest rate	0.79	%	1.02	%		1.53	%
	Expected term (years)	5		5			5
	Expected volatility	35.97	%	38.33	%		40.17	%
	Dividend yield	—		—			—

Exit_And_Restructuring_Charges1

Exit And Restructuring Charges (Tables)	12 Months Ended
	Dec. 31, 2013
Restructuring and Related Activities [Abstract]	'
Exit And Restructuring Charges, By Reporting Segment	'
	Exit and restructuring charges, by reportable segment were as follows (in millions).
		Year Ended December 31,
		2013			2012			2011
	U.S. Networks	$	4		$	3		$	4
	International Networks	11			1			3
	Corporate	1			2			3
	Total exit and restructuring charges	$	16		$	6		$	10
Changes In Exit And Restructuring Liabilities	'
	Changes in exit and restructuring liabilities by major category were as follows (in millions).
		Contract			Employee			Total
		Terminations			Relocations/
					Terminations
	31-Dec-10	$	5		$	10		$	15
	Net accruals	—			10			10
	Cash paid	(1		)	(15		)	(16		)
	December 31, 2011	4			5			9
	Net accruals	1			5			6
	Cash paid	(2		)	(7		)	(9		)
	December 31, 2012	3			3			6
	Net accruals	—			16			16
	Cash paid	(1		)	(14		)	(15		)
	December 31, 2013	$	2		$	5		$	7

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule Of Components Of Income From Continuing Operations Before Income Taxes	'
	The domestic and foreign components of income from continuing operations before income taxes were as follows (in millions).
		Year Ended December 31,
		2013				2012				2011
	Domestic	$	1,104			$	869			$	1,015
	Foreign	632				649				548
	Income from continuing operations before income taxes	$	1,736			$	1,518			$	1,563
Schedule Of Components Of Provision For Income Taxes	'
	The components of the provision for income taxes were as follows (in millions).
		Year Ended December 31,
		2013				2012				2011
	Current:
	Federal	$	333			$	419			$	253
	State and local	68				95				38
	Foreign	175				118				109
		576				632				400
	Deferred:
	Federal	113				(69		)		17
	State and local	(2		)		9				13
	Foreign	(28		)		(10		)		(3		)
		83				(70		)		27
	Provision for income taxes	$	659			$	562			$	427
Schedule Of Effective Income Tax Rate Reconciliation	'
	The following table reconciles the Company's effective income tax rate to the U.S. federal statutory income tax rate of 35%.
		Year Ended December 31,
		2013			2012			2011
	U.S. federal statutory income tax rate	35	%		35	%		35	%
	State and local income taxes, net of federal tax benefit	3	%		5	%		2	%
	Effect of foreign operations	2	%		(1	)%		(1	)%
	Domestic production activity deductions	(2	)%		(3	)%		(2	)%
	Remeasurement gain on previously held equity interest	(2	)%		—	%		—	%
	Foreign tax credit benefit	—	%		—	%		(7	)%
	Non-deductible goodwill	—	%		—	%		(1	)%
	Other, net	2	%		1	%		1	%
	Effective income tax rate	38	%		37	%		27	%
Schedule Of Deferred Tax Assets And Liabilities	'
	Components of deferred income tax assets and liabilities were as follows (in millions).
		December 31,
		2013				2012
	Deferred income tax assets:
	Accounts receivable	$	3			$	2
	Tax attribute carry-forward	126				198
	Unrealized loss on derivatives and foreign currency translation adjustments	2				26
	Accrued liabilities and other	202				117
	Total deferred income tax assets	333				343
	Valuation allowance	(18		)		(23		)
	Net deferred income tax assets	315				320
	Deferred income tax liabilities:
	Intangible assets	(421		)		(178		)
	Content rights	(280		)		(173		)
	Equity method investments	(131		)		(117		)
	Notes receivable	(16		)		(17		)
	Other	(31		)		(33		)
	Total deferred income tax liabilities	(879		)		(518		)
	Net deferred income tax liabilities	$	(564	)		$	(198	)
Schedule Of Income Tax Assets And Liabilities Financial Position	'
	The Company’s deferred income tax assets and liabilities were reported on the consolidated balance sheets as follows (in millions).
		December 31,
		2013				2012
	Deferred income tax assets	$	73			$	74
	Deferred income tax liabilities	(637		)		(272		)
	Net deferred income tax liabilities	$	(564	)		$	(198	)
Summary of Operating Loss Carryforwards [Table Text Block]	'
	The Company’s operating loss carry-forwards were reported on the consolidated balance sheets as follows (in millions).
		Federal(a)				State				Foreign
	Operating loss carry-forwards	$	9			$	574			$	55
	Deferred tax asset related to loss carry-forwards	$	3			$	14			$	13
	Valuation allowance against loss carry-forwards	$	—			$	(11	)		$	(7	)
	Earliest expiration date of loss carry-forwards	2028				2014				2014
	(a) The use of the federal operating loss carry-forwards is subject to annual limitations.
Schedule Of Unrecognized Tax Benefits	'
	A reconciliation of the beginning and ending amounts of unrecognized tax benefits (without related interest amounts) is as follows (in millions).
		Year Ended December 31,
		2013				2012				2011
	Beginning balance	$	128			$	46			$	63
	Additions based on tax positions related to the current year	25				48				15
	Additions for tax positions of prior years	36				39				7
	Additions for tax positions acquired in business combinations	9				—				—
	Reductions for tax positions of prior years	(8		)		(4		)		(20		)
	Settlements	(3		)		(1		)		(1		)
	Reductions due to lapse of statutes of limitations	(2		)		—				(18		)
	Ending balance	$	185			$	128			$	46

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Weighted Average Number Of Shares Outstanding	'
	The table below sets forth the computation of the weighted-average number of shares outstanding utilized in determining basic and diluted earnings per share (in millions, except per share amounts).
		Year Ended December 31,
		2013				2012			2011
	Numerator:
	Income from continuing operations, net of taxes	$	1,077			$	956		$	1,136
	Less:
	Net income attributable to noncontrolling interests	(1		)		(2		)	(1		)
	Net income attributable to redeemable noncontrolling interests	(1		)		—			—
	Redeemable noncontrolling interest adjustments to redemption value	(2		)		—			—
	Income from continuing operations available to Discovery Communications, Inc. stockholders, net of taxes	1,073				954			1,135
	Loss from discontinued operations available to Discovery Communications, Inc. stockholders, net of taxes	—				(11		)	(3		)
	Net income available to Discovery Communications, Inc. stockholders	$	1,073			$	943		$	1,132
	Denominator:
	Weighted-average shares outstanding – basic	357				376			401
	Weighted-average dilutive effect of equity awards	4				4			4
	Weighted-average shares outstanding – diluted	361				380			405
	Income (Loss) Per Share:
	Basic earnings per share available to Discovery Communications, Inc. stockholders:
	Continuing operations	$	3.01			$	2.54		$	2.83
	Discontinued operations	$	—			$	(0.03	)	$	(0.01	)
	Net income	$	3.01			$	2.51		$	2.82
	Diluted earnings per share available to Discovery Communications, Inc. stockholders:
	Continuing operations	$	2.97			$	2.51		$	2.8
	Discontinued operations	$	—			$	(0.03	)	$	(0.01	)
	Net income	$	2.97			$	2.48		$	2.8
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	'
	The table below presents the details of the equity-based awards and preferred shares that were excluded from the calculation of diluted earnings per share (in millions).
		Year Ended December 31,
		2013			2012			2011
	Anti-dilutive stock options and RSUs	1			—			1
	PRSUs whose performance targets are not achieved	1			2			1

Supplemental_Disclosures_Table

Supplemental Disclosures (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure Text Block Supplement [Abstract]	'
Valuation And Qualifying Accounts	'
	Changes in valuation and qualifying accounts consisted of the following (in millions).
			Beginning				Additions			Write-offs			Utilization			End
			of Year													of Year
	2013
	Allowance for doubtful accounts		$	12			$	6		$	(2	)	$	—		$	16
	Deferred tax valuation allowance		23				7			(11		)	(1		)	18
	2012
	Allowance for doubtful accounts		12				4			(4		)	—			12
	Deferred tax valuation allowance		24				8			(9		)	—			23
	2011
	Allowance for doubtful accounts		13				2			(3		)	—			12
	Deferred tax valuation allowance		13				11			—			—			24
Schedule Of Accrued Liabilities	'
	Accrued liabilities consisted of the following (in millions).
		December 31,
		2013				2012
	Accrued payroll and related benefits	$	373			$	275
	Content rights payable	212				131
	Current portion of equity-based compensation liabilities	85				55
	Accrued interest	43				30
	Accrued income taxes	71				59
	Other accrued liabilities	208				171
	Total accrued liabilities	$	992			$	721
Schedule Of Other Income (Expense), Net	'
	Other expense, net consisted of the following (in millions).
			Year Ended December 31,
			2013				2012			2011
	Remeasurement gain on previously held equity interest		$	92			$	—		$	—
	Loss on derivative instruments		(62		)		(2		)	(1		)
	Other (expense) income		(4		)		(1		)	4
	Total other income (expense), net		$	26			$	(3	)	$	3
Cash proceeds from equity-based plans, net	'
	Cash proceeds from equity-based plans, net consisted of the following (in millions).
			Year Ended December 31,
			2013				2012			2011
	Tax settlements associated with equity-based plans		$	(22	)		$	(3	)	$	(1	)
	Proceeds from issuance of common stock in connection with equity based plans		51				84			61
	Excess tax benefits from equity-based compensation		44				38			28
	Total cash proceeds from equity-based plans, net		$	73			$	119		$	88

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Schedule Of Related Party Transactions, Revenues Text Block	'
	The table below presents a summary of the transactions with related parties (in millions).
		Year Ended December 31,
		2013			2012			2011
	Revenues and service charges:
	Liberty Group(a)	$	120		$	54		$	49
	Equity method investees(b)	75			94			88
	Other	28			7			11
	Total revenues and service charges	$	223		$	155		$	148
	Interest income(c)	$	35		$	29		$	17
	Expenses	$	(27	)	$	(22	)	$	(34	)
	­
	(a) The increase in revenue from transactions with the Liberty Group is primarily attributable to activity with Virgin Media, Inc. ("Virgin Media") and Charter Communications, Inc. ("Charter"). In June 2013, Liberty Global announced it had completed its acquisition of Virgin Media. In May 2013 Liberty Media completed its equity method investment in Charter; Dr. Malone is on Charter's board of directors. Transactions with Virgin Media and Charter are reported as related party transactions from the date they became related parties.
	(b) The decrease in revenue from transactions with equity method investees is primarily attributable to the consolidation of Discovery Japan and lower content sales to OWN.
	(c) The Company records interest earnings from loans to equity method investees as a component of income (loss) from equity method investees, net, in the consolidated statements of operations. (See Note 4.)
Schedule Of Related Party Transactions Receivables, Text Block	'
	The table below presents receivables due from related parties (in millions).
		December 31,
		2013			2012
	Receivables	$	41		$	23
	Note receivable (See Note 4.)	$	483		$	482

Commitments_And_Contingencies_

Commitments And Contingencies (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Schedule Of Significant Contractual Commitments	'
	As of December 31, 2013, the Company’s significant contractual commitments, including related payments due by period, were as follows (in millions).
		Leases
	Year Ending December 31,	Operating		Capital			Content		Other		Total
	2014	$	72	$	26		$	392	$	249	$	739
	2015	74		27			84		186		371
	2016	66		25			54		134		279
	2017	60		21			29		113		223
	2018	47		18			7		92		164
	Thereafter	142		119			—		312		573
	Total minimum payments	461		236			566		1,086		2,349
	Amounts representing interest	—		(71		)	—		—		(71		)
	Total	$	461	$	165		$	566	$	1,086	$	2,278

Reportable_Segments_Tables

Reportable Segments (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Schedule Of Revenues By Segment	'
		Year Ended December 31,
		2013			2012			2011
	U.S. Networks	$	2,952		$	2,748		$	2,619
	International Networks	2,474			1,637			1,455
	Education	114			105			95
	Corporate and inter-segment eliminations	(5		)	(3		)	(1		)
	Total revenues	$	5,535		$	4,487		$	4,168
Schedule Of Adjusted OIBDA By Segment	'
		Year Ended December 31,
		2013			2012			2011
	U.S. Networks	$	1,708		$	1,622		$	1,495
	International Networks	976			721			645
	Education	27			27			25
	Corporate and inter-segment eliminations	(286		)	(275		)	(249		)
	Total Adjusted OIBDA	$	2,425		$	2,095		$	1,916
Schedule Of Reconciliation Of Adjusted OIBDA To Operating Income	'
		Year Ended December 31,
		2013			2012			2011
	Total Adjusted OIBDA	$	2,425		$	2,095		$	1,916
	Amortization of deferred launch incentives	(18		)	(20		)	(52		)
	Mark-to-market equity-based compensation	(136		)	(97		)	(43		)
	Depreciation and amortization	(276		)	(117		)	(117		)
	Restructuring and impairment charges	(16		)	(6		)	(30		)
	Gain on disposition	19			—			129
	Operating income	$	1,998		$	1,855		$	1,803
Schedule Of Total Assets By Segment	'
		December 31,
		2013			2012
	U.S. Networks	$	2,978		$	2,878
	International Networks	4,792			1,984
	Education	125			63
	Corporate and inter-segment eliminations	7,084			8,005
	Total assets	$	14,979		$	12,930
Schedule Of Content Amortization And Impairment Expense By Segment	'
		Year Ended December 31,
		2013			2012			2011
	U.S. Networks	$	626		$	558		$	567
	International Networks	564			302			270
	Education	3			2			4
	Corporate and inter-segment eliminations	(3		)	3			5
	Total content amortization and impairment expense	$	1,190		$	865		$	846
Schedule Of Revenues By Country	'
		Year Ended December 31,
		2013			2012			2011
	U.S.	$	3,071		$	2,871		$	2,717
	Non-U.S.	2,464			1,616			1,451
	Total revenues	$	5,535		$	4,487		$	4,168
Schedule Of Property And Equipment By Country	'
		December 31,
		2013			2012
	U.S.	$	261		$	260
	U.K.	115			105
	Other non-U.S.	138			23
	Total property and equipment, net	$	514		$	388

Selected_Quarterly_Financial_D1

Selected Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2013
Selected Quarterly Financial Information [Abstract]	'
Selected Quarterly Financial Data (Unaudited)	'
	SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)
		2013(a)(b)
		1st quarter			2nd quarter			3rd quarter			4th quarter
	Revenues	$	1,156		$	1,467		$	1,375		$	1,537
	Operating income	414			564			499			521
	Income from continuing operations, net of taxes	231			300			256			290
	Income from discontinued operations, net of taxes	—			—			—			—
	Net income	231			300			256			290
	Net income available to Discovery Communications, Inc. stockholders	233			297			255			288
	Basic earnings per share available to Discovery Communications, Inc. stockholders:
	Continuing operations	$	0.64		$	0.83		$	0.72		$	0.82
	Discontinued operations	$	—		$	—		$	—		$	—
	Net Income	$	0.64		$	0.83		$	0.72		$	0.82
	Diluted earnings per share available to Discovery Communications, Inc. stockholders:
	Continuing operations	$	0.63		$	0.82		$	0.71		$	0.81
	Discontinued operations	$	—		$	—		$	—		$	—
	Net Income	$	0.63		$	0.82		$	0.71		$	0.81
		2012(a)(c)
		1st quarter			2nd quarter			3rd quarter			4th quarter
	Revenues	$	1,085		$	1,126		$	1,076		$	1,200
	Operating income	448			488			438			481
	Income from continuing operations, net of taxes	223			294			215			224
	Loss from discontinued operations, net of taxes	(1		)	(1		)	(9		)	—
	Net income	222			293			206			224
	Net income available to Discovery Communications, Inc. stockholders	221			293			205			224
	Basic earnings per share available to Discovery Communications, Inc. stockholders:
	Continuing operations	$	0.58		$	0.77		$	0.58		$	0.61
	Discontinued operations	$	—		$	—		$	(0.02	)	$	—
	Net Income	$	0.57		$	0.77		$	0.55		$	0.61
	Diluted earnings per share available to Discovery Communications, Inc. stockholders:
	Continuing operations	$	0.57		$	0.77		$	0.57		$	0.61
	Discontinued operations	$	—		$	—		$	(0.02	)	$	—
	Net Income	$	0.57		$	0.76		$	0.55		$	0.61
	(a)Income per share amounts for each quarter are calculated independently and may not add to annual amounts.
	(b)On April 9, 2013, the Company acquired SBS Nordic. During the year ended December 31, 2012, the Company acquired Switchover Media and a television station in Dubai. The Company included the operations of each of these acquisitions in the Company's consolidated financial statements as of each of their respective acquisition dates. (See Note 3.)
	(c)On September 17, 2012, the Company sold its postproduction audio business, CSS Studios, LLC, whose results of operations have been reclassified to discontinued operations for all quarterly periods presented. (See Note 3.)

