|
Business and Basis of Presentation (Details)
|
Mar. 19, 2013
|
Mar. 19, 2013
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2013
Video Customers [Member]
numberofcustomers
|
Dec. 31, 2013
High-speed Internet Customers [Member]
numberofcustomers
|
Dec. 31, 2013
Phone Customers [Member]
numberofcustomers
|
|---|---|---|---|---|---|
| Number of customers | 21,700,000 | 20,700,000 | 10,700,000 | ||
| Remaining equity interest acquired | 49.00% | 49.00% |