|
Share-Based Compensation (Recognized Share-Based Compensation Expense) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 11 Months Ended | 12 Months Ended | 11 Months Ended | 12 Months Ended | 11 Months Ended | 12 Months Ended | 11 Months Ended | 12 Months Ended | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2011
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2013
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2012
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2013
Stock Options [Member]
|
Dec. 31, 2012
Stock Options [Member]
|
Dec. 31, 2011
Stock Options [Member]
|
Dec. 31, 2011
Stock Options [Member]
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2013
Stock Options [Member]
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2012
Stock Options [Member]
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2013
Restricted Share Units [Member]
|
Dec. 31, 2012
Restricted Share Units [Member]
|
Dec. 31, 2011
Restricted Share Units [Member]
|
Dec. 31, 2011
Restricted Share Units [Member]
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2013
Restricted Share Units [Member]
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2012
Restricted Share Units [Member]
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2013
Employee Stock Purchase Plan [Member]
|
Dec. 31, 2012
Employee Stock Purchase Plan [Member]
|
Dec. 31, 2011
Employee Stock Purchase Plan [Member]
|
Dec. 31, 2011
Employee Stock Purchase Plan [Member]
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2013
Employee Stock Purchase Plan [Member]
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2012
Employee Stock Purchase Plan [Member]
NBCUniversal Media, LLC [Member]
|
|
| Recognized share-based compensation expense | $ 334 | $ 301 | $ 278 | $ 33 | $ 62 | $ 47 | $ 139 | $ 131 | $ 116 | $ 13 | $ 15 | $ 15 | $ 175 | $ 154 | $ 149 | $ 18 | $ 42 | $ 28 | $ 20 | $ 16 | $ 13 | $ 2 | $ 5 | $ 4 |