Condensed_Consolidating_Financ1

Condensed Consolidating Financial Information (Tables)	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Schedule of Condensed Consolidating Balance Sheet	'
	CONDENSED CONSOLIDATING BALANCE SHEET
	December 31, 2013
	(in millions)
		Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
											Subsidiaries of			Guarantor			and			Subsidiaries
											DCL			Subsidiaries of Discovery			Eliminations
	ASSETS
	Current assets:
	Cash and cash equivalents	$	—		$	—		$	123		$	285		$	—		$	—		$	408
	Receivables, net	—			—			449			922			—			—			1,371
	Content rights, net	—			—			12			265			—			—			277
	Deferred income taxes	—			—			31			42			—			—			73
	Prepaid expenses and other current assets	52			—			143			86			—			—			281
	Intercompany trade receivables, net	—			—			286			—			—			(286		)	—
	Total current assets	52			—			1,044			1,600			—			(286		)	2,410
	Investment in and advances to subsidiaries	6,147			6,155			7,135			—			4,112			(23,549		)	—
	Noncurrent content rights, net	—			—			615			1,268			—			—			1,883
	Goodwill	—			—			3,769			3,572			—			—			7,341
	Intangible assets, net	—			—			320			1,245			—			—			1,565
	Equity method investments	—			—			330			757			—			—			1,087
	Other noncurrent assets	—			19			173			521			—			(20		)	693
	Total assets	$	6,199		$	6,174		$	13,386		$	8,963		$	4,112		$	(23,855	)	$	14,979
	LIABILITIES AND EQUITY
	Current liabilities:
	Current portion of debt	$	—		$	—		$	5		$	12		$	—		$	—		$	17
	Other current liabilities	1			6			421			849			—			—			1,277
	Intercompany trade payables, net	—			—			—			286			—			(286		)	—
	Total current liabilities	1			6			426			1,147			—			(286		)	1,294
	Noncurrent portion of debt	—			—			6,343			139			—			—			6,482
	Other noncurrent liabilities	2			—			462			505			21			(20		)	970
	Total liabilities	3			6			7,231			1,791			21			(306		)	8,746
	Redeemable noncontrolling interests	—			—			—			36			—			—			36
	Equity attributable to Discovery Communications, Inc.	6,196			6,168			6,155			7,135			4,091			(23,549		)	6,196
	Noncontrolling interests	—			—			—			1			—			—			1
	Total equity	6,196			6,168			6,155			7,136			4,091			(23,549		)	6,197
	Total liabilities and equity	$	6,199		$	6,174		$	13,386		$	8,963		$	4,112		$	(23,855	)	$	14,979
	CONDENSED CONSOLIDATING BALANCE SHEET
	December 31, 2012
	(in millions)
		Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
											Subsidiaries of			Guarantor			and			Subsidiaries
											DCL			Subsidiaries of Discovery			Eliminations
	ASSETS
	Current assets:
	Cash and cash equivalents	$	—		$	—		$	1,022		$	179		$	—		$	—		$	1,201
	Receivables, net	—			—			406			725			—			(1		)	1,130
	Content rights, net	—			—			7			115			—			—			122
	Deferred income taxes	—			—			33			34			—			7			74
	Prepaid expenses and other current assets	46			—			106			51			—			—			203
	Intercompany trade receivables, net	—			—			96			—			—			(96		)	—
	Total current assets	46			—			1,670			1,104			—			(90		)	2,730
	Investment in and advances to subsidiaries	6,246			6,264			5,305			—			4,178			(21,993		)	—
	Noncurrent content rights, net	—			—			599			956			—			—			1,555
	Goodwill	—			—			3,769			2,630			—			—			6,399
	Intangible assets, net	—			—			332			279			—			—			611
	Equity method investments	—			—			339			756			—			—			1,095
	Other noncurrent assets	—			20			173			367			—			(20		)	540
	Total assets	$	6,292		$	6,284		$	12,187		$	6,092		$	4,178		$	(22,103	)	$	12,930
	LIABILITIES AND EQUITY
	Current liabilities:
	Current portion of debt	$	—		$	—		$	7		$	24		$	—		$	—		$	31
	Other current liabilities	—			17			362			537			—			(1		)	915
	Intercompany trade payables, net	—			—			—			96			—			(96		)	—
Total current liabilities	—			17			369			657			—			(97		)	946
Noncurrent portion of debt	—			—			5,146			66			—			—			5,212
Other noncurrent liabilities	1			—			408			62			21			(13		)	479
Total liabilities	1			17			5,923			785			21			(110		)	6,637
Equity attributable to Discovery Communications, Inc.	6,291			6,267			6,264			5,307			4,157			(21,995		)	6,291
Noncontrolling interests	—			—			—			—			—			2			2
Total equity	6,291			6,267			6,264			5,307			4,157			(21,993		)	6,293
Total liabilities and equity	$	6,292		$	6,284		$	12,187		$	6,092		$	4,178		$	(22,103	)	$	12,930
Schedule Of Condensed Consolidating Statement Of Operations [Table Text Block]	'
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
	For the Year Ended December 31, 2013
	(in millions)
		Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
											Subsidiaries of			Guarantor			and			Subsidiaries
											DCL			Subsidiaries of Discovery			Eliminations
	Revenues	$	—		$	—		$	1,867		$	3,678		$	—		$	(10	)	$	5,535
	Costs of revenues, excluding depreciation and amortization	—			—			445			1,252			—			(8		)	1,689
	Selling, general and administrative	15			—			267			1,295			—			(2		)	1,575
	Depreciation and amortization	—			—			36			240			—			—			276
	Restructuring and impairment charges	—			—			1			15			—			—			16
	Gain on disposition	—			—			—			(19		)	—			—			(19		)
	Total costs and expenses	15			—			749			2,783			—			(10		)	3,537
	Operating (loss) income	(15		)	—			1,118			895			—			—			1,998
	Equity in earnings of subsidiaries	1,084			1,084			620			—			723			(3,511		)	—
	Interest expense	—			—			(299		)	(7		)	—			—			(306		)
	Income from equity investees, net	—			—			4			14			—			—			18
	Other (expense) income, net	—			—			(53		)	79			—			—			26
	Income from continuing operations before income taxes	1,069			1,084			1,390			981			723			(3,511		)	1,736
	Benefit from (provision) for income taxes	6			—			(306		)	(359		)	—			—			(659		)
	Net income	1,075			1,084			1,084			622			723			(3,511		)	1,077
	Net income attributable to noncontrolling interests	—			—			—			—			—			(1		)	(1		)
	Net income attributable to redeemable noncontrolling interests	—			—			—			—			—			(1		)	(1		)
	Net income available to Discovery Communications, Inc.	$	1,075		$	1,084		$	1,084		$	622		$	723		$	(3,513	)	$	1,075
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
	For the Year Ended December 31, 2012
	(in millions)
		Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
											Subsidiaries of			Guarantor			and			Subsidiaries
											DCL			Subsidiaries of Discovery			Eliminations
	Revenues	$	—		$	—		$	1,796		$	2,704		$	—		$	(13	)	$	4,487
	Costs of revenues, excluding depreciation and amortization	—			—			399			830			—			(11		)	1,218
	Selling, general and administrative	13			—			279			1,001			—			(2		)	1,291
	Depreciation and amortization	—			—			36			81			—			—			117
	Restructuring and impairment charges	—			—			2			4			—			—			6
	Total costs and expenses	13			—			716			1,916			—			(13		)	2,632
	Operating (loss) income	(13		)	—			1,080			788			—			—			1,855
	Equity in earnings of subsidiaries	939			965			444			—			645			(2,993		)	—
	Interest expense	—			—			(242		)	(6		)	—			—			(248		)
	Income (losses) from equity method investees, net	—			—			3			(89		)	—			—			(86		)
	Other income (expense), net	13			2			(1		)	—			—			(17		)	(3		)
	Income from continuing operations before income taxes	939			967			1,284			693			645			(3,010		)	1,518
	Benefit from (provision for) income taxes	4			—			(319		)	(247		)	—			—			(562		)
	Income from continuing operations, net of taxes	943			967			965			446			645			(3,010		)	956
	Loss from discontinued operations, net of taxes	—			—			—			—			(28		)	17			(11		)
	Net income	943			967			965			446			617			(2,993		)	945
	Net income attributable to noncontrolling interests	—			—			—			—			—			(2		)	(2		)
	Net income available to Discovery Communications, Inc.	$	943		$	967		$	965		$	446		$	617		$	(2,995	)	$	943
	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS
	For the Year Ended December 31, 2011
	(in millions)
		Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
											Subsidiaries of			Guarantor			and			Subsidiaries
											DCL			Subsidiaries of Discovery			Eliminations
	Revenues	$	—		$	—		$	1,764		$	2,415		$	—		$	(11	)	$	4,168
	Costs of revenues, excluding depreciation and amortization	—			—			423			761			—			(8		)	1,176
	Selling, general and administrative	11			—			360			802			—			(2		)	1,171
	Depreciation and amortization	—			—			38			80			—			(1		)	117
	Restructuring and impairment charges	—			—			6			24			—			—			30
	Gain on disposition	—			—			—			(129		)	—			—			(129		)
	Total costs and expenses	11			—			827			1,538			—			(11		)	2,365
	Operating (loss) income	(11		)	—			937			877			—			—			1,803
	Equity in earnings of subsidiaries	1,139			1,141			625			—			760			(3,665		)	—
Interest expense	—			—			(203		)	(5		)	—			—			(208		)
Income (loss) from equity investees, net	—			—			4			(39		)	—			—			(35		)
Other (expense) income, net	—			—			(1		)	4			1			(1		)	3
Income from continuing operations before income taxes	1,128			1,141			1,362			837			761			(3,666		)	1,563
Benefit from (provision for) income taxes	4			—			(221		)	(210		)	—			—			(427		)
Income from continuing operations, net of taxes	1,132			1,141			1,141			627			761			(3,666		)	1,136
Loss from discontinued operations, net of taxes	—			—			—			(1		)	(2		)	—			(3		)
Net income	1,132			1,141			1,141			626			759			(3,666		)	1,133
Net income attributable to noncontrolling interests	—			—			—			—			—			(1		)	(1		)
Net income available to Discovery Communications, Inc.	$	1,132		$	1,141		1,141			$	626		759			$	(3,667	)	$	1,132
Schedule Of Condensed Consolidating Statement Of Comprehensive Income [Table Text Block]	'
	CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME
	For the Year Ended to December 31, 2013
	(in millions)
		Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
											Subsidiaries of			Guarantor			and			Subsidiaries
											DCL			Subsidiaries of Discovery			Eliminations
	Net income	$	1,075		$	1,084		$	1,084		$	622		$	723		$	(3,511	)	$	1,077
	Other comprehensive income (loss), net of tax:
	Currency translation adjustments	(11		)	(11		)	(11		)	(10		)	(7		)	39			(11		)
	Derivative and market value adjustments	8			8			8			11			5			(32		)	8
	Comprehensive income	1,072			1,081			1,081			623			721			(3,504		)	1,074
	Comprehensive income attributable to noncontrolling interests	—			—			—			—			—			(1		)	(1		)
	Comprehensive loss attributable to redeemable noncontrolling interests	3			3			3			3			2			(12		)	2
	Comprehensive income attributable to Discovery Communications, Inc.	$	1,075		$	1,084		$	1,084		$	626		$	723		$	(3,517	)	$	1,075
	CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME
	For the Year Ended to December 31, 2012
	(in millions)
		Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
											Subsidiaries of			Guarantor			and			Subsidiaries
											DCL			Subsidiaries of Discovery			Eliminations
	Net income	$	943		$	967		$	965		$	446		$	617		$	(2,993	)	$	945
	Other comprehensive income (loss), net of tax:
	Currency translation adjustments	28			28			28			26			19			(101		)	28
	Derivative and market value adjustments	(1		)	(1		)	(1		)	(1		)	(1		)	4			(1		)
	Comprehensive income	970			994			992			471			635			(3,090		)	972
	Comprehensive income attributable to noncontrolling interests	—			—			—			—			—			(2		)	(2		)
	Comprehensive income attributable to Discovery Communications, Inc.	$	970		$	994		$	992		$	471		$	635		$	(3,092	)	$	970
	CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME
	For the Year Ended to December 31, 2011
	(in millions)
		Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
											Subsidiaries of			Guarantor			and			Subsidiaries
											DCL			Subsidiaries of Discovery			Eliminations
	Net income	$	1,132		$	1,141		$	1,141		$	626		$	759		$	(3,666	)	$	1,133
	Other comprehensive income, net of tax:
	Currency translation adjustments	10			10			10			10			7			(37		)	10
	Comprehensive income	1,142			1,151			1,151			636			766			(3,703		)	1,143
	Comprehensive income attributable to noncontrolling interests	—			—			—			—			—			(1		)	(1		)
	Comprehensive income attributable to Discovery Communications, Inc.	$	1,142		$	1,151		$	1,151		$	636		$	766		$	(3,704	)	$	1,142
Schedule Of Condensed Consolidating Statement Of Cash Flows [Table Text Block]	'
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	For the Year Ended December 31, 2013
	(in millions)
		Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
											Subsidiaries of			Guarantor			and			Subsidiaries
											DCL			Subsidiaries of Discovery			Eliminations
	Operating Activities
	Cash (used in) provided by by operating activities	$	(16	)	$	(11	)	$	288		$	1,024		$	—		$	—		$	1,285
	Investing Activities
	Purchases of property and equipment	—			—			(19		)	(96		)	—			—			(115		)
	Business acquisitions, net of cash acquired	—			—			—			(1,861		)	—			—			(1,861		)
	Hedging instruments, net	—			—			(55		)	—			—			—			(55		)
	Proceeds from disposition	—			—			—			28			—			—			28
	Distribution from equity method investees	—			—			—			47			—			—			47
	Investments in and advances to equity method investees, net	—			—			(1		)	(27		)	—			—			(28		)
	Other investing activities, net	—			—			—			(3		)	—			—			(3		)
	Cash used in investing activities	—			—			(75		)	(1,912		)	—			—			(1,987		)
	Financing Activities
	Borrowings from long-term debt, net of discount and issuance costs	—			—			1,186			—			—			—			1,186
	Principal repayments of capital lease obligations	—			—			(7		)	(25		)	—			—			(32		)
	Repurchases of common stock	(1,049		)	—			—			—			—			—			(1,049		)
	Repurchase of preferred stock	(256		)	—			—			—			—			—			(256		)
	Cash proceeds from equity-based plans, net	73			—			—			—			—			—			73
	Inter-company contributions and other financing activities, net	1,248			11			(2,291		)	1,025			—			—			(7		)
	Cash provided by (used in) financing activities	16			11			(1,112		)	1,000			—			—			(85		)
	Effect of exchange rate changes on cash and cash equivalents	—			—			—			(6		)	—			—			(6		)
	Net change in cash and cash equivalents	—			—			(899		)	106			—			—			(793		)
	Cash and cash equivalents, beginning of period	—			—			1,022			179			—			—			1,201
	Cash and cash equivalents, end of period	$	—		$	—		$	123		$	285		$	—		$	—		$	408
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	For the Year Ended December 31, 2012
	(in millions)
		Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
											Subsidiaries of			Guarantor			and			Subsidiaries
											DCL			Subsidiaries of Discovery			Eliminations
	Operating Activities
	Cash (used in) provided by operating activities	$	(18	)	$	12		$	307		$	798		$	—		$	—		$	1,099
	Investing Activities
	Purchases of property and equipment	—			—			(18		)	(58		)	(1		)	—			(77		)
	Business acquisitions, net of cash acquired	—			—			—			(149		)	—			—			(149		)
	Distributions from equity method investees	—			—			—			17			—			—			17
	Investments in and advances to equity method investees, net	—			—			—			(404		)	—			—			(404		)
	Other investing activities, net	—			—			(31		)	—			1			—			(30		)
	Cash used in investing activities	—			—			(49		)	(594		)	—			—			(643		)
	Financing Activities
	Borrowings from long-term debt, net of discount and issuance costs	—			—			981			—			—			—			981
	Principal repayments of capital lease obligations	—			—			(6		)	(16		)	—			—			(22		)
	Repurchases of common stock	(1,380		)	—			—			—			—			—			(1,380		)
	Cash proceeds from equity-based plans, net	119			—			—			—			—			—			119
	Inter-company contributions and other financing activities, net	1,279			(12		)	(1,175		)	(94		)	(1		)	—			(3		)
	Cash provided by (used in) financing activities	18			(12		)	(200		)	(110		)	(1		)	—			(305		)
	Effect of exchange rate changes on cash and cash equivalents	—			—			—			2			—			—			2
	Net change in cash and cash equivalents	—			—			58			96			(1		)	—			153
	Cash and cash equivalents, beginning of period	—			—			964			83			1			—			1,048
	Cash and cash equivalents, end of period	$	—		$	—		$	1,022		$	179		$	—		$	—		$	1,201
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	For the Year Ended December 31, 2011
	(in millions)
		Discovery			DCH			DCL			Non-Guarantor			Other Non-			Reclassifications			Discovery and
											Subsidiaries of			Guarantor			and			Subsidiaries
											DCL			Subsidiaries of Discovery			Eliminations
	Operating Activities
	Cash provided by (used in) operating activities	$	68		$	(1	)	$	421		$	613		$	(1	)	$	—		$	1,100
Investing Activities
Purchases of property and equipment	—			—			(2		)	(55		)	(1		)	—			(58		)
Business acquisitions, net of cash acquired	—			—			—			(26		)	—			—			(26		)
Distributions from equity method investees	—			—			—			21			—			—			21
Investments in and advances to equity method investees, net	—			—			—			(151		)	—			—			(151		)
Cash used in investing activities	—			—			(2		)	(211		)	(1		)	—			(214		)
Financing Activities
Borrowings from long-term debt, net of discount and issuance costs	—			—			639			—			—			—			639
Principal repayments of capital lease obligations	—			—			(6		)	(14		)	—			—			(20		)
Repurchases of common stock	(997		)	—			—			—			—			—			(997		)
Cash proceeds from equity-based plans, net	88			—			—			—			—			—			88
Inter-company contributions and other financing activities, net	841			1			(457		)	(391		)	(1		)	—			(7		)
Cash (used in) provided by financing activities	(68		)	1			176			(405		)	(1		)	—			(297		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			(7		)	—			—			(7		)
Net change in cash and cash equivalents	—			—			595			(10		)	(3		)	—			582
Cash and cash equivalents, beginning of period	—			—			369			93			4			—			466
Cash and cash equivalents, end of period	$	—		$	—		$	964		$	83		$	1		$	—		$	1,048

Description_Of_Business_And_Ba1

Description Of Business And Basis Of Presentation (Details)	12 Months Ended
	Dec. 31, 2013
	segments
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Number Of Reportable Segments	3

Summary_Of_Significant_Account2

Summary Of Significant Accounting Policies (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	Customers	Customers	Customers
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Foreign currency transaction gains (losses)	$24	($4)	($12)
Launch amortization expense	18	20	52
Dividend yield	0.00%	'	'
Advertising expense	$156	$124	$132
Number of cable and satellite operators, US	10	'	'
Number of cable and satellite operators, Non-US	10	'	'
Concentration risk, number of customers	0	0	0
Concentration risk, percentage	10.00%	10.00%	10.00%
Customer Concentration Risk [Member] | United States [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Concentration risk, percentage	90.00%	'	'
Customer Concentration Risk [Member] | Non-U.S [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Concentration risk, percentage	50.00%	'	'
Minimum [Member] | Buildings [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Property, Plant and Equipment, Useful Life	'15 years	'	'
Minimum [Member] | Broadcast Equipment [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Property, Plant and Equipment, Useful Life	'3 years	'	'
Minimum [Member] | Capitalized Software [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Property, Plant and Equipment, Useful Life	'2 years	'	'
Minimum [Member] | Office Equipment [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Property, Plant and Equipment, Useful Life	'3 years	'	'
Minimum [Member] | Assets Held under Capital Leases [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Property, Plant and Equipment, Useful Life	'1 year	'	'
Minimum [Member] | Media Content [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Content Rights, Useful Life	'1 year	'	'
Maximum [Member] | Buildings [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Property, Plant and Equipment, Useful Life	'39 years	'	'
Maximum [Member] | Broadcast Equipment [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Property, Plant and Equipment, Useful Life	'5 years	'	'
Maximum [Member] | Capitalized Software [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Property, Plant and Equipment, Useful Life	'5 years	'	'
Maximum [Member] | Office Equipment [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Property, Plant and Equipment, Useful Life	'5 years	'	'
Maximum [Member] | Assets Held under Capital Leases [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Property, Plant and Equipment, Useful Life	'15 years	'	'
Maximum [Member] | Media Content [Member]	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'
Content Rights, Useful Life	'5 years	'	'

