Carrying value of future obligation classified as a liability which is no longer recorded at fair value.

No definition available.

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- Definition

[Line Items] for Commitment And Contingencies [Table]

+ References

No definition available.

+ Details

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- Definition

Contractual value of a potential future obligation if option had been exercisable based on a contractual formula on a specified date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Gain related to the settlement of a contingent consideration obligation recorded in other income (expense), net.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Number of employees covered by collective bargaining agreements.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- Definition

Amount paid for the settlement of a contingent consideration obligation.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Shares of preferred stock can be called for redemption by NBCUniversal Enterprise at a price equal to the liquidation preference plus accrued but unpaid dividends one year following the put date applicable to such shares.

+ References

No definition available.

+ Details

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- Definition

The holders have the right to cause NBCUniversal Enterprise to redeem their shares at a price equal to the liquidation preference plus accrued but unpaid dividends for a 30 day period beginning on March 19, 2020 and thereafter on every third anniversary of such date (each such date, a “put date”).

+ References

No definition available.

+ Details

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- Definition

Temporary Equity, Fair Value of our redeemable subsidiary preferred stock.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage rate used to calculate dividend payments on preferred stock.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
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- Details

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- Details

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- Details

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Commitments and Contingencies (Narrative) (Details) $ in Millions	1 Months Ended	12 Months Ended
	Jun. 30, 2015 USD ($)	Dec. 31, 2016 USD ($) employee	Dec. 31, 2015 USD ($)
Commitment And Contingencies [Line Items]
Carrying value of contractual obligation		$ 1,100
Contractual value of a potential obligation if option had been exercisable		$ 1,400
Payment for contingent consideration	$ 450
Gain on settlement of contingent consideration	$ 240
Workforce Subject to Collective Bargaining Arrangements [Member]
Commitment And Contingencies [Line Items]
Number of employees covered under collective bargaining agreements \| employee		8,500
Workforce Subject to Collective Bargaining Arrangements Expiring within One Year [Member]
Commitment And Contingencies [Line Items]
Percentage Of Employees Covered Under Collective Bargaining Agreements Expired Or Scheduled To Expire During The Next Year		15.00%
NBCUniversal Media LLC [Member]
Commitment And Contingencies [Line Items]
Carrying value of contractual obligation		$ 1,100
Contractual value of a potential obligation if option had been exercisable		$ 1,400
NBCUniversal Media LLC [Member] \| Workforce Subject to Collective Bargaining Arrangements [Member]
Commitment And Contingencies [Line Items]
Number of employees covered under collective bargaining agreements \| employee		8,500
NBCUniversal Media LLC [Member] \| Workforce Subject to Collective Bargaining Arrangements Expiring within One Year [Member]
Commitment And Contingencies [Line Items]
Percentage Of Employees Covered Under Collective Bargaining Agreements Expired Or Scheduled To Expire During The Next Year		15.00%
Redeemable Subsidiary Preferred Stock [Member] \| NBCUniversal Enterprise [Member]
Commitment And Contingencies [Line Items]
Redeemable subsidiary preferred stock, dividend rate		5.25%
Redeemable subsidiary preferred stock, put period		30 days
Redeemable subsidiary preferred stock, call period		1 year
Level 2 [Member] \| Redeemable Subsidiary Preferred Stock [Member] \| NBCUniversal Enterprise [Member]
Commitment And Contingencies [Line Items]
Temporary equity, fair value of redeemable subsidiary preferred stock		$ 741	$ 758