Programming and Other Inventory (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Inventory Disclosure [Abstract]
Acquired program rights	$ 2,234	$ 1,773
Acquired television library	99	0
Internally produced programming, released	1,780	1,746
Internally produced programming, in process and other	543	298
Publishing, primarily finished goods	53	49
Total programming and other inventory	4,709	3,866
Less current portion	1,828	1,427
Net property and equipment	2,881	$ 2,439
Internally produced programming to be amortized in next fiscal year	$ 725
Amortization period	3 years

Carrying amount as of the balance sheet date of acquired program rights.

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Carrying amount as of the balance sheet date of acquired television library.

+ References

No definition available.

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- Definition

Estimated period over which remaining released internally produced programming is expected to be substantially amortized

+ References

No definition available.

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Total current and noncurrent inventory.

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The amount of direct negative costs incurred in the production of a direct-to-television film, as well as allocations of production overhead and capitalized interest. Examples of direct negative costs include costs of story and scenario; compensation of cast, directors, producers, extras, and miscellaneous staff; costs of set construction and operations, wardrobe, and accessories; costs of sound synchronization; rental facilities on location; and postproduction costs such as music, special effects, and editing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6473108&loc=d3e54431-107959

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The amount of direct negative costs incurred in the release of a direct-to-television film, as well as allocations of production overhead and capitalized interest. Examples of direct negative costs include costs of story and scenario; compensation of cast, directors, producers, extras, and miscellaneous staff; costs of set construction and operations, wardrobe, and accessories; costs of sound synchronization; rental facilities on location; and postproduction costs such as music, special effects, and editing.

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The amount of film costs related to completed films that are expected to be amortized during the upcoming operating cycle.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle.

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Amount, after of valuation reserves and allowances, of inventory, classified as other, expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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