Acquisitions_And_Dispositions_1

Acquisitions And Dispositions (Narrative) (Details)

12 Months Ended

0 Months Ended

12 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Apr. 09, 2013

Apr. 09, 2013

Jan. 10, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2014

Jan. 21, 2014

Jan. 21, 2014

Jan. 21, 2014

Dec. 31, 2013

USD ($)

USD ($)

USD ($)

SBS Nordic [Member]

SBS Nordic [Member]

Discovery Japan [Member]

Discovery Japan [Member]

Series of Individually Immaterial Business Acquisitions [Member]

Series of Individually Immaterial Business Acquisitions [Member]

Series of Individually Immaterial Business Acquisitions [Member]

Switchover Media [Member]

TF1 [Member]

Forecast [Member]

Forecast [Member]

Forecast [Member]

Forecast [Member]

Pro Forma [Member]

USD ($)

EUR (€)

USD ($)

USD ($)

USD ($)

USD ($)

channels

Series of Individually Immaterial Business Acquisitions [Member]

TF1 [Member]

TF1 [Member]

Eurosport France [Member]

USD ($)

USD ($)

USD ($)

EUR (€)

Y

Significant Acquisitions and Disposals [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business acquisition, cost of acquired entity, purchase price

'

'

'

$1,800

€ 1,400

$53

'

$88

$173

$26

'

'

'

$343

€ 253

'

'

Finite-Lived Intangible Assets, Useful Life

'

'

'

'8 years

'8 years

'

'

'

'

'

'

'

'

'

'

'

'

Increase or Decrease in ownership, percentage

'

'

'

'

'

30.00%

'

'

'

'

'

'

'

'

'

'

'

Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage

'

'

'

'

'

'

50.00%

'

'

'

'

'

'

'

'

'

'

Remeasurement gain on previously held equity interest

92

0

0

'

'

92

'

'

'

'

'

'

'

'

'

'

'

Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners

20.00%

'

'

'

'

20.00%

'

'

'

'

'

'

'

49.00%

49.00%

'

'

Business Acquisition, Purchase Price Allocation, Goodwill

'

'

'

779

'

103

'

67

108

14

'

'

'

'

'

'

'

Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets

1,100

'

'

1,001

'

100

'

24

70

'

'

'

'

'

'

'

'

Payments for Previous Acquisition

'

'

'

'

'

'

'

15

'

'

'

'

'

'

'

'

'

Business Acquisition, Contingent Consideration, Potential Cash Payment

'

'

'

'

'

'

'

'

'

'

'

'

9

'

'

'

'

Number of television channels

'

'

'

'

'

'

'

'

'

'

5

'

'

'

'

'

'

Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net

62

2

1

'

'

'

'

'

'

'

'

'

'

'

'

'

56

Business Combination, Acquisition Related Costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3

Equity Method Investment, Ownership Percentage

'

'

'

'

'

'

'

'

'

'

'

20.00%

'

'

'

20.00%

'

Noncontrolling interest subject to call option

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

31.00%

'

Business Acquisition, Percentage of Voting Interests Acquired

'

'

'

'

'

'

'

'

'

'

'

'

'

51.00%

51.00%

'

'

Terms Of Put Arrangement

'

'

'

'

'

'

'

'

'

'

'

'

'

2.5

2.5

'

'

Gain on disposition, Not Discontinued Operations

$19

$0

$129

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Acquisitions_And_Dispositions_2

Acquisitions And Dispositions (Schedule of Purchase Price Allocation) (Details) (USD $)	12 Months Ended			0 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 10, 2013	Apr. 09, 2013
				Discovery Japan [Member]	SBS Nordic [Member]
Business Acquisition [Line Items]	'	'	'	'	'
Business Acquisition, Purchase Price Allocation, Goodwill	'	'	'	$103	$779
Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets	1,100	'	'	100	1,001
Business Acquisition, Purchase Price Allocation, Content	'	'	'	'	248
Business Acquisition, Purchase Price Allocation, Other Assets	'	'	'	25	212
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment Realized upon Sale or Liquidation, Net of Tax	-6	0	0	6	'
Business Acquisition, Purchase Price Allocation, Current Assets, Cash and Cash Equivalents	'	'	'	4	106
Remeasurement gain on previously held equity interest	92	0	0	92	'
Business Acquisition, Purchase Price Allocation, Liabilities Assumed	'	'	'	-55	-278
Business Acquisition, Purchase Price Allocation, Deferred Tax Liabilities, Noncurrent	'	'	'	'	-243
Redeemable Noncontrolling Interest	-36	0	'	-35	-6
Equity Method Investment Sold, Carrying Amount	'	'	'	-3	'
Net assets acquired	'	'	'	$53	$1,819

Acquisitions_And_Dispositions_3

Acquisitions And Dispositions (Schedule of Pro Forma Financial Information) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition, Pro Forma Revenue	$5,755	$5,315
Business Acquisition, Pro Forma Income from Operations, net of taxes	$1,080	$992

Acquisitions_And_Dispositions_4

Acquisitions And Dispositions (Schedule of Consolidation of Results of Business Combinations) (Details) (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Revenues

$1,537

[1]

$1,375

[1]

$1,467

[1]

$1,156

[1]

$1,200

[1],[2]

$1,076

[2]

$1,126

[2]

$1,085

[2]

$5,535

$4,487

$4,168

Income from continuing operations, net of taxes

290

[1]

256

[1]

300

[1]

231

[1]

224

[1],[2]

215

[2]

294

[2]

223

[2]

1,077

956

1,136

Business Combinations [Member]

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

666

'

'

Income from continuing operations, net of taxes

'

'

'

'

'

'

'

'

$0

'

'

[1]

(b)On April 9, 2013, the Company acquired SBS Nordic. During the year ended DecemberB 31, 2012, the Company acquired Switchover Media and a television station in Dubai. The Company included the operations of each of these acquisitions in the Company's consolidated financial statements as of each of their respective acquisition dates. (See Note 3.)

[2]

(c)On September 17, 2012, the Company sold its postproduction audio business, CSS Studios, LLC, whose results of operations have been reclassified to discontinued operations for all quarterly periods presented. (See Note 3.)

Variable_Interest_Entities_Det

Variable Interest Entities (Details) (USD $)

12 Months Ended

0 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

22-May-09

Jan. 02, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2014

Jul. 01, 2023

Jan. 01, 2016

Hub [Member]

Hub [Member]

Hub [Member]

OWN Joint Venture [Member]

OWN Joint Venture [Member]

OWN Joint Venture [Member]

Forecast [Member]

Forecast [Member]

Forecast [Member]

Y

Hub [Member]

OWN Joint Venture [Member]

OWN Joint Venture [Member]

Y

Variable Interest Entity [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Aggregate carrying value of investments in VIE's accounted for using the equity method

$789,000,000

$825,000,000

'

$312,000,000

$322,000,000

'

'

$449,000,000

$469,000,000

'

'

'

Income (losses) generated by variable interest entities

10,000,000

-92,000,000

-33,000,000

'

'

'

'

'

'

'

'

'

Variable interest, maximum exposure to loss

833,000,000

'

'

'

'

'

'

'

'

'

'

'

Specified future funding commitment, maximum

'

'

'

15,000,000

'

'

'

'

'

'

'

'

VIE Funding Obligation, Carrying Value

'

'

'

0

'

'

'

0

'

'

'

'

Guarantor Obligations, Maximum Exposure, Undiscounted

'

'

'

55,000,000

'

300,000,000

'

'

'

0

'

'

Variable interest entity, Other than Temporary Impairment

'

'

'

0

'

'

'

0

'

'

'

'

Gain (Loss) on Disposition of Assets

19,000,000

-6,000,000

129,000,000

'

'

'

129,000,000

'

'

'

'

'

Tax on gain

'

'

'

'

'

'

27,000,000

'

'

'

'

'

Investment in OWN

'

'

'

'

'

'

273,000,000

'

'

'

'

'

Goodwill, Written off Related to Sale of Business Unit

9,000,000

'

'

'

'

'

136,000,000

'

'

'

'

'

Other identifiable assets

'

'

'

'

'

'

8,000,000

'

'

'

'

'

Variable Interest Entity, Funded Notes Receivable

'

'

'

'

'

'

'

483,000,000

482,000,000

'

'

'

Variable interest entity net cash received (paid)

'

'

'

'

'

'

'

34,000,000

-136,000,000

'

'

'

Interest Income

'

'

'

'

'

'

'

35,000,000

29,000,000

'

'

'

Debt instrument interest rate

'

'

'

'

'

'

'

7.50%

'

'

'

'

Borrowings Scheduled Repayment, Period

'

'

'

'

'

'

'

4

'

'

'

'

Future allocated net income amount from variable interest entity

'

'

'

'

'

'

104,000,000

'

'

'

'

'

Loss Allocation Percentage

'

'

'

'

'

'

100.00%

100.00%

100.00%

'

'

'

Terms Of Put Arrangement

'

'

'

'

'

'

'

'

'

'

'

2.5

Minimum put amount for purchase of Harpo's joint venture interest in OWN, first put exercise date

'

'

'

'

'

'

'

'

'

'

'

100,000,000

Maximum put amount for purchase of Harpo's joint venture interest in OWN, fourth put exercise date

'

'

'

'

'

'

'

'

'

'

400,000,000

'

Put Right Obligations

$0

$0

'

'

'

'

'

$0

'

'

'

'

Investments_Narrative_Details

Investments (Narrative) (Details) (TF1 [Member], USD $)	Dec. 21, 2012
In Millions, unless otherwise specified
TF1 [Member]	'
Schedule of Investment Income, Reported Amounts, by Category [Line Items]	'
Equity method investments	$264

Investments_Investments_Schedu

Investments Investments (Schedule of Investments) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Schedule of Investments [Line Items]	'	'
Trading Securities	$129	$96
Equity method investments	1,087	1,095
Cost Method Investments	34	34
Investments	1,254	1,700
Common Stock [Member]	'	'
Schedule of Investments [Line Items]	'	'
Available-for-sale Securities	4	0
Money Market Funds [Member]	'	'
Schedule of Investments [Line Items]	'	'
Available-for-sale Securities	$0	$475

Fair_Value_Measurements_Narrat

Fair Value Measurements (Narrative) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
TF1 put right	$20,000,000	'
Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
TF1 put right	0	'
Long-term debt, fair value	6,600,000,000	5,900,000,000
Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
TF1 put right	$20,000,000	$14,000,000

Fair_Value_Measurements_Schedu

Fair Value Measurements (Schedule Of Assets And Liabilities Measured On Recurring Basis) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Trading securities	$129	$96
Available-for-sale securities	4	475
Total assets	146	571
Deferred compensation plan	129	96
Derivative Liabilities	1	2
TF1 put right	20	'
Total liabilities	150	98
Prepaid expenses and other current assets [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative Assets	4	'
Other Assets [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative Assets	9	'
Level 1 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Trading securities	129	96
Available-for-sale securities	4	475
Total assets	133	571
Deferred compensation plan	129	96
Derivative Liabilities	0	0
TF1 put right	0	'
Total liabilities	129	96
Level 1 [Member] | Prepaid expenses and other current assets [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative Assets	0	'
Level 1 [Member] | Other Assets [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative Assets	0	'
Level 2 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Trading securities	0	0
Available-for-sale securities	0	0
Total assets	13	0
Deferred compensation plan	0	0
Derivative Liabilities	1	2
TF1 put right	0	'
Total liabilities	1	2
Level 2 [Member] | Prepaid expenses and other current assets [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative Assets	4	'
Level 2 [Member] | Other Assets [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative Assets	9	'
Level 3 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Trading securities	0	0
Available-for-sale securities	0	0
Total assets	0	0
Deferred compensation plan	0	0
Derivative Liabilities	0	0
TF1 put right	20	14
Total liabilities	20	0
Level 3 [Member] | Prepaid expenses and other current assets [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative Assets	0	'
Level 3 [Member] | Other Assets [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Derivative Assets	$0	'

Content_Rights_Narrative_Detai

Content Rights (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2014
				Forecast [Member]
Amortization of unamortized content rights	'	'	'	$879
Content expense	1,290	940	912	'
Content impairments	$33	$33	$62	'
Percentage of Unamortized Content Rights	94.00%	'	'	'
Years from date of balance sheet	'P3Y	'	'	'

Content_Rights_Schedule_Of_Con

Content Rights (Schedule Of Content Rights) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Licensed content rights:	'	'
Content rights, at cost	$1,733	$612
Accumulated amortization	-3,389	-2,497
Total content rights, net	2,160	1,677
Content rights, net	-277	-122
Noncurrent portion	1,883	1,555
Media Content [Member]	'	'
Produced content rights:	'	'
Completed	3,566	2,724
In-production	334	308
Coproduced content rights:	'	'
Completed	637	566
In-production	84	76
Licensed content rights:	'	'
Acquired	880	483
Prepaid	48	17
Content rights, at cost	$5,549	$4,174

Property_And_Equipment_Narrati

Property And Equipment (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property and Equipment [Line Items]	'	'	'
Capital leased assets, gross	$238	$170	'
Capital Lease, Accumulated Amortization	98	73	'
Capitalized software costs, net	48	32	'
Depreciation expense	276	117	119
Rental expense for operating leases	94	60	70
Property and Equipment [Member]	'	'	'
Property and Equipment [Line Items]	'	'	'
Depreciation expense	$111	$88	$86

Property_And_Equipment_Compone

Property And Equipment (Components Of Property And Equipment) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Property, Plant and Equipment [Abstract]	'	'
Land, buildings and leasehold improvements	$318	$293
Broadcast equipment	556	429
Capitalized software costs	222	196
Office equipment, furniture, fixtures and other	301	253
Property and equipment, at cost	1,397	1,171
Accumulated depreciation	-883	-783
Property and equipment, net	$514	$388

Goodwill_And_Intangible_Assets2

Goodwill And Intangible Assets (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets, Period Increase (Decrease)	$954,000,000	'	'
Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets	1,100,000,000	'	'
Amortization expense, excluding impairment charges, related to finite-lived intangible assets	165,000,000	29,000,000	31,000,000
Goodwill, Impairment Loss	0	0	20,000,000
U.S. Networks [Member]	'	'	'
Accumulated impairments	$20,000,000	$20,000,000	'

Goodwill_And_Intangible_Assets3

Goodwill And Intangible Assets (Goodwill By Reportable Segment) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Line Items]	'	'
Goodwill, Beginning Balance	$6,399	$6,291
Acquisitions	949	106
Dispositions	-9	'
Foreign currency translation	2	2
Goodwill, Ending Balance	7,341	6,399
U.S. Networks [Member]	'	'
Goodwill [Line Items]	'	'
Goodwill, Beginning Balance	4,998	4,979
Acquisitions	0	19
Dispositions	-9	'
Foreign currency translation	0	0
Goodwill, Ending Balance	4,989	4,998
International Networks [Member]	'	'
Goodwill [Line Items]	'	'
Goodwill, Beginning Balance	1,382	1,293
Acquisitions	924	87
Dispositions	0	'
Foreign currency translation	1	2
Goodwill, Ending Balance	2,307	1,382
Education [Member]	'	'
Goodwill [Line Items]	'	'
Goodwill, Beginning Balance	19	19
Acquisitions	25	0
Dispositions	0	'
Foreign currency translation	1	0
Goodwill, Ending Balance	$45	$19

Goodwill_And_Intangible_Assets4

Goodwill And Intangible Assets (Schedule Of Intangible Assets Subject To Amortization) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]	'	'
Finite-Lived Intangible Assets, Gross	$1,733	$612
Accumulated Amortization	-332	-165
Finite-lived intangible assets net	1,401	447
Trademarks [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Weighted Average Amortization Period (Years)	'9 years	'
Finite-Lived Intangible Assets, Gross	432	40
Accumulated Amortization	-58	-24
Finite-lived intangible assets net	374	16
Customer Relationships [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Weighted Average Amortization Period (Years)	'16 years	'
Finite-Lived Intangible Assets, Gross	1,189	516
Accumulated Amortization	-262	-138
Finite-lived intangible assets net	927	378
Others [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Weighted Average Amortization Period (Years)	'13 years	'
Finite-Lived Intangible Assets, Gross	112	56
Accumulated Amortization	-12	-3
Finite-lived intangible assets net	$100	$53

Goodwill_And_Intangible_Assets5

Goodwill And Intangible Assets (Schedule Of Intangible Assets Not Subject To Amortization) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Indefinite-lived Intangible Assets by Major Class [Line Items]	'	'
Indefinite-lived intangible assets net (Trademarks)	$164	$164

Goodwill_And_Intangible_Assets6

Goodwill And Intangible Assets (Amortization Expense For Intangible Assets) (Details) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]	'
2014	$166
2015	150
2016	150
2017	141
2018	131
Thereafter	$663

Debt_Narrative_Details

Debt (Narrative) (Details) (USD $)

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Mar. 19, 2013

Mar. 19, 2013

Dec. 31, 2013

Dec. 31, 2012

Mar. 19, 2013

Dec. 31, 2013

Dec. 31, 2012

17-May-12

17-May-12

Dec. 31, 2013

Dec. 31, 2012

17-May-12

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

3.25% and 4.875% Senior Notes [Member]

3.25% Percent Senior Notes [Member]

3.25% Percent Senior Notes [Member]

3.25% Percent Senior Notes [Member]

4.875% Senior Notes [Member]

4.875% Senior Notes [Member]

4.875% Senior Notes [Member]

3.30% and 4.95% Senior Notes [Member]

3.30% Senior Notes [Member]

3.30% Senior Notes [Member]

3.30% Senior Notes [Member]

4.95% Senior Notes [Member]

4.95% Senior Notes [Member]

4.95% Senior Notes [Member]

