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]

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No definition available.

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- Definition

Contractual value of a potential future obligation based on a contractual formula on a specified date.

+ References

No definition available.

+ Details

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- Definition

Number of employees covered by collective bargaining agreements.

+ References

No definition available.

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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.

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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.

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- Definition

Represents the related party liquidation preference of preferred stock not subject to guarantee by NBCUniversal.

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

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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://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 275
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- Definition

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

+ References

No definition available.

+ Details

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Commitments and Contingencies (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) employee	Dec. 31, 2017 USD ($)
Commitment And Contingencies [Line Items]
Carrying value of contractual obligation	$ 1,100
Contractual value of a potential obligation	1,600
Redeemable Subsidiary Preferred Stock [Member] \| Level 2 [Member]
Commitment And Contingencies [Line Items]
Temporary equity, fair value of redeemable subsidiary preferred stock	741	$ 748
NBCUniversal Enterprise [Member]
Commitment And Contingencies [Line Items]
Related party liquidation preference preferred stock not subject to guarantee	$ 725
NBCUniversal Enterprise [Member] \| Redeemable Subsidiary Preferred Stock [Member]
Commitment And Contingencies [Line Items]
Redeemable subsidiary preferred stock, put period	30 days
Redeemable subsidiary preferred stock, dividend rate	5.25%
Redeemable subsidiary preferred stock, call period	1 year
NBCUniversal Media LLC [Member]
Commitment And Contingencies [Line Items]
Carrying value of contractual obligation	$ 1,100
Contractual value of a potential obligation	1,600
NBCUniversal Media LLC [Member] \| NBCUniversal Enterprise [Member]
Commitment And Contingencies [Line Items]
Related party liquidation preference preferred stock not subject to guarantee	$ 725
Workforce Subject to Collective Bargaining Arrangements [Member]
Commitment And Contingencies [Line Items]
Number of employees covered under collective bargaining agreements \| employee	10,000
Workforce Subject to Collective Bargaining Arrangements [Member] \| NBCUniversal Media LLC [Member]
Commitment And Contingencies [Line Items]
Number of employees covered under collective bargaining agreements \| employee	10,000
Workforce Subject to Collective Bargaining Arrangements Expiring within One Year [Member]
Commitment And Contingencies [Line Items]
Percentage of full-time equivalent employees covered by collective bargaining agreements that have expired or are schedule to expire during the next year	46.00%
Workforce Subject to Collective Bargaining Arrangements Expiring within One Year [Member] \| NBCUniversal Media LLC [Member]
Commitment And Contingencies [Line Items]
Percentage of full-time equivalent employees covered by collective bargaining agreements that have expired or are schedule to expire during the next year	46.00%