v2.4.0.8

Related Party Transactions (Narrative) (Details) (USD $) |  |  |  |  | 9 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2014 | Dec. 31, 2013 | Sep. 30, 2014 NBCUniversal Media, LLC [Member] | Dec. 31, 2013 NBCUniversal Media, LLC [Member] | Sep. 30, 2014 Nbcuniversal Holdings Preferred Stock [Member] NBCUniversal Media, LLC [Member] | Sep. 30, 2014 Carrying Value Of Related Party Contractual Obligation [Member] NBCUniversal Media, LLC [Member] | Sep. 30, 2014 Comcast Corporation And NBCUniversal Media LLC Revolving Credit Agreement [Member] NBCUniversal Media, LLC [Member]
Preferred stock liquidition preference value |  |  |  |  | $ 9,400,000,000 |  |
Revolving Credit Agreement Capacity |  |  |  |  |  |  | 3,000,000,000
Preferred stock dividend rate percentage |  |  |  |  | 8.25% |  |
Borrowing margin for LIBOR based borrowings |  |  | 1.00% |  |  |  |
Other noncurrent liabilities | $ 10,388,000,000 | $ 11,384,000,000 | $ 3,514,000,000 | $ 3,412,000,000 |  | $ 383,000,000 |

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