Base Rate and Swing Line Loans [Member]

Base Rate and Swing Line Loans [Member]

Interest Rate, Scenario 1 [Member]

Interest Rate, Scenario 2 [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

Minimum [Member]

Maximum [Member]

Y

Minimum [Member]

Maximum [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term Debt, Gross

$6,515,000,000

$5,260,000,000

'

$1,200,000,000

$350,000,000

$350,000,000

$0

$850,000,000

$850,000,000

$0

$1,000,000,000

$500,000,000

$500,000,000

$500,000,000

$500,000,000

$500,000,000

$500,000,000

'

'

'

'

'

'

'

'

Debt instrument interest rate

'

'

'

'

3.25%

3.25%

'

4.88%

4.88%

'

'

3.30%

3.30%

'

4.95%

4.95%

'

'

'

'

'

'

'

'

'

Debt Instrument, Maturity Date

'

'

'

'

1-Apr-23

1-Apr-23

'

1-Apr-43

1-Apr-43

'

'

15-May-22

15-May-22

'

15-May-42

15-May-42

'

'

'

'

'

'

'

'

'

Proceeds from issuance of long-term debt

1,186,000,000

981,000,000

639,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument total discount

'

'

'

2,000,000

'

'

'

'

'

'

8,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deferred financing costs

'

'

'

12,000,000

'

'

'

'

'

'

9,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Basis Spread on Variable Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.00%

0.45%

'

'

'

'

0.78%

1.45%

Line Of Credit, Reference Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.50%

1.00%

'

'

'

'

Line of Credit Facility, Commitment Fee Percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.10%

0.30%

Line of Credit Facility, Maximum Borrowing Capacity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000,000,000

'

'

'

Line of credit extension

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2

'

'

Line of Credit Facility, Expiration Date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

12-Oct-17

'

'

'

Line of Credit Facility, Amount Outstanding

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$0

'

'

'

Debt_Outstanding_Debt_Details

Debt (Outstanding Debt) (Details) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

17-May-12

Dec. 31, 2013

Mar. 19, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

17-May-12

Dec. 31, 2013

Mar. 19, 2013

Dec. 31, 2012

3.70% Senior Notes [Member]

3.70% Senior Notes [Member]

5.625% Senior Notes [Member]

5.625% Senior Notes [Member]

5.05% Senior Notes [Member]

5.05% Senior Notes [Member]

4.375% Senior Notes [Member]

4.375% Senior Notes [Member]

3.30% Senior Notes [Member]

3.30% Senior Notes [Member]

3.30% Senior Notes [Member]

3.25% Percent Senior Notes [Member]

3.25% Percent Senior Notes [Member]

3.25% Percent Senior Notes [Member]

6.35% Senior Notes [Member]

6.35% Senior Notes [Member]

4.95% Senior Notes [Member]

4.95% Senior Notes [Member]

4.95% Senior Notes [Member]

4.875% Senior Notes [Member]

4.875% Senior Notes [Member]

4.875% Senior Notes [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total debt

$6,515,000,000

$5,260,000,000

$850,000,000

$850,000,000

$500,000,000

$500,000,000

$1,300,000,000

$1,300,000,000

$650,000,000

$650,000,000

$500,000,000

$500,000,000

$500,000,000

$350,000,000

$350,000,000

$0

$850,000,000

$850,000,000

$500,000,000

$500,000,000

$500,000,000

$850,000,000

$850,000,000

$0

Capital Lease And Other Obligations

165,000,000

110,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unamortized discount

-16,000,000

-17,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt, net

6,499,000,000

5,243,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Current portion of debt

-17,000,000

-31,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Noncurrent portion of debt

$6,482,000,000

$5,212,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt_Parenthetical_Details

Debt (Parenthetical) (Details)

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

17-May-12

Dec. 31, 2013

Mar. 19, 2013

Dec. 31, 2013

Dec. 31, 2013

17-May-12

Dec. 31, 2013

Mar. 19, 2013

Dec. 31, 2013

3.70% Senior Notes [Member]

5.625% Senior Notes [Member]

5.05% Senior Notes [Member]

4.375% Senior Notes [Member]

3.30% Senior Notes [Member]

3.30% Senior Notes [Member]

3.25% Percent Senior Notes [Member]

3.25% Percent Senior Notes [Member]

6.35% Senior Notes [Member]

4.95% Senior Notes [Member]

4.95% Senior Notes [Member]

4.875% Senior Notes [Member]

4.875% Senior Notes [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term debt, stated interest rate

3.70%

5.63%

5.05%

4.38%

3.30%

3.30%

3.25%

3.25%

6.35%

4.95%

4.95%

4.88%

4.88%

Long-term debt, frequency of periodic payments

'semi-annual

'semi-annual

'semi-annual

'semi-annual

'

'semi-annual

'

'semi-annual

'semi-annual

'

'semi-annual

'

'semi-annual

Debt Instrument, Maturity Date

1-Jun-15

15-Aug-19

1-Jun-20

15-Jun-21

15-May-22

15-May-22

1-Apr-23

1-Apr-23

1-Jun-40

15-May-42

15-May-42

1-Apr-43

1-Apr-43

Debt_Schedule_Of_Debt_Payments

Debt (Schedule Of Debt Payments) (Details) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Extinguishment of Debt [Line Items]	'
2014	$0
2015	850
2016	0
2017	0
2018	0
Thereafter	$5,500

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Narrative) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'	'
Notional amount of foreign exchange contracts in connection with forecasted business combinations	$0	'
Notional Amount of Interest Rate Derivatives	0	0
Derivative assets and liabilities able to offset under master netting agreements	$0	$0

Derivative_Financial_Instrumen3

Derivative Financial Instruments Derivative Financial Instruments (Schedule of Notional Amounts and Fair Value) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Designated as Hedging Instrument [Member] | Prepaid expenses and other current assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative, Notional Amount	$16	$0
Derivative Asset, Fair Value	4	0
Designated as Hedging Instrument [Member] | Other Assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative, Notional Amount	36	0
Derivative Asset, Fair Value	9	0
Not Designated as Hedging Instrument [Member] | Prepaid expenses and other current assets [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative, Notional Amount	0	661
Derivative Asset, Fair Value	0	0
Not Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative, Notional Amount	4	56
Derivative Liability, Fair Value	1	2
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Other noncurrent liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative, Notional Amount	3	0
Derivative Liability, Fair Value	0	0
Put Option [Member] | Not Designated as Hedging Instrument [Member] | Other noncurrent liabilities [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative, Notional Amount	574	0
Derivative Liability, Fair Value	$20	$0

Derivative_Financial_Instrumen4

Derivative Financial Instruments (Impact Of Derivative Instruments On Income And Other Comprehensive Income (Loss) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Realized losses on derivative instruments not designated as hedging instruments	($62)	($2)	($1)
Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Amount recognized in other comprehensive income (loss), gross of tax	10	0	0
Reclassification of (gains) losses from accumulated OCI into income	-1	0	0
Designated as Hedging Instrument [Member] | Interest Rate Contracts [Member]	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Amount recognized in other comprehensive income (loss), gross of tax	0	-2	0
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Realized losses on derivative instruments not designated as hedging instruments	-56	-2	-1
Not Designated as Hedging Instrument [Member] | Put Option [Member]	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Unrealized losses recognized in other (expense) income, net on TF1 put right	($6)	$0	$0

Redeemable_Noncontrolling_Inte3

Redeemable Noncontrolling Interest (Narrative) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Jan. 10, 2013	Dec. 31, 2013	Apr. 09, 2013
In Millions, unless otherwise specified			Discovery Japan [Member]	Discovery Japan [Member]	SBS Nordic [Member]	SBS Nordic [Member]
				Y		Y
Redeemable Noncontrolling Interests	$36	$0	'	$35	'	$6
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	20.00%	'	20.00%	'	20.00%	'
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners, Discovery Japan and SBS	20.00%	'	20.00%	'	20.00%	'
Terms Of Put Arrangement	'	'	'	4	'	0.53

Redeemable_Noncontrolling_Inte4

Redeemable Noncontrolling Interest (Schedule of Redeemable Noncontrolling Interest) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Increase (Decrease) In Redeemable Noncontrolling Interest [Roll Forward]	'
Carrying value of redeemable noncontrolling interest, beginning of period	$0
Initial fair value of redeemable noncontrolling interests of acquired businesses	41
Net income attributable to redeemable noncontrolling interests	1
Other comprehensive loss attributable to redeemable noncontrolling interests	-3
Currency translation on redemption values	-5
Redemption value to floor	2
Carrying value of redeemable noncontrolling interest, end of period	$36

Equity_Narrative_Details

Equity (Narrative) (Details) (USD $)

0 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

Apr. 05, 2013

Dec. 28, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Sep. 17, 2008

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Feb. 13, 2014

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Sep. 17, 2008

Apr. 05, 2013

Dec. 28, 2012

Dec. 31, 2013

Dec. 31, 2012

Sep. 17, 2008

Dec. 31, 2013

Dec. 31, 2013

Feb. 03, 2014

Dec. 31, 2013

Sep. 17, 2008

Sep. 17, 2008

Apr. 05, 2013

Common Stock [Member]

Series A Common Stock [Member]

Series B Convertible Common Stock [Member]

Series B Convertible Common Stock [Member]

Series B Convertible Common Stock [Member]

Series C Common Stock [Member]

Series A Convertible Preferred Stock [Member]

Series A Convertible Preferred Stock [Member]

Series A Convertible Preferred Stock [Member]

Series C Convertible Preferred Stock [Member]

Series C Convertible Preferred Stock [Member]

Series C Convertible Preferred Stock [Member]

Series C Convertible Preferred Stock [Member]

Series C Convertible Preferred Stock [Member]

Preferred Stock, undesignated [Member]

Preferred Stock [Member]

Expiration of repurchase program on February 3, 2016 [Member]

Expiration on repurchase program on December 11, 2014 [Member]

Advance Newhouse [Member]

Advance Newhouse [Member]

Advance Programming Holdings, LLC [Member]

Forecast [Member]

Forecast [Member]

Series A Convertible Preferred Stock [Member]

Series C Convertible Preferred Stock [Member]

Series C Convertible Preferred Stock [Member]

Class of Stock [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of stock classes

'

'

'

'

'

'

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2

'

'

'

'

'

Common Stock, Voting Rights

'

'

'

'

'

'

'

'1

'10

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common Stock Conversion Option

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Voting and purchase rights subject to agreement between Dr. Malone and David Zaslav

'

'

'

'

'

'

'

'

'

'

5,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Temporary equity automatic conversion, percentage

'

'

'

'

'

'

'

'

'

'

'

'

80.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred Stock Conversion Option

'

'

'

'

'

'

'

'

'

'

'

'

1

'

'

'

'

1

'

'

'

'

'

'

'

'

'

Share Conversion

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

550,000

8,400,000

'

'

'

'

'

'

'

'

'

'

Convertible preferred stock, liquidation preference

'

'

'

'

'

'

'

'

'

'

'

'

$0.01

'

'

'

'

$0.01

'

'

'

'

'

'

'

'

'

Repurchases of preferred stock, shares

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,000,000

Payment for repurchase of preferred stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$256,000,000

Remaining authorization

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

470,000,000

'

'

'

Treasury Stock, Shares

'

'

'

'

'

'

'

2,800,000

'

'

'

70,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Treasury Stock, Value

'

'

3,531,000,000

2,482,000,000

'

'

'

171,000,000

'

'

'

3,400,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred stock, shares authorized

'

'

150,000,000

'

'

'

'

'

100,000,000

100,000,000

'

'

75,000,000

75,000,000

'

'

'

75,000,000

75,000,000

'

50,000,000

'

'

'

'

'

'

Noncash stock dividends declared, preferred shares

'

'

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred stock released from escrow

'

'

0

0

0

'

'

'

7,000,000

7,000,000

'

'

71,000,000

71,000,000

'

'

'

44,000,000

49,000,000

'

'

'

'

'

70,000,000

70,000,000

'

Gain or loss on conversion of preferred stock

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Convertible preferred shares held in escrow

'

'

'

'

'

1,600,000

'

'

'

'

'

'

'

'

800,000

'

'

'

'

800,000

'

'

'

'

'

'

'

Authorization under the stock repurchase program

'

'

$4,000,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$1,500,000,000

'

'

'

'

Equity_Stock_Repurchase_Progra

Equity (Stock Repurchase Program) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Equity, Class of Treasury Stock [Line Items]	'	'	'
Stock Repurchased	14.1	28.5	27.2
Payments for Repurchase of Common Stock	$1,049	$1,380	$997
Series A Common Stock [Member]	'	'	'
Equity, Class of Treasury Stock [Line Items]	'	'	'
Stock Repurchased	0.8	2	0
Payments for Repurchase of Common Stock	62	109	0
Series C Common Stock [Member]	'	'	'
Equity, Class of Treasury Stock [Line Items]	'	'	'
Stock Repurchased	13.3	26.5	27.2
Payments for Repurchase of Common Stock	$987	$1,271	$997

Equity_Tax_Effects_Related_To_

Equity (Tax Effects Related To Other Comprehensive Income (Loss)) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	$16	$21	$15
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment Realized upon Sale or Liquidation, before Tax	-9	0	0
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax	13	-2	0
Market Value Adjustments And Reclassifications For Securities And Derivatives Before Tax	-1	0	0
Other Comprehensive Income (Loss), before Tax	19	19	15
Other Comprehensive Income (Loss), Foreign Currency Translation Gain (Loss) Arising During Period, Tax	-21	7	-5
Other Comprehensive Income (Loss), Foreign Currency Translation Reclassification Adjustment Realized upon Sale or Liquidation, Tax	3	0	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	-4	1	0
Market Value Adjustment And Reclassification For Securities And Derivatives Tax Amount	0	0	0
Other Comprehensive Income (Loss), Tax	-22	8	-5
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	-5	28	10
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment Realized upon Sale or Liquidation, Net of Tax	-6	0	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	9	-1	0
Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax	-1	0	0
Other Comprehensive Income (Loss), Net of Tax	($3)	$27	$10

Equity_Schedule_Of_Change_In_C

Equity (Schedule Of Change In Components Of Accumulated Other Comprehensive Loss) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated other comprehensive income, Beginning balance	$4	($23)	($33)
Other comprehensive income (loss) arising during the period except for reclassifications, net of tax	4	27	10
Other comprehensive income (loss), reclassification adjustments, net of tax	-7	'	'
Other Comprehensive Income (Loss), Net of Tax	-3	27	10
Other comprehensive loss (income) attributable to redeemable noncontrolling interests	3	'	'
Accumulated other comprehensive income, Ending balance	4	4	-23
Foreign Currency [Member]	'	'	'
Accumulated other comprehensive income, Beginning balance	-1	-29	-39
Other comprehensive income (loss) arising during the period except for reclassifications, net of tax	-5	28	10
Other comprehensive income (loss), reclassification adjustments, net of tax	-6	'	'
Other Comprehensive Income (Loss), Net of Tax	-11	'	'
Other comprehensive loss (income) attributable to redeemable noncontrolling interests	4	'	'
Accumulated other comprehensive income, Ending balance	-8	-1	-29
Fair Value Adjustments on Hedges and Derivative Contracts [Member]	'	'	'
Accumulated other comprehensive income, Beginning balance	5	6	6
Other comprehensive income (loss) arising during the period except for reclassifications, net of tax	9	-1	0
Other comprehensive income (loss), reclassification adjustments, net of tax	-1	'	'
Other Comprehensive Income (Loss), Net of Tax	8	'	'
Other comprehensive loss (income) attributable to redeemable noncontrolling interests	-1	'	'
Accumulated other comprehensive income, Ending balance	$12	$5	$6

EquityBased_Compensation_Narra

Equity-Based Compensation (Narrative) (Details) (USD $)

12 Months Ended

12 Months Ended

In Millions, except Share data, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2015

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

SARs [Member]

SARs [Member]

SARs [Member]

Unit Awards [Member]

Unit Awards [Member]

Unit Awards [Member]

Performance Based Restricted Stock Units [Member]

Restricted Stock Units (RSUs) [Member]

Stock Options [Member]

Stock Options [Member]

Stock Options [Member]

Employee Stock Purchase Plan [Member]

Employee Stock Purchase Plan [Member]

Employee Stock Purchase Plan [Member]

Forecast [Member]

Forecast [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Y

Y

Unit Awards [Member]

Unit Awards [Member]

Performance Based Restricted Stock Units [Member]

Restricted Stock Units (RSUs) [Member]

Stock Options [Member]

Performance Based Restricted Stock Units [Member]

Restricted Stock Units (RSUs) [Member]

Stock Options [Member]

D

Y

Y

Y

Y

Y

Y

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized

33,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

5,000,000

'

'

'

'

'

'

'

'

'

'

Future grant under the incentive plans

23,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total liabilities for cash-settled awards

$138

$80

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Current portion of equity-based compensation liabilities

85

55

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of days preceding closing to determine vesting price and grant price

'

'

'

'

'

'

10

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number Of Days Subsequent Closing To Determine Vesting Price And Grant Price

'

'

'

'

'

'

10

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Award Vesting Period

'

'

'

'

'

'

4

'

'

'

'

'

'

'

'

'

'

'

'

3

1

3

4

4

4

Unit Award Settlement Period

'

'

'

'

'

'

60

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted-average fair value Of SARs outstanding

'

'

'

$35.02

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash payments made to settle vested SARs and Unit Awards

'

'

'

11

1

1

53

44

125

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrecognized compensation cost

'

'

'

38

'

'

17

'

'

20

22

35

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted average period of time, in years, compensation expense related to units is expected to be recognized

'

'

'

'475 days

'

'

'1 year

'

'

'8 months

'2 years

'635 days

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number

'

'

'

'

'

'

'

'

'

'

'

7,600,000

9,000,000

'

'

'

'

600,000

1,000,000

'

'

'

'

'

'

Weighted Average Fair Value Of Dap Units Outstanding

'

'

'

'

'

'

$49.56

$28.49

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash proceeds from equity-based plans, net

51

84

61

'

'

'

'

'

'

'

'

46

80

60

'

'

'

'

'

'

'

'

'

'

'

Share Based Compensation Arrangement By Share Based Payment Award Other Than Options Unvested Outstanding Aggregate Intrinsic Value

'

'

'

113

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value

'

'

'

'

'

'

'

'

'

'

'

$24.46

$16.94

$14.32

'

'

'

'

'

'

'

'

'

'

'

Exercised, Aggregate Intrinsic Value

'

'

