|
Share-Based Compensation (Recognized Share-Based Compensation Expense) (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2014
|
Sep. 30, 2013
|
Sep. 30, 2014
|
Sep. 30, 2013
|
|
| Recognized share-based compensation expense | $ 98 | $ 82 | $ 310 | $ 247 |
|
NBCUniversal Media, LLC [Member]
|
||||
| Recognized share-based compensation expense | 20 | 16 | 70 | 45 |
|
Stock Options [Member]
|
||||
| Recognized share-based compensation expense | 38 | 34 | 121 | 102 |
|
Stock Options [Member] | NBCUniversal Media, LLC [Member]
|
||||
| Recognized share-based compensation expense | 4 | 4 | 13 | 11 |
|
Restricted Share Units [Member]
|
||||
| Recognized share-based compensation expense | 55 | 44 | 171 | 130 |
|
Restricted Share Units [Member] | NBCUniversal Media, LLC [Member]
|
||||
| Recognized share-based compensation expense | 15 | 11 | 52 | 30 |
|
Employee Stock Purchase Plan [Member]
|
||||
| Recognized share-