'

'

'

'

'

'

'

'

'

130

148

99

'

'

'

'

'

'

'

'

'

'

'

Stock option expiration term (years)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3

'

'

10

Performance target for measurement period, years

'

'

'

'

'

'

'

'

'

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

PRSU vesting range minimum percentage

'

'

'

'

'

'

'

'

'

0.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

PRSU vesting range maximum percentage

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Performance Based Restricted Stock Units Series Common Conversion Rate

'

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based performance target, percentage

'

'

'

'

'

'

'

'

'

80.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding, End of Period

'

'

'

3,200,000

1,800,000

'

1,600,000

3,100,000

'

1,600,000

1,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding as of end of period, Weighted-average grant price

'

'

'

$55.20

$41.13

'

$38.46

$34.78

'

$43.12

$52.15

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of common stock closing price for DESPP purchase price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

85.00%

'

'

'

'

'

'

'

'

'

'

Shares issued under DESPP

'

'

'

'

'

'

'

'

'

'

'

'

'

'

71,000

84,000

0

'

'

'

'

'

'

'

'

Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Excluding Stock Options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$5

$4

$0

'

'

'

'

'

'

'

'

EquityBased_Compensation_Equit

Equity-Based Compensation (Equity-Based Compensation Expense) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Total equity-based compensation expense	$190	$154	$99
Tax benefit recognized	51	45	35
SARs [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Total equity-based compensation expense	63	21	1
Unit Awards [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Total equity-based compensation expense	60	68	39
PRSUs And RSUs [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Total equity-based compensation expense	41	36	23
Stock Options [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Total equity-based compensation expense	25	29	36
Employee Stock Purchase Plan [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Total equity-based compensation expense	$1	$0	$0

EquityBased_Compensation_SARs_

Equity-Based Compensation (SARs) (Details) (SARs [Member], USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013
SARs [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Outstanding, Beginning of Period	1.8
Granted	1.9
Settled	-0.5
Outstanding, End of Period	3.2
Vested and expected to vest as of end of period	3.2
Outstanding as of beginning of period, Weighted-Average Grant Price	$41.13
Granted, Weighted-Average Grant Price	$65.30
Settled, Weighted-Average Grant Price	$41.25
Outstanding as of end of period, Weighted-average grant price	$55.20
Vested and expected to vest as of end of period, Weighted-Average Grant Price	$55.19
Outstanding as of end of period, Weighted-Average Remaining Contractual Term (years)	'504 days
Vested and expected to vest as of end of period, Weighted-Average Remaining Contractual Term (years)	'504 days
Settled as of end of period, Aggregate Fair Value	$11
Outstanding as of end of period, Aggregate Fair Value	113
Vested and expected to vest as of end of period, Aggregate Fair Value	$113

EquityBased_Compensation_Weigh

Equity-Based Compensation (Weighted-Average Assumptions Used to Determine Fair Value, SARs) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Dividend yield	0.00%	'	'
SARs [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Risk-free interest rate	0.45%	0.29%	0.75%
Expected term (years)	'504 days	'595 days	'1489 days
Expected volatility	22.77%	26.31%	37.53%
Dividend yield	0.00%	0.00%	0.00%

EquityBased_Compensation_Unit_

Equity-Based Compensation (Unit Awards) (Details) (Unit Awards [Member], USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013
Unit Awards [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Outstanding, Beginning of Period	3.1
Settled	-1.5
Outstanding, End of Period	1.6
Vested and expected to vest as of end of period	1.6
Outstanding as of beginning of period, Weighted-Average Grant Price	$34.78
Settled, Weighted-Average Grant Price	$30.78
Outstanding as of end of period, Weighted-average grant price	$38.46
Vested and expected to vest as of end of period, Weighted-Average Grant Price	$38.46
Outstanding as of end of period, Weighted-Average Remaining Contractual Term (years)	'131 days
Vested and expected to vest as of end of period, Weighted-Average Remaining Contractual Term (years)	'131 days
Settled, Aggregate Intrinsic Value	$53
Outstanding as of end of period Aggregate Intrinsic Value	81
Vested and expected to vest as of end of period, Aggregate Intrinsic Value	$81

EquityBased_Compensation_Weigh1

Equity-Based Compensation (Weighted-Average Assumptions Used to Determine Fair Value, Unit Awards) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Dividend yield	0.00%	'	'
Unit Awards [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Risk-free interest rate	0.16%	0.18%	0.19%
Expected term (years)	'131 days	'266 days	'372 days
Expected volatility	21.13%	25.46%	32.84%
Dividend yield	0.00%	0.00%	0.00%

EquityBased_Compensation_PRSUs

Equity-Based Compensation (PRSUs And RSUs) (Details) (PRSUs And RSUs [Member], USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013
PRSUs And RSUs [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Outstanding, Beginning of Period	2,900,000
Granted	300,000
Converted	-700,000
Forfeited	-100,000
Outstanding, End of Period	2,400,000
Vested and expected to vest as of end of period	2,300,000
Outstanding as of beginning of period, Weighted-Average Grant Price	$39.66
Granted, Weighted-Average Grant Price	$75.08
Converted, Weighted-Average Grant Price	$33.77
Forfeited, Weighted-Average Grant Price	$53.86
Outstanding as of end of period, Weighted-average grant price	$46
Vested and expected to vest as of end of period, Weighted-Average Grant Price	$45.54
Outstanding as of end of period, Weighted-Average Remaining Contractual Term (years)	'380 days
Vested and expected to vest as of end of period, Weighted-Average Remaining Contractual Term (years)	'362 days
Converted, Aggregate Fair Value	$48
Outstanding as of end of period, Aggregate Fair Value	220
Vested and expected to vest as of end of period, Aggregate Fair Value	$211

EquityBased_Compensation_Stock

Equity-Based Compensation (Stock Options) (Details) (Stock Options [Member], USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Options [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Outstanding as of beginning of period	9	'	'
Granted, Stock Options	1	'	'
Exercised, Stock Options	-2.2	'	'
Forfeited, Stock Options	-0.2	'	'
Outstanding as of end of period	7.6	9	'
Vested and expected to vest as of beginning of period	7.4	'	'
Exercisable as of end of period	4.7	'	'
Outstanding as of beginning of period, Weighted-Average Grant Price	$28.53	'	'
Granted, Weighted-Average Grant Price	$75.25	'	'
Exercised, Weighted-Average Grant Price	$21.18	'	'
Forfeited, Weighted-Average Grant Price	$52.91	'	'
Outstanding as of end of period, Weighted-Average Grant Price	$36.47	$28.53	'
Vested and expected to vest, Weighted Average Exercise Price	$35.86	'	'
Exercisable as of end of period, Weighted-Average Grant Price	$26.08	'	'
Outstanding as of end of period, Weighted-Average Remaining Contractual Term (years)	'1672 days	'	'
Vested and expected to vest as of end of period, Weighted-Average Remaining Contractual Term (years)	'1675 days	'	'
Exercisable as of end of period, Weighted-Average Remaining Contractual Term (years)	'1580 days	'	'
Exercised, Aggregate Intrinsic Value	$130	$148	$99
Outstanding as of end of period, Aggregate Intrinsic Value	410	'	'
Vested and expected to vest as of end of period, Aggregate Intrinsic Value	403	'	'
Exercisable as of end of period, Aggregate Intrinsic Value	$304	'	'

EquityBased_Compensation_Weigh2

Equity-Based Compensation (Weighted-Average Assumptions Used to Determine Fair Value, Stock Options) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Dividend yield	0.00%	'	'
Stock Options [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Risk-free interest rate	0.79%	1.02%	1.53%
Expected term (years)	'1814 days	'1814 days	'1818 days
Expected volatility	35.97%	38.33%	40.17%
Dividend yield	0.00%	0.00%	0.00%

Retirement_Savings_Plans_Detai

Retirement Savings Plans (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Compensation and Retirement Disclosure [Abstract]	'	'	'
Employer matching contributions	$28	$16	$14
Maximum percentage of compensation to SRP	50.00%	'	'

Exit_And_Restructuring_Charges2

Exit And Restructuring Charges (Exit And Restructuring Charges, By Reporting Segment) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]	'	'	'
Exit and restructuring charges	$16	$6	$10
U.S. Networks [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Exit and restructuring charges	4	3	4
International Networks [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Exit and restructuring charges	11	1	3
Corporate [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Exit and restructuring charges	$1	$2	$3

Exit_And_Restructuring_Charges3

Exit And Restructuring Charges (Changes In Exit And Restructuring Liabilities) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]	'	'	'
Exit and restructuring Liabilities, Beginning Balance	$6	$9	$15
Exit and restructuring charges, net accruals	16	6	10
Exit and restructuring charges, cash paid	-15	-9	-16
Exit and restructuring Liabilities, Ending Balance	7	6	9
Contract Termination Costs [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Exit and restructuring Liabilities, Beginning Balance	3	4	5
Exit and restructuring charges, net accruals	0	1	0
Exit and restructuring charges, cash paid	-1	-2	-1
Exit and restructuring Liabilities, Ending Balance	2	3	4
Employee Relocation/Terminations [Member]	'	'	'
Restructuring Cost and Reserve [Line Items]	'	'	'
Exit and restructuring Liabilities, Beginning Balance	3	5	10
Exit and restructuring charges, net accruals	16	5	10
Exit and restructuring charges, cash paid	-14	-7	-15
Exit and restructuring Liabilities, Ending Balance	$5	$3	$5

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2014
				Forecast [Member]
Income tax benefit related to foreign tax credits	'	'	($112)	'
Undistributed foreign earnings	278	'	'	'
Federal statutory tax rate	35.00%	35.00%	35.00%	'
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	131	109	35	'
Unrecognized tax benefits related to tax positions could decrease in next twelve months	'	'	'	21
Accrued interest and penalties on unrecognized tax benefits	$11	$9	$3	'

Income_Taxes_Schedule_Of_Compo

Income Taxes (Schedule Of Components Of Income From Continuing Operations Before Income Taxes) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Domestic	$1,104	$869	$1,015
Foreign	632	649	548
Income from continuing operations before income taxes	$1,736	$1,518	$1,563

Income_Taxes_Schedule_Of_Compo1

Income Taxes (Schedule Of Components Of Provision For Income Taxes) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Federal current	$333	$419	$253
State and local taxes, current	68	95	38
Foreign current	175	118	109
Current income tax expense	576	632	400
Federal deferred	113	-69	17
State and local taxes deferred	-2	9	13
Foreign deferred	-28	-10	-3
Deferred income tax expense (benefit)	83	-70	27
Provision for income taxes	$659	$562	$427

Income_Taxes_Schedule_Of_Effec

Income Taxes (Schedule Of Effective Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
U.S. federal statutory income tax rate	35.00%	35.00%	35.00%
State and local income taxes, net of federal income taxes	3.00%	5.00%	2.00%
Effect of foreign operations	2.00%	-1.00%	-1.00%
Domestic production activity deductions	-2.00%	-3.00%	-2.00%
Remeasurement gain on previously held equity interest	-2.00%	0.00%	0.00%
Foreign Tax Credit Benefit	0.00%	0.00%	-7.00%
Non-deductible goodwill	0.00%	0.00%	-1.00%
Other, net	2.00%	1.00%	1.00%
Effective income tax rate	38.00%	37.00%	27.00%

Income_Taxes_Components_Of_Def

Income Taxes (Components Of Deferred Tax Assets And Liabilities) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Income Tax Disclosure [Abstract]	'	'
Accounts receivable	$3	$2
Tax attribute carry-forward	126	198
Unrealized loss on derivatives, investments and foreign currency translation adjustments	2	26
Accrued liabilities and other	202	117
Total deferred income tax assets	333	343
Valuation allowance	-18	-23
Net deferred income tax assets	315	320
Intangible assets	-421	-178
Content rights	-280	-173
Equity method investments	-131	-117
Notes receivable	-16	-17
Other	-31	-33
Total deferred income tax liabilities	-879	-518
Net deferred income tax liabilities	($564)	($198)

Income_Taxes_Schedule_Of_Defer

Income Taxes (Schedule Of Deferred Income Tax Assets And Liabilities In Statement Of Financial Position) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Income Tax Disclosure [Abstract]	'	'
Deferred income tax assets	$73	$74
Deferred income tax liabilities	-637	-272
Net deferred income tax liabilities	($564)	($198)

Income_Taxes_Income_Taxes_Sche

Income Taxes Income Taxes (Schedule of Operating Loss Carryforwards) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Federal [Member]	'
Operating Loss Carryforwards [Line Items]	'
Operating Loss Carryforwards	9	[1]
Deferred Tax Assets, Tax Deferred Expense, Other	3	[1]
Valuation Allowance, Amount	0	[1]
State [Member]	'
Operating Loss Carryforwards [Line Items]	'
Operating Loss Carryforwards	574
Deferred Tax Assets, Tax Deferred Expense, Other	14
Valuation Allowance, Amount	-11
Foreign [Member]	'
Operating Loss Carryforwards [Line Items]	'
Operating Loss Carryforwards	55
Deferred Tax Assets, Tax Deferred Expense, Other	13
Valuation Allowance, Amount	-7
Minimum [Member] | Federal [Member]	'
Operating Loss Carryforwards [Line Items]	'
Operating Loss Carryforwards, Expiration Dates	'2028	[1]
Minimum [Member] | State [Member]	'
Operating Loss Carryforwards [Line Items]	'
Operating Loss Carryforwards, Expiration Dates	'2014
Minimum [Member] | Foreign [Member]	'
Operating Loss Carryforwards [Line Items]	'
Operating Loss Carryforwards, Expiration Dates	'2014
[1]	(a) The use of the federal operating loss carry-forwards is subject to annual limitations.

Income_Taxes_Schedule_Of_Unrec

Income Taxes (Schedule Of Unrecognized Tax Benefits Reconciliation) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Beginning balance, unrecognized tax benefits	$128	$46	$63
Additions based on tax positions related to the current year	25	48	15
Additions for tax positions of prior years	36	39	7
Unrecognized Tax Benefits, Increases Resulting from Acquisition	9	0	0
Reductions for tax positions of prior years	-8	-4	-20
Settlements	-3	-1	-1
Reductions as result of statute lapse	-2	0	-18
Ending balance, unrecognized tax benefits	$185	$128	$46

Earnings_Per_Share_Reconciliat

Earnings Per Share (Reconciliation Of Income And Weighted Average Number Of Shares Outstanding) (Details) (USD $)

3 Months Ended

12 Months Ended

In Millions, except Per Share data, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Earnings Per Share [Abstract]

'

'

'

'

'

'

'

'

'

'

'

Income from continuing operations, net of taxes

$290

[1]

$256

[1]

$300

[1]

$231

[1]

$224

[1],[2]

$215

[2]

$294

[2]

$223

[2]

$1,077

$956

$1,136

Net income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

-1

-2

-1

Net income attributable to redeemable noncontrolling interest

'

'

'

'

'

'

'

'

-1

0

0

Redeemable noncontrolling interest adjustments to redemption value

'

'

'

'

'

'

'

'

-2

0

0

Income from continuing operations available to Discovery Communications, Inc. stockholders, net of taxes

'

'

'

'

'

'

'

'

1,073

954

1,135

Loss from discontinued operations available to Discovery Communications, Inc. stockholders, net of taxes

'

'

'

'

'

'

'

'

0

-11

-3

Net income available to Discovery Communications, Inc. stockholders

$288

[1]

$255

[1]

$297

[1]

$233

[1]

$224

[1],[2]

$205

[2]

$293

[2]

$221

[2]

$1,073

$943

$1,132

Weighted average shares outstanding - basic

'

'

'

'

'

'

'

'

357

376

401

Weighted average dilutive effect of equity awards

'

'

'

'

'

'

'

'

4

4

4

Weighted average shares outstanding - diluted

'

'

'

'

'

'

'

'

361

380

405

Basic earnings per share available to Discovery Communications, Inc. stockholders

'

'

'

'

'

'

'

'

'

'

'

Continuing operations

$0.82

[3]

$0.72

[3]

$0.83

[3]

$0.64

[3]

$0.61

[3]

$0.58

[3]

$0.77

[3]

$0.58

[3]

$3.01

$2.54

$2.83

Discontinued operations

$0

[3]

$0

[3]

$0

[3]

$0

[3]

$0

[3]

($0.02)

[3]

$0

[3]

$0

[3]

$0

($0.03)

($0.01)

Net income

$0.82

[3]

$0.72

[3]

$0.83

[3]

$0.64

[3]

$0.61

[3]

$0.55

[3]

$0.77

[3]

$0.57

[3]

$3.01

$2.51

$2.82

Diluted earnings per share available to Discovery Communications, Inc. stockholders

'

'

'

'

'

'

'

'

'

'

'

Continuing operations

$0.81

[3]

$0.71

[3]

$0.82

[3]

$0.63

[3]

$0.61

[3]

$0.57

[3]

$0.77

[3]

$0.57

[3]

$2.97

$2.51

$2.80

Discontinued operations

$0

[3]

$0

[3]

$0

[3]

$0

[3]

$0

[3]

($0.02)

[3]

$0

[3]

$0

[3]

$0

($0.03)

($0.01)

Net income

$0.81

[3]

$0.71

[3]

$0.82

[3]

$0.63

[3]

$0.61

[3]

$0.55

[3]

$0.76

[3]

$0.57

[3]

$2.97

$2.48

$2.80

[1]

(b)On April 9, 2013, the Company acquired SBS Nordic. During the year ended DecemberB 31, 2012, the Company acquired Switchover Media and a television station in Dubai. The Company included the operations of each of these acquisitions in the Company's consolidated financial statements as of each of their respective acquisition dates. (See Note 3.)

[2]

(c)On September 17, 2012, the Company sold its postproduction audio business, CSS Studios, LLC, whose results of operations have been reclassified to discontinued operations for all quarterly periods presented. (See Note 3.)

[3]

(a)Income per share amounts for each quarter are calculated independently and may not add to annual amounts.

Earnings_Per_Share_Schedule_of

Earnings Per Share (Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share) (Details)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Options and RSU [Member] [Member]	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'
Anti-dilutive securities excluded from computation of earnings per share, amount	1	0	1
PRSUs [Member]	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'
Anti-dilutive securities excluded from computation of earnings per share, amount	1	2	1

Supplemental_Disclosures_Valua

Supplemental Disclosures (Valuation And Qualifying Accounts) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance For Doubtful Accounts [Member]	'	'	'
Beginning of Year	$12	$12	$13
Additions	6	4	2
Write-offs	-2	-4	-3
Utilization	0	0	0
End of Year	16	12	12
Deferred Tax Valuation Allowance [Member]	'	'	'
Beginning of Year	23	24	13
Additions	7	8	11
Write-offs	-11	-9	0
Utilization	1	0	0
End of Year	$18	$23	$24

Supplemental_Disclosures_Sched

Supplemental Disclosures (Schedule Of Accrued Liabilities) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Disclosure Text Block Supplement [Abstract]	'	'
Accrued payroll and related benefits	$373	$275
Content rights payable	212	131
Current portion of equity-based compensation liabilities	85	55
Accrued Interest	43	30
Accrued income taxes	71	59
Other accrued liabilities	208	171
Total accrued liabilities	$992	$721

Supplemental_Disclosures_Sched1

Supplemental Disclosures (Schedule Of Other (Expense) Income, Net) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Text Block Supplement [Abstract]	'	'	'
Remeasurement gain on previously held equity interest	$92	$0	$0
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	-62	-2	-1
Other, net	-4	-1	4
Other income (expense), net	$26	($3)	$3

Supplemental_Disclosures_Sched2

Supplemental Disclosures (Schedule of Equity-Based Compensation Financing Activities) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Supplemental Cash Flow Elements [Abstract]	'	'	'
Tax settlements associated with equity-based plans	($22)	($3)	($1)
Cash proceeds from equity-based plans, net	51	84	61
Excess tax benefits from stock-based compensation	44	38	28
Proceeds from equity-based plans, net	$73	$119	$88

Related_Party_Transactions_Nar

Related Party Transactions (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Board of Directors Chairman [Member] | Liberty Global [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Aggregate equity voting power percentage	27.00%	'	'
Board of Directors Chairman [Member] | Liberty Media [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Aggregate equity voting power percentage	47.00%	'	'
Equity Method Investee [Member]	'	'	'
Related Party Transaction [Line Items]	'	'	'
Related party transactions, funded revenue	$2	$38	$34

Related_Party_Transactions_Sch

Related Party Transactions (Schedule of Related Party Transactions, Revenue) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Related Party Transaction [Line Items]	'		'		'
Related Party Transaction, Revenues from Transactions with Related Party	$223		$155		$148
Related Party Transaction, Expenses from Transactions with Related Party	-27		-22		-34
Liberty Group [Member]	'		'		'
Related Party Transaction [Line Items]	'		'		'
Related Party Transaction, Revenues from Transactions with Related Party	120	[1]	54	[1]	49
Equity Method Investments [Member]	'		'		'
Related Party Transaction [Line Items]	'		'		'
Related Party Transaction, Revenues from Transactions with Related Party	75	[2]	94		88
Interest Income	35	[3]	29	[3]	17	[3]
OtherRelatedParties [Member]	'		'		'
Related Party Transaction [Line Items]	'		'		'
Related Party Transaction, Revenues from Transactions with Related Party	$28		$7		$11
[1]	(a) The increase in revenue from transactions with the Liberty Group is primarily attributable to activity with Virgin Media, Inc. ("Virgin Media") and Charter Communications, Inc. ("Charter"). In June 2013, Liberty Global announced it had completed its acquisition of Virgin Media. In May 2013 Liberty Media completed its equity method investment in Charter; Dr. Malone is on Charter's board of directors. Transactions with Virgin Media and Charter are reported as related party transactions from the date they became related parties.
[2]	(b) The decrease in revenue from transactions with equity method investees is primarily attributable to the consolidation of Discovery Japan and lower content sales to OWN.
[3]	(c) The Company records interest earnings from loans to equity method investees as a component of income (loss) from equity method investees, net, in the consolidated statements of operations. (See Note 4.)

Related_Party_Schedule_of_Rela

Related Party (Schedule of Related Party Transactions Receivables) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Related Party Transaction [Line Items]	'	'
Due from Related Parties, Current	$41	$23
OWN Joint Venture [Member]	'	'
Related Party Transaction [Line Items]	'	'
Variable Interest Entity, Funded Notes Receivable	$483	$482

Commitments_And_Contingencies_1

Commitments And Contingencies (Narrative) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Jan. 21, 2014
			TF1 [Member]
			Forecast [Member]
Commitments and Contingencies [Line Items]	'	'	'
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	20.00%	'	49.00%
Future Funding Commitment to Equity Method Investees	$17,000,000	'	'
Put right obligations	0	0	'
TF1 put right	20,000,000	'	'
Material amounts for indemnifications or other contingencies	0	0	'
Loss Contingency Accrual, at Carrying Value	$0	$0	'

Commitments_And_Contingencies_2

Commitments And Contingencies (Schedule Of Significant Contractual Commitments) (Details) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
2014	$739
2015	371
2016	279
2017	223
2018	164
Thereafter	573
Total minimum payments	2,349
Less amounts representing interest	-71
Total	2,278
Operating Lease [Member]	'
2014	72
2015	74
2016	66
2017	60
2018	47
Thereafter	142
Operating Leases, Future Minimum Payments Due	461
Less amounts representing interest	0
Total	461
Capital Lease [Member]	'
2014	26
2015	27
2016	25
2017	21
2018	18
Thereafter	119
Capital Leases, Future Minimum Payments Due	236
Less amounts representing interest	-71
Total	165
Content [Member]	'
2014	392
2015	84
2016	54
2017	29
2018	7
Thereafter	0
Total minimum payments	566
Less amounts representing interest	0
Total	566
Other [Member]	'
2014	249
2015	186
2016	134
2017	113
2018	92
Thereafter	312
Total minimum payments	1,086
Less amounts representing interest	0
Total	$1,086

Reportable_Segments_Schedule_O

Reportable Segments (Schedule Of Revenues By Segment) (Details) (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Total revenues

$1,537

[1]

$1,375

[1]

$1,467

[1]

$1,156

[1]

$1,200

[1],[2]

$1,076

[2]

$1,126

[2]

$1,085

[2]

$5,535

$4,487

$4,168

U.S. Networks [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues by Segment

'

'

'

'

'

'

'

'

2,952

2,748

2,619

International Networks [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues by Segment

'

'

'

'

'

'

'

'

2,474

1,637

1,455

Education [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues by Segment

'

'

'

'

'

'

'

'

114

105

95

Corporate And Inter-Segment Eliminations [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Revenues by Segment

'

'

'

'

'

'

'

'

($5)

($3)

($1)

[1]

(b)On April 9, 2013, the Company acquired SBS Nordic. During the year ended DecemberB 31, 2012, the Company acquired Switchover Media and a television station in Dubai. The Company included the operations of each of these acquisitions in the Company's consolidated financial statements as of each of their respective acquisition dates. (See Note 3.)

[2]

(c)On September 17, 2012, the Company sold its postproduction audio business, CSS Studios, LLC, whose results of operations have been reclassified to discontinued operations for all quarterly periods presented. (See Note 3.)

Reportable_Segments_Schedule_O1

Reportable Segments (Schedule Of Adjusted OIBDA By Segment) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]	'	'	'
Total Adjusted OIBDA	$2,425	$2,095	$1,916
U.S. Networks [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total Adjusted OIBDA	1,708	1,622	1,495
International Networks [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total Adjusted OIBDA	976	721	645
Education [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total Adjusted OIBDA	27	27	25
Corporate And Inter-Segment Eliminations [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total Adjusted OIBDA	($286)	($275)	($249)

Reportable_Segments_Schedule_O2

Reportable Segments (Schedule Of Reconciliation Of Adjusted OIDBA To Operating Income) (Details) (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Segment Reporting [Abstract]

'

'

'

'

'

'

'

'

'

'

'

Total Adjusted OIBDA

'

'

'

'

'

'

'

'

$2,425

$2,095

$1,916

Amortization of deferred launch incentives

'

'

'

'

'

'

'

'

-18

-20

-52

Mark-to-market stock-based compensation

'

'

'

'

'

'

'

'

-136

-97

-43

Depreciation and amortization

'

'

'

'

'

'

'

'

-276

-117

-117

Restructuring and impairment charges

'

'

'

'

'

'

'

'

-16

-6

-30

Gain on disposition

'

'

'

'

'

'

'

'

19

0

129

Operating income

$521

[1]

$499

[1]

$564

[1]

$414

[1]

$481

[1],[2]

$438

[2]

$488

[2]

$448

[2]

$1,998

$1,855

$1,803

[1]

(b)On April 9, 2013, the Company acquired SBS Nordic. During the year ended DecemberB 31, 2012, the Company acquired Switchover Media and a television station in Dubai. The Company included the operations of each of these acquisitions in the Company's consolidated financial statements as of each of their respective acquisition dates. (See Note 3.)

[2]

(c)On September 17, 2012, the Company sold its postproduction audio business, CSS Studios, LLC, whose results of operations have been reclassified to discontinued operations for all quarterly periods presented. (See Note 3.)

Reportable_Segments_Schedule_O3

Reportable Segments (Schedule Of Total Assets By Segment) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Segment Reporting Information [Line Items]	'	'
Total assets	$14,979	$12,930
U.S. Networks [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Total assets	2,978	2,878
International Networks [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Total assets	4,792	1,984
Education [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Total assets	125	63
Corporate And Inter-Segment Eliminations [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Total assets	$7,084	$8,005

Reportable_Segments_Schedule_O4

Reportable Segments (Schedule Of Content Amortization And Impairment Expense By Segment) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]	'	'	'
Total content amortization and impairment expense	$1,190	$865	$846
U.S. Networks [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total content amortization and impairment expense	626	558	567
International Networks [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total content amortization and impairment expense	564	302	270
Education [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total content amortization and impairment expense	3	2	4
Corporate And Inter-Segment Eliminations [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total content amortization and impairment expense	($3)	$3	$5

Reportable_Segments_Schedule_O5

Reportable Segments (Schedule Of Revenues By Country) (Details) (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Total revenues

$1,537

[1]

$1,375

[1]

$1,467

[1]

$1,156

[1]

$1,200

[1],[2]

$1,076

[2]

$1,126

[2]

$1,085

[2]

$5,535

$4,487

$4,168

United States [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Total revenues

'

'

'

'

'

'

'

'

3,071

2,871

2,717

Non-U.S [Member]

'

'

'

'

'

'

'

'

'

'

'

Segment Reporting Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Total revenues

'

'

'

'

'

'

'

'

$2,464

$1,616

$1,451

[1]

(b)On April 9, 2013, the Company acquired SBS Nordic. During the year ended DecemberB 31, 2012, the Company acquired Switchover Media and a television station in Dubai. The Company included the operations of each of these acquisitions in the Company's consolidated financial statements as of each of their respective acquisition dates. (See Note 3.)

[2]

(c)On September 17, 2012, the Company sold its postproduction audio business, CSS Studios, LLC, whose results of operations have been reclassified to discontinued operations for all quarterly periods presented. (See Note 3.)

Reportable_Segments_Schedule_O6

Reportable Segments (Schedule Of Property And Equipment By Country) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Segment Reporting Information [Line Items]	'	'
Property and equipment, net	$514	$388
United States [Member]	'	'
Segment Reporting Information [Line Items]	'	'
Property and equipment, net	261	260
United Kingdom	'	'
Segment Reporting Information [Line Items]	'	'
Property and equipment, net	115	105
Other Non U.S.	'	'
Segment Reporting Information [Line Items]	'	'
Property and equipment, net	$138	$23

Selected_Quarterly_Financial_D2

Selected Quarterly Financial Data (Unaudited) (Details) (USD $)	3 Months Ended																12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Total revenues	$1,537	[1]	$1,375	[1]	$1,467	[1]	$1,156	[1]	$1,200	[1],[2]	$1,076	[2]	$1,126	[2]	$1,085	[2]	$5,535	$4,487	$4,168
Operating income	521	[1]	499	[1]	564	[1]	414	[1]	481	[1],[2]	438	[2]	488	[2]	448	[2]	1,998	1,855	1,803
Income from continuing operations, net of taxes	290	[1]	256	[1]	300	[1]	231	[1]	224	[1],[2]	215	[2]	294	[2]	223	[2]	1,077	956	1,136
Loss from discontinued operations, net of taxes	0	[1]	0	[1]	0	[1]	0	[1]	0	[1],[2]	-9	[2]	-1	[2]	-1	[2]	0	-11	-3
Net income	290	[1]	256	[1]	300	[1]	231	[1]	224	[1],[2]	206	[2]	293	[2]	222	[2]	1,077	945	1,133
Net income available to Discovery Communications, Inc. stockholders	$288	[1]	$255	[1]	$297	[1]	$233	[1]	$224	[1],[2]	$205	[2]	$293	[2]	$221	[2]	$1,073	$943	$1,132
Basic earnings per share available to Discovery Communications, Inc. stockholders	'		'		'		'		'		'		'		'		'	'	'
Continuing operations	$0.82	[3]	$0.72	[3]	$0.83	[3]	$0.64	[3]	$0.61	[3]	$0.58	[3]	$0.77	[3]	$0.58	[3]	$3.01	$2.54	$2.83
Discontinued operations	$0	[3]	$0	[3]	$0	[3]	$0	[3]	$0	[3]	($0.02)	[3]	$0	[3]	$0	[3]	$0	($0.03)	($0.01)
Net income	$0.82	[3]	$0.72	[3]	$0.83	[3]	$0.64	[3]	$0.61	[3]	$0.55	[3]	$0.77	[3]	$0.57	[3]	$3.01	$2.51	$2.82
Diluted earnings per share available to Discovery Communications, Inc. stockholders	'		'		'		'		'		'		'		'		'	'	'
Continuing operations	$0.81	[3]	$0.71	[3]	$0.82	[3]	$0.63	[3]	$0.61	[3]	$0.57	[3]	$0.77	[3]	$0.57	[3]	$2.97	$2.51	$2.80
Discontinued operations	$0	[3]	$0	[3]	$0	[3]	$0	[3]	$0	[3]	($0.02)	[3]	$0	[3]	$0	[3]	$0	($0.03)	($0.01)
Net income	$0.81	[3]	$0.71	[3]	$0.82	[3]	$0.63	[3]	$0.61	[3]	$0.55	[3]	$0.76	[3]	$0.57	[3]	$2.97	$2.48	$2.80
Weighted average shares outstanding:	'		'		'		'		'		'		'		'		'	'	'
Basic	'		'		'		'		'		'		'		'		357	376	401
Diluted	'		'		'		'		'		'		'		'		361	380	405
[1]	(b)On April 9, 2013, the Company acquired SBS Nordic. During the year ended DecemberB 31, 2012, the Company acquired Switchover Media and a television station in Dubai. The Company included the operations of each of these acquisitions in the Company's consolidated financial statements as of each of their respective acquisition dates. (See Note 3.)
[2]	(c)On September 17, 2012, the Company sold its postproduction audio business, CSS Studios, LLC, whose results of operations have been reclassified to discontinued operations for all quarterly periods presented. (See Note 3.)
[3]	(a)Income per share amounts for each quarter are calculated independently and may not add to annual amounts.

Condensed_Consolidating_Financ2

Condensed Consolidating Financial Information (Narrative) (Details)	Dec. 31, 2013
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Direct ownership percentage in Discovery Communications Holding, LLC	33.30%
Indirect ownership percentage in Discovery Communications Holding, LLC	66.70%

Condensed_Consolidating_Financ3

Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheet) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Millions, unless otherwise specified
Cash and cash equivalents	$408	$1,201	$1,048	$466
Receivables, net	1,371	1,130	'	'
Content rights, net	277	122	'	'
Deferred income taxes	73	74	'	'
Prepaid expenses and other current assets	281	203	'	'
Total current assets	2,410	2,730	'	'
Noncurrent content rights, net	1,883	1,555	'	'
Goodwill	7,341	6,399	6,291	'
Intangible Assets, Net (Excluding Goodwill)	1,565	611	'	'
Equity method investments	1,087	1,095	'	'
Other noncurrent assets	179	152	'	'
Total assets	14,979	12,930	'	'
Current portion of debt	17	31	'	'
Total current liabilities	1,294	946	'	'
Noncurrent portion of debt	6,482	5,212	'	'
Other noncurrent liabilities	333	207	'	'
Total liabilities	8,746	6,637	'	'
Redeemable Noncontrolling Interests	36	0	'	'
Equity attributable to Discovery Communications, Inc.	6,196	6,291	'	'
Noncontrolling interests	1	2	'	'
Total equity	6,197	6,293	6,519	6,233
Total liabilities and equity	14,979	12,930	'	'
Discovery [Member]	'	'	'	'
Cash and cash equivalents	0	0	0	0
Receivables, net	0	0	'	'
Content rights, net	0	0	'	'
Deferred income taxes	0	0	'	'
Prepaid expenses and other current assets	52	46	'	'
Intercompany Trade Receivables, Net	0	0	'	'
Total current assets	52	46	'	'
Investment in and advances to consolidated subsidiaries	6,147	6,246	'	'
Noncurrent content rights, net	0	0	'	'
Goodwill	0	0	'	'
Intangible Assets, Net (Excluding Goodwill)	0	0	'	'
Equity method investments	0	0	'	'
Other noncurrent assets	0	0	'	'
Total assets	6,199	6,292	'	'
Current portion of debt	0	0	'	'
Other current liabilities	1	0	'	'
Intercompany Trade Payables, Net	0	0	'	'
Total current liabilities	1	0	'	'
Noncurrent portion of debt	0	0	'	'
Other noncurrent liabilities	2	1	'	'
Total liabilities	3	1	'	'
Redeemable Noncontrolling Interests	0	'	'	'
Equity and advances attributable to Discovery Communications, Inc.	6,196	6,291	'	'
Noncontrolling interests	0	0	'	'
Total equity	6,196	6,291	'	'
Total liabilities and equity	6,199	6,292	'	'
Discovery Communications Holding, LLC [Member]	'	'	'	'
Cash and cash equivalents	0	0	0	0
Receivables, net	0	0	'	'
Content rights, net	0	0	'	'
Deferred income taxes	0	0	'	'
Prepaid expenses and other current assets	0	0	'	'
Intercompany Trade Receivables, Net	0	0	'	'
Total current assets	0	0	'	'
Investment in and advances to consolidated subsidiaries	6,155	6,264	'	'
Noncurrent content rights, net	0	0	'	'
Goodwill	0	0	'	'
Intangible Assets, Net (Excluding Goodwill)	0	0	'	'
Equity method investments	0	0	'	'
Other noncurrent assets	19	20	'	'
Total assets	6,174	6,284	'	'
Current portion of debt	0	0	'	'
Other current liabilities	6	17	'	'
Intercompany Trade Payables, Net	0	0	'	'
Total current liabilities	6	17	'	'
Noncurrent portion of debt	0	0	'	'
Other noncurrent liabilities	0	0	'	'
Total liabilities	6	17	'	'
Redeemable Noncontrolling Interests	0	'	'	'
Equity and advances attributable to Discovery Communications, Inc.	6,168	6,267	'	'
Noncontrolling interests	0	0	'	'
Total equity	6,168	6,267	'	'
Total liabilities and equity	6,174	6,284	'	'
Discovery Communications, LLC [Member]	'	'	'	'
Cash and cash equivalents	123	1,022	964	369
Receivables, net	449	406	'	'
Content rights, net	12	7	'	'
Deferred income taxes	31	33	'	'
Prepaid expenses and other current assets	143	106	'	'
Intercompany Trade Receivables, Net	286	96	'	'
Total current assets	1,044	1,670	'	'
Investment in and advances to consolidated subsidiaries	7,135	5,305	'	'
Noncurrent content rights, net	615	599	'	'
Goodwill	3,769	3,769	'	'
Intangible Assets, Net (Excluding Goodwill)	320	332	'	'
Equity method investments	330	339	'	'
Other noncurrent assets	173	173	'	'
Total assets	13,386	12,187	'	'
Current portion of debt	5	7	'	'
Other current liabilities	421	362	'	'
Intercompany Trade Payables, Net	0	0	'	'
Total current liabilities	426	369	'	'
Noncurrent portion of debt	6,343	5,146	'	'
Other noncurrent liabilities	462	408	'	'
Total liabilities	7,231	5,923	'	'
Redeemable Noncontrolling Interests	0	'	'	'
Equity and advances attributable to Discovery Communications, Inc.	6,155	6,264	'	'
Noncontrolling interests	0	0	'	'
Total equity	6,155	6,264	'	'
Total liabilities and equity	13,386	12,187	'	'
Non-Guarantor Subsidiaries Of Discovery Communications, LLC [Member]	'	'	'	'
Cash and cash equivalents	285	179	83	93
Receivables, net	922	725	'	'
Content rights, net	265	115	'	'
Deferred income taxes	42	34	'	'
Prepaid expenses and other current assets	86	51	'	'
Intercompany Trade Receivables, Net	0	0	'	'
Total current assets	1,600	1,104	'	'
Investment in and advances to consolidated subsidiaries	0	0	'	'
Noncurrent content rights, net	1,268	956	'	'
Goodwill	3,572	2,630	'	'
Intangible Assets, Net (Excluding Goodwill)	1,245	279	'	'
Equity method investments	757	756	'	'
Other noncurrent assets	521	367	'	'
Total assets	8,963	6,092	'	'
Current portion of debt	12	24	'	'
Other current liabilities	849	537	'	'
Intercompany Trade Payables, Net	286	96	'	'
Total current liabilities	1,147	657	'	'
Noncurrent portion of debt	139	66	'	'
Other noncurrent liabilities	505	62	'	'
Total liabilities	1,791	785	'	'
Redeemable Noncontrolling Interests	36	'	'	'
Equity and advances attributable to Discovery Communications, Inc.	7,135	5,307	'	'
Noncontrolling interests	1	0	'	'
Total equity	7,136	5,307	'	'
Total liabilities and equity	8,963	6,092	'	'
Other Non - Guarantor Subsidiaries Of Discovery Communications, Inc. [Member]	'	'	'	'
Cash and cash equivalents	0	0	1	4
Receivables, net	0	0	'	'
Content rights, net	0	0	'	'
Deferred income taxes	0	0	'	'
Prepaid expenses and other current assets	0	0	'	'
Intercompany Trade Receivables, Net	0	0	'	'
Total current assets	0	0	'	'
Investment in and advances to consolidated subsidiaries	4,112	4,178	'	'
Noncurrent content rights, net	0	0	'	'
Goodwill	0	0	'	'
Intangible Assets, Net (Excluding Goodwill)	0	0	'	'
Equity method investments	0	0	'	'
Other noncurrent assets	0	0	'	'
Total assets	4,112	4,178	'	'
Current portion of debt	0	0	'	'
Other current liabilities	0	0	'	'
Intercompany Trade Payables, Net	0	0	'	'
Total current liabilities	0	0	'	'
Noncurrent portion of debt	0	0	'	'
Other noncurrent liabilities	21	21	'	'
Total liabilities	21	21	'	'
Redeemable Noncontrolling Interests	0	'	'	'
Equity and advances attributable to Discovery Communications, Inc.	4,091	4,157	'	'
Noncontrolling interests	0	0	'	'
Total equity	4,091	4,157	'	'
Total liabilities and equity	4,112	4,178	'	'
Reclassifications And Eliminations [Member]	'	'	'	'
Cash and cash equivalents	0	0	0	0
Receivables, net	0	-1	'	'
Content rights, net	0	0	'	'
Deferred income taxes	0	7	'	'
Prepaid expenses and other current assets	0	0	'	'
Intercompany Trade Receivables, Net	-286	-96	'	'
Total current assets	-286	-90	'	'
Investment in and advances to consolidated subsidiaries	-23,549	-21,993	'	'
Noncurrent content rights, net	0	0	'	'
Goodwill	0	0	'	'
Intangible Assets, Net (Excluding Goodwill)	0	0	'	'
Equity method investments	0	0	'	'
Other noncurrent assets	-20	-20	'	'
Total assets	-23,855	-22,103	'	'
Current portion of debt	0	0	'	'
Other current liabilities	0	-1	'	'
Intercompany Trade Payables, Net	-286	-96	'	'
Total current liabilities	-286	-97	'	'
Noncurrent portion of debt	0	0	'	'
Other noncurrent liabilities	-20	-13	'	'
Total liabilities	-306	-110	'	'
Redeemable Noncontrolling Interests	0	'	'	'
Equity and advances attributable to Discovery Communications, Inc.	-23,549	-21,995	'	'
Noncontrolling interests	0	2	'	'
Total equity	-23,549	-21,993	'	'
Total liabilities and equity	-23,855	-22,103	'	'
Discovery Communications, Inc. And Subsidiaries [Member]	'	'	'	'
Cash and cash equivalents	408	1,201	1,048	466
Receivables, net	1,371	1,130	'	'
Content rights, net	277	122	'	'
Deferred income taxes	73	74	'	'
Prepaid expenses and other current assets	281	203	'	'
Intercompany Trade Receivables, Net	0	0	'	'
Total current assets	2,410	2,730	'	'
Investment in and advances to consolidated subsidiaries	0	0	'	'
Noncurrent content rights, net	1,883	1,555	'	'
Goodwill	7,341	6,399	'	'
Intangible Assets, Net (Excluding Goodwill)	1,565	611	'	'
Equity method investments	1,087	1,095	'	'
Other noncurrent assets	693	540	'	'
Total assets	14,979	12,930	'	'
Current portion of debt	17	31	'	'
Other current liabilities	1,277	915	'	'
Intercompany Trade Payables, Net	0	0	'	'
Total current liabilities	1,294	946	'	'
Noncurrent portion of debt	6,482	5,212	'	'
Other noncurrent liabilities	970	479	'	'
Total liabilities	8,746	6,637	'	'
Redeemable Noncontrolling Interests	36	'	'	'
Equity and advances attributable to Discovery Communications, Inc.	6,196	6,291	'	'
Noncontrolling interests	1	2	'	'
Total equity	6,197	6,293	'	'
Total liabilities and equity	$14,979	$12,930	'	'

Condensed_Consolidating_Financ4

Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Operations) (Details) (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Revenues

$1,537

[1]

$1,375

[1]

$1,467

[1]

$1,156

[1]

$1,200

[1],[2]

$1,076

[2]

$1,126

[2]

$1,085

[2]

$5,535

$4,487

$4,168

Costs of revenues, excluding depreciation and amortization

'

'

'

'

'

'

'

'

1,689

1,218

1,176

Selling, general and administrative

'

'

'

'

'

'

'

'

1,575

1,291

1,171

Depreciation and amortization

'

'

'

'

'

'

'

'

276

117

117

Restructuring charges

'

'

'

'

'

'

'

'

16

6

30

Gain on disposition

'

'

'

'

'

'

'

'

-19

0

-129

Total costs and expenses

'

'

'

'

'

'

'

'

3,537

2,632

2,365

Operating (loss) income

521

[1]

499

[1]

564

[1]

414

[1]

481

[1],[2]

438

[2]

488

[2]

448

[2]

1,998

1,855

1,803

Interest expense

'

'

'

'

'

'

'

'

-306

-248

-208

Income (loss) from equity investees, net

'

'

'

'

'

'

'

'

18

-86

-35

Other income (expense), net

'

'

'

'

'

'

'

'

26

-3

3

Income from continuing operations before income taxes

'

'

'

'

'

'

'

'

1,736

1,518

1,563

Benefit from (provision for) income taxes

'

'

'

'

'

'

'

'

-659

-562

-427

Income from continuing operations, net of taxes

290

[1]

256

[1]

300

[1]

231

[1]

224

[1],[2]

215

[2]

294

[2]

223

[2]

1,077

956

1,136

Loss from discontinued operations, net of taxes

0

[1]

0

[1]

0

[1]

0

[1]

0

[1],[2]

-9

[2]

-1

[2]

-1

[2]

0

-11

-3

Net income

290

[1]

256

[1]

300

[1]

231

[1]

224

[1],[2]

206

[2]

293

[2]

222

[2]

1,077

945

1,133

Net income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

-1

-2

-1

Net income attributable to redeemable noncontrolling interest

'

'

'

'

'

'

'

'

-1

0

0

Net income attributable to Discovery Communications, Inc.

'

'

'

'

'

'

'

'

1,075

943

1,132

Discovery [Member]

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

0

0

0

Costs of revenues, excluding depreciation and amortization

'

'

'

'

'

'

'

'

0

0

0

Selling, general and administrative

'

'

'

'

'

'

'

'

15

13

11

Depreciation and amortization

'

'

'

'

'

'

'

'

0

0

0

Restructuring charges

'

'

'

'

'

'

'

'

0

0

0

Gain on disposition

'

'

'

'

'

'

'

'

0

'

0

Total costs and expenses

'

'

'

'

'

'

'

'

15

13

11

Operating (loss) income

'

'

'

'

'

'

'

'

-15

-13

-11

Equity in earnings of subsidiaries

'

'

'

'

'

'

'

'

1,084

939

1,139

Interest expense

'

'

'

'

'

'

'

'

0

0

0

Income (loss) from equity investees, net

'

'

'

'

'

'

'

'

0

0

0

Other income (expense), net

'

'

'

'

'

'

'

'

0

13

0

Income from continuing operations before income taxes

'

'

'

'

'

'

'

'

1,069

939

1,128

Benefit from (provision for) income taxes

'

'

'

'

'

'

'

'

6

4

4

Income from continuing operations, net of taxes

'

'

'

'

'

'

'

'

'

943

1,132

Loss from discontinued operations, net of taxes

'

'

'

'

'

'

'

'

'

0

0

Net income

'

'

'

'

'

'

'

'

1,075

943

1,132

Net income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

0

0

0

Net income attributable to redeemable noncontrolling interest

'

'

'

'

'

'

'

'

0

'

'

Net income attributable to Discovery Communications, Inc.

'

'

'

'

'

'

'

'

1,075

943

1,132

Discovery Communications Holding, LLC [Member]

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

0

0

0

Costs of revenues, excluding depreciation and amortization

'

'

'

'

'

'

'

'

0

0

0

Selling, general and administrative

'

'

'

'

'

'

'

'

0

0

0

Depreciation and amortization

'

'

'

'

'

'

'

'

0

0

0

Restructuring charges

'

'

'

'

'

'

'

'

0

0

0

Gain on disposition

'

'

'

'

'

'

'

'

0

'

0

Total costs and expenses

'

'

'

'

'

'

'

'

0

0

0

Operating (loss) income

'

'

'

'

'

'

'

'

0

0

0

Equity in earnings of subsidiaries

'

'

'

'

'

'

'

'

1,084

965

1,141

Interest expense

'

'

'

'

'

'

'

'

0

0

0

Income (loss) from equity investees, net

'

'

'

'

'

'

'

'

0

0

0

Other income (expense), net

'

'

'

'

'

'

'

'

0

2

0

Income from continuing operations before income taxes

'

'

'

'

'

'

'

'

1,084

967

1,141

Benefit from (provision for) income taxes

'

'

'

'

'

'

'

'

0

0

0

Income from continuing operations, net of taxes

'

'

'

'

'

'

'

'

'

967

1,141

Loss from discontinued operations, net of taxes

'

'

'

'

'

'

'

'

'

0

0

Net income

'

'

'

'

'

'

'

'

1,084

967

1,141

Net income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

0

0

0

Net income attributable to redeemable noncontrolling interest

'

'

'

'

'

'

'

'

0

'

'

Net income attributable to Discovery Communications, Inc.

'

'

'

'

'

'

'

'

1,084

967

1,141

Discovery Communications, LLC [Member]

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

1,867

1,796

1,764

Costs of revenues, excluding depreciation and amortization

'

'

'

'

'

'

'

'

445

399

423

Selling, general and administrative

'

'

'

'

'

'

'

'

267

279

360

Depreciation and amortization

'

'

'

'

'

'

'

'

36

36

38

Restructuring charges

'

'

'

'

'

'

'

'

1

2

6

Gain on disposition

'

'

'

'

'

'

'

'

0

'

0

Total costs and expenses

'

'

'

'

'

'

'

'

749

716

827

Operating (loss) income

'

'

'

'

'

'

'

'

1,118

1,080

937

Equity in earnings of subsidiaries

'

'

'

'

'

'

'

'

620

444

625

Interest expense

'

'

'

'

'

'

'

'

-299

-242

-203

Income (loss) from equity investees, net

'

'

'

'

'

'

'

'

4

3

4

Other income (expense), net

'

'

'

'

'

'

'

'

-53

-1

-1

Income from continuing operations before income taxes

'

'

'

'

'

'

'

'

1,390

1,284

1,362

Benefit from (provision for) income taxes

'

'

'

'

'

'

'

'

-306

-319

-221

Income from continuing operations, net of taxes

'

'

'

'

'

'

'

'

'

965

1,141

Loss from discontinued operations, net of taxes

'

'

'

'

'

'

'

'

'

0

0

Net income

'

'

'

'

'

'

'

'

1,084

965

1,141

Net income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

0

0

0

Net income attributable to redeemable noncontrolling interest

'

'

'

'

'

'

'

'

0

'

'

Net income attributable to Discovery Communications, Inc.

'

'

'

'

'

'

'

'

1,084

965

1,141

Non-Guarantor Subsidiaries Of Discovery Communications, LLC [Member]

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

3,678

2,704

2,415

Costs of revenues, excluding depreciation and amortization

'

'

'

'

'

'

'

'

1,252

830

761

Selling, general and administrative

'

'

'

'

'

'

'

'

1,295

1,001

802

Depreciation and amortization

'

'

'

'

'

'

'

'

240

81

80

Restructuring charges

'

'

'

'

'

'

'

'

15

4

24

Gain on disposition

'

'

'

'

'

'

'

'

-19

'

-129

Total costs and expenses

'

'

'

'

'

'

'

'

2,783

1,916

1,538

Operating (loss) income

'

'

'

'

'

'

'

'

895

788

877

Equity in earnings of subsidiaries

'

'

'

'

'

'

'

'

0

0

0

Interest expense

'

'

'

'

'

'

'

'

-7

-6

-5

Income (loss) from equity investees, net

'

'

'

'

'

'

'

'

14

-89

-39

Other income (expense), net

'

'

'

'

'

'

'

'

79

0

4

Income from continuing operations before income taxes

'

'

'

'

'

'

'

'

981

693

837

Benefit from (provision for) income taxes

'

'

'

'

'

'

'

'

-359

-247

-210

Income from continuing operations, net of taxes

'

'

'

'

'

'

'

'

'

446

627

Loss from discontinued operations, net of taxes

'

'

'

'

'

'

'

'

'

0

-1

Net income

'

'

'

'

'

'

'

'

622

446

626

Net income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

0

0

0

Net income attributable to redeemable noncontrolling interest

'

'

'

'

'

'

'

'

0

'

'

Net income attributable to Discovery Communications, Inc.

'

'

'

'

'

'

'

'

622

446

626

Other Non - Guarantor Subsidiaries Of Discovery Communications, Inc. [Member]

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

0

0

0

Costs of revenues, excluding depreciation and amortization

'

'

'

'

'

'

'

'

0

0

0

Selling, general and administrative

'

'

'

'

'

'

'

'

0

0

0

Depreciation and amortization

'

'

'

'

'

'

'

'

0

0

0

Restructuring charges

'

'

'

'

'

'

'

'

0

0

0

Gain on disposition

'

'

'

'

'

'

'

'

0

'

0

Total costs and expenses

'

'

'

'

'

'

'

'

0

0

0

Operating (loss) income

'

'

'

'

'

'

'

'

0

0

0

Equity in earnings of subsidiaries

'

'

'

'

'

'

'

'

723

645

760

Interest expense

'

'

'

'

'

'

'

'

0

0

0

Income (loss) from equity investees, net

'

'

'

'

'

'

'

'

0

0

0

Other income (expense), net

'

'

'

'

'

'

'

'

0

0

1

Income from continuing operations before income taxes

'

'

'

'

'

'

'

'

723

645

761

Benefit from (provision for) income taxes

'

'

'

'

'

'

'

'

0

0

0

Income from continuing operations, net of taxes

'

'

'

'

'

'

'

'

'

645

761

Loss from discontinued operations, net of taxes

'

'

'

'

'

'

'

'

'

-28

-2

Net income

'

'

'

'

'

'

'

'

723

617

759

Net income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

0

0

0

Net income attributable to redeemable noncontrolling interest

'

'

'

'

'

'

'

'

0

'

'

Net income attributable to Discovery Communications, Inc.

'

'

'

'

'

'

'

'

723

617

759

Reclassifications And Eliminations [Member]

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

-10

-13

-11

Costs of revenues, excluding depreciation and amortization

'

'

'

'

'

'

'

'

-8

-11

-8

Selling, general and administrative

'

'

'

'

'

'

'

'

-2

-2

-2

Depreciation and amortization

'

'

'

'

'

'

'

'

0

0

-1

Restructuring charges

'

'

'

'

'

'

'

'

0

0

0

Gain on disposition

'

'

'

'

'

'

'

'

0

'

0

Total costs and expenses

'

'

'

'

'

'

'

'

-10

-13

-11

Operating (loss) income

'

'

'

'

'

'

'

'

0

0

0

Equity in earnings of subsidiaries

'

'

'

'

'

'

'

'

-3,511

-2,993

-3,665

Interest expense

'

'

'

'

'

'

'

'

0

0

0

Income (loss) from equity investees, net

'

'

'

'

'

'

'

'

0

0

0

Other income (expense), net

'

'

'

'

'

'

'

'

0

-17

-1

Income from continuing operations before income taxes

'

'

'

'

'

'

'

'

-3,511

-3,010

-3,666

Benefit from (provision for) income taxes

'

'

'

'

'

'

'

'

0

0

0

Income from continuing operations, net of taxes

'

'

'

'

'

'

'

'

'

-3,010

-3,666

Loss from discontinued operations, net of taxes

'

'

'

'

'

'

'

'

'

17

0

Net income

'

'

'

'

'

'

'

'

-3,511

-2,993

-3,666

Net income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

-1

-2

-1

Net income attributable to redeemable noncontrolling interest

'

'

'

'

'

'

'

'

-1

'

'

Net income attributable to Discovery Communications, Inc.

'

'

'

'

'

'

'

'

-3,513

-2,995

-3,667

Discovery Communications, Inc. And Subsidiaries [Member]

'

'

'

'

'

'

'

'

'

'

'

Revenues

'

'

'

'

'

'

'

'

5,535

4,487

4,168

Costs of revenues, excluding depreciation and amortization

'

'

'

'

'

'

'

'

1,689

1,218

1,176

Selling, general and administrative

'

'

'

'

'

'

'

'

1,575

1,291

1,171

Depreciation and amortization

'

'

'

'

'

'

'

'

276

117

117

Restructuring charges

'

'

'

'

'

'

'

'

16

6

30

Gain on disposition

'

'

'

'

'

'

'

'

-19

'

-129

Total costs and expenses

'

'

'

'

'

'

'

'

3,537

2,632

2,365

Operating (loss) income

'

'

'

'

'

'

'

'

1,998

1,855

1,803

Equity in earnings of subsidiaries

'

'

'

'

'

'

'

'

0

0

0

Interest expense

'

'

'

'

'

'

'

'

-306

-248

-208

Income (loss) from equity investees, net

'

'

'

'

'

'

'

'

18

-86

-35

Other income (expense), net

'

'

'

'

'

'

'

'

26

-3

3

Income from continuing operations before income taxes

'

'

'

'

'

'

'

'

1,736

1,518

1,563

Benefit from (provision for) income taxes

'

'

'

'

'

'

'

'

-659

-562

-427

Income from continuing operations, net of taxes

'

'

'

'

'

'

'

'

'

956

1,136

Loss from discontinued operations, net of taxes

'

'

'

'

'

'

'

'

'

-11

-3

Net income

'

'

'

'

'

'

'

'

1,077

945

1,133

Net income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

-1

-2

-1

Net income attributable to redeemable noncontrolling interest

'

'

'

'

'

'

'

'

-1

'

'

Net income attributable to Discovery Communications, Inc.

'

'

'

'

'

'

'

'

$1,075

$943

$1,132

[1]

(b)On April 9, 2013, the Company acquired SBS Nordic. During the year ended DecemberB 31, 2012, the Company acquired Switchover Media and a television station in Dubai. The Company included the operations of each of these acquisitions in the Company's consolidated financial statements as of each of their respective acquisition dates. (See Note 3.)

[2]

(c)On September 17, 2012, the Company sold its postproduction audio business, CSS Studios, LLC, whose results of operations have been reclassified to discontinued operations for all quarterly periods presented. (See Note 3.)

Condensed_Consolidating_Financ5

Condensed Consolidating Financial Information (Condensed Consolidating Statement of Other Comprehensive Income) (Details) (USD $)

3 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Condensed Financial Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net income

$290

[1]

$256

[1]

$300

[1]

$231

[1]

$224

[1],[2]

$206

[2]

$293

[2]

$222

[2]

$1,077

$945

$1,133

Currency translation adjustments

'

'

'

'

'

'

'

'

-11

28

10

Derivative and market value adjustments

'

'

'

'

'

'

'

'

8

-1

0

Comprehensive income

'

'

'

'

'

'

'

'

1,074

972

1,143

Comprehensive income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

-1

-2

-1

Comprehensive loss attributable to redeemable noncontrolling interests

'

'

'

'

'

'

'

'

2

0

0

Comprehensive income attributable to Discovery Communications Inc.

'

'

'

'

'

'

'

'

1,075

970

1,142

Discovery [Member]

'

'

'

'

'

'

'

'

'

'

'

Condensed Financial Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net income

'

'

'

'

'

'

'

'

1,075

943

1,132

Currency translation adjustments

'

'

'

'

'

'

'

'

-11

28

10

Derivative and market value adjustments

'

'

'

'

'

'

'

'

8

-1

'

Comprehensive income

'

'

'

'

'

'

'

'

1,072

970

1,142

Comprehensive income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

0

0

0

Comprehensive loss attributable to redeemable noncontrolling interests

'

'

'

'

'

'

'

'

3

'

'

Comprehensive income attributable to Discovery Communications Inc.

'

'

'

'

'

'

'

'

1,075

970

1,142

Discovery Communications Holding, LLC [Member]

'

'

'

'

'

'

'

'

'

'

'

Condensed Financial Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net income

'

'

'

'

'

'

'

'

1,084

967

1,141

Currency translation adjustments

'

'

'

'

'

'

'

'

-11

28

10

Derivative and market value adjustments

'

'

'

'

'

'

'

'

8

-1

'

Comprehensive income

'

'

'

'

'

'

'

'

1,081

994

1,151

Comprehensive income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

0

0

0

Comprehensive loss attributable to redeemable noncontrolling interests

'

'

'

'

'

'

'

'

3

'

'

Comprehensive income attributable to Discovery Communications Inc.

'

'

'

'

'

'

'

'

1,084

994

1,151

Discovery Communications, LLC [Member]

'

'

'

'

'

'

'

'

'

'

'

Condensed Financial Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net income

'

'

'

'

'

'

'

'

1,084

965

1,141

Currency translation adjustments

'

'

'

'

'

'

'

'

-11

28

10

Derivative and market value adjustments

'

'

'

'

'

'

'

'

8

-1

'

Comprehensive income

'

'

'

'

'

'

'

'

1,081

992

1,151

Comprehensive income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

0

0

0

Comprehensive loss attributable to redeemable noncontrolling interests

'

'

'

'

'

'

'

'

3

'

'

Comprehensive income attributable to Discovery Communications Inc.

'

'

'

'

'

'

'

'

1,084

992

1,151

Non-Guarantor Subsidiaries Of Discovery Communications, LLC [Member]

'

'

'

'

'

'

'

'

'

'

'

Condensed Financial Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net income

'

'

'

'

'

'

'

'

622

446

626

Currency translation adjustments

'

'

'

'

'

'

'

'

-10

26

10

Derivative and market value adjustments

'

'

'

'

'

'

'

'

11

-1

'

Comprehensive income

'

'

'

'

'

'

'

'

623

471

636

Comprehensive income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

0

0

0

Comprehensive loss attributable to redeemable noncontrolling interests

'

'

'

'

'

'

'

'

3

'

'

Comprehensive income attributable to Discovery Communications Inc.

'

'

'

'

'

'

'

'

626

471

636

Other Non - Guarantor Subsidiaries Of Discovery Communications, Inc. [Member]

'

'

'

'

'

'

'

'

'

'

'

Condensed Financial Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net income

'

'

'

'

'

'

'

'

723

617

759

Currency translation adjustments

'

'

'

'

'

'

'

'

-7

19

7

Derivative and market value adjustments

'

'

'

'

'

'

'

'

5

-1

'

Comprehensive income

'

'

'

'

'

'

'

'

721

635

766

Comprehensive income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

0

0

0

Comprehensive loss attributable to redeemable noncontrolling interests

'

'

'

'

'

'

'

'

2

'

'

Comprehensive income attributable to Discovery Communications Inc.

'

'

'

'

'

'

'

'

723

635

766

Reclassifications And Eliminations [Member]

'

'

'

'

'

'

'

'

'

'

'

Condensed Financial Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net income

'

'

'

'

'

'

'

'

-3,511

-2,993

-3,666

Currency translation adjustments

'

'

'

'

'

'

'

'

39

-101

-37

Derivative and market value adjustments

'

'

'

'

'

'

'

'

-32

4

'

Comprehensive income

'

'

'

'

'

'

'

'

-3,504

-3,090

-3,703

Comprehensive income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

-1

-2

-1

Comprehensive loss attributable to redeemable noncontrolling interests

'

'

'

'

'

'

'

'

-12

'

'

Comprehensive income attributable to Discovery Communications Inc.

'

'

'

'

'

'

'

'

-3,517

-3,092

-3,704

Discovery Communications, Inc. And Subsidiaries [Member]

'

'

'

'

'

'

'

'

'

'

'

Condensed Financial Statements, Captions [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net income

'

'

'

'

'

'

'

'

1,077

945

1,133

Currency translation adjustments

'

'

'

'

'

'

'

'

-11

28

10

Derivative and market value adjustments

'

'

'

'

'

'

'

'

8

-1

'

Comprehensive income

'

'

'

'

'

'

'

'

1,074

972

1,143

Comprehensive income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

-1

-2

-1

Comprehensive loss attributable to redeemable noncontrolling interests

'

'

'

'

'

'

'

'

2

'

'

Comprehensive income attributable to Discovery Communications Inc.

'

'

'

'

'

'

'

'

$1,075

$970

$1,142

[1]

(b)On April 9, 2013, the Company acquired SBS Nordic. During the year ended DecemberB 31, 2012, the Company acquired Switchover Media and a television station in Dubai. The Company included the operations of each of these acquisitions in the Company's consolidated financial statements as of each of their respective acquisition dates. (See Note 3.)

[2]

(c)On September 17, 2012, the Company sold its postproduction audio business, CSS Studios, LLC, whose results of operations have been reclassified to discontinued operations for all quarterly periods presented. (See Note 3.)

Condensed_Consolidating_Financ6

Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Cash Flows) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash provided by operating activities	$1,285	$1,099	$1,100
Purchases of property and equipment	-115	-77	-58
Business acquisitions, net of cash acquired	-1,861	-149	-26
Hedging instruments, net	-55	0	0
Proceeds from disposition	28	0	0
Distributions from equity method investees	47	17	21
Investments and advances to equity method investees, net	-28	-404	-151
Other investing activities, net	-3	-30	0
Cash used in investing activities	-1,987	-643	-214
Borrowings from long term debt, net of discount and issuance costs	1,186	981	639
Principal repayments of capital lease obligations	-32	-22	-20
Repurchases of Common Stock	-1,049	-1,380	-997
Repurchases of preferred stock	-256	0	0
Proceeds from equity-based plans, net	73	119	88
Cash provided by (used in) financing activities	-85	-305	-297
Effect of exchange rate changes on cash and cash equivalents	-6	2	-7
Net change in cash and cash equivalents	-793	153	582
Cash and cash equivalents, beginning of period	1,201	1,048	466
Cash and cash equivalents, end of period	408	1,201	1,048
Discovery [Member]	'	'	'
Cash provided by operating activities	-16	-18	68
Purchases of property and equipment	0	0	0
Business acquisitions, net of cash acquired	0	0	0
Hedging instruments, net	0	'	'
Proceeds from disposition	0	'	'
Distributions from equity method investees	0	0	0
Investments and advances to equity method investees, net	0	0	0
Other investing activities, net	0	0	'
Cash used in investing activities	0	0	0
Borrowings from long term debt, net of discount and issuance costs	0	0	0
Principal repayments of capital lease obligations	0	0	0
Repurchases of Common Stock	-1,049	-1,380	-997
Repurchases of preferred stock	-256	'	'
Proceeds from equity-based plans, net	73	119	88
Inter-company contributions and other financing activities, net	1,248	1,279	841
Cash provided by (used in) financing activities	16	18	-68
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net change in cash and cash equivalents	0	0	0
Cash and cash equivalents, beginning of period	0	0	0
Cash and cash equivalents, end of period	0	0	0
Discovery Communications Holding, LLC [Member]	'	'	'
Cash provided by operating activities	-11	12	-1
Purchases of property and equipment	0	0	0
Business acquisitions, net of cash acquired	0	0	0
Hedging instruments, net	0	'	'
Proceeds from disposition	0	'	'
Distributions from equity method investees	0	0	0
Investments and advances to equity method investees, net	0	0	0
Other investing activities, net	0	0	'
Cash used in investing activities	0	0	0
Borrowings from long term debt, net of discount and issuance costs	0	0	0
Principal repayments of capital lease obligations	0	0	0
Repurchases of Common Stock	0	0	0
Repurchases of preferred stock	0	'	'
Proceeds from equity-based plans, net	0	0	0
Inter-company contributions and other financing activities, net	11	-12	1
Cash provided by (used in) financing activities	11	-12	1
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net change in cash and cash equivalents	0	0	0
Cash and cash equivalents, beginning of period	0	0	0
Cash and cash equivalents, end of period	0	0	0
Discovery Communications, LLC [Member]	'	'	'
Cash provided by operating activities	288	307	421
Purchases of property and equipment	-19	-18	-2
Business acquisitions, net of cash acquired	0	0	0
Hedging instruments, net	-55	'	'
Proceeds from disposition	0	'	'
Distributions from equity method investees	0	0	0
Investments and advances to equity method investees, net	-1	0	0
Other investing activities, net	0	-31	'
Cash used in investing activities	-75	-49	-2
Borrowings from long term debt, net of discount and issuance costs	1,186	981	639
Principal repayments of capital lease obligations	-7	-6	-6
Repurchases of Common Stock	0	0	0
Repurchases of preferred stock	0	'	'
Proceeds from equity-based plans, net	0	0	0
Inter-company contributions and other financing activities, net	-2,291	-1,175	-457
Cash provided by (used in) financing activities	-1,112	-200	176
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net change in cash and cash equivalents	-899	58	595
Cash and cash equivalents, beginning of period	1,022	964	369
Cash and cash equivalents, end of period	123	1,022	964
Non-Guarantor Subsidiaries Of Discovery Communications, LLC [Member]	'	'	'
Cash provided by operating activities	1,024	798	613
Purchases of property and equipment	-96	-58	-55
Business acquisitions, net of cash acquired	-1,861	-149	-26
Hedging instruments, net	0	'	'
Proceeds from disposition	28	'	'
Distributions from equity method investees	47	17	21
Investments and advances to equity method investees, net	-27	-404	-151
Other investing activities, net	-3	0	'
Cash used in investing activities	-1,912	-594	-211
Borrowings from long term debt, net of discount and issuance costs	0	0	0
Principal repayments of capital lease obligations	-25	-16	-14
Repurchases of Common Stock	0	0	0
Repurchases of preferred stock	0	'	'
Proceeds from equity-based plans, net	0	0	0
Inter-company contributions and other financing activities, net	1,025	-94	-391
Cash provided by (used in) financing activities	1,000	-110	-405
Effect of exchange rate changes on cash and cash equivalents	-6	2	-7
Net change in cash and cash equivalents	106	96	-10
Cash and cash equivalents, beginning of period	179	83	93
Cash and cash equivalents, end of period	285	179	83
Other Non - Guarantor Subsidiaries Of Discovery Communications, Inc. [Member]	'	'	'
Cash provided by operating activities	0	0	-1
Purchases of property and equipment	0	-1	-1
Business acquisitions, net of cash acquired	0	0	0
Hedging instruments, net	0	'	'
Proceeds from disposition	0	'	'
Distributions from equity method investees	0	0	0
Investments and advances to equity method investees, net	0	0	0
Other investing activities, net	0	1	'
Cash used in investing activities	0	0	-1
Borrowings from long term debt, net of discount and issuance costs	0	0	0
Principal repayments of capital lease obligations	0	0	0
Repurchases of Common Stock	0	0	0
Repurchases of preferred stock	0	'	'
Proceeds from equity-based plans, net	0	0	0
Inter-company contributions and other financing activities, net	0	-1	-1
Cash provided by (used in) financing activities	0	-1	-1
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net change in cash and cash equivalents	0	-1	-3
Cash and cash equivalents, beginning of period	0	1	4
Cash and cash equivalents, end of period	0	0	1
Reclassifications And Eliminations [Member]	'	'	'
Cash provided by operating activities	0	0	0
Purchases of property and equipment	0	0	0
Business acquisitions, net of cash acquired	0	0	0
Hedging instruments, net	0	'	'
Proceeds from disposition	0	'	'
Distributions from equity method investees	0	0	0
Investments and advances to equity method investees, net	0	0	0
Other investing activities, net	0	0	'
Cash used in investing activities	0	0	0
Borrowings from long term debt, net of discount and issuance costs	0	0	0
Principal repayments of capital lease obligations	0	0	0
Repurchases of Common Stock	0	0	0
Repurchases of preferred stock	0	'	'
Proceeds from equity-based plans, net	0	0	0
Inter-company contributions and other financing activities, net	0	0	0
Cash provided by (used in) financing activities	0	0	0
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net change in cash and cash equivalents	0	0	0
Cash and cash equivalents, beginning of period	0	0	0
Cash and cash equivalents, end of period	0	0	0
Discovery Communications, Inc. And Subsidiaries [Member]	'	'	'
Cash provided by operating activities	1,285	1,099	1,100
Purchases of property and equipment	-115	-77	-58
Business acquisitions, net of cash acquired	-1,861	-149	-26
Hedging instruments, net	-55	'	'
Proceeds from disposition	28	'	'
Distributions from equity method investees	47	17	21
Investments and advances to equity method investees, net	-28	-404	-151
Other investing activities, net	-3	-30	'
Cash used in investing activities	-1,987	-643	-214
Borrowings from long term debt, net of discount and issuance costs	1,186	981	639
Principal repayments of capital lease obligations	-32	-22	-20
Repurchases of Common Stock	-1,049	-1,380	-997
Repurchases of preferred stock	-256	'	'
Proceeds from equity-based plans, net	73	119	88
Inter-company contributions and other financing activities, net	-7	-3	-7
Cash provided by (used in) financing activities	-85	-305	-297
Effect of exchange rate changes on cash and cash equivalents	-6	2	-7
Net change in cash and cash equivalents	-793	153	582
Cash and cash equivalents, beginning of period	1,201	1,048	466
Cash and cash equivalents, end of period	$408	$1,201	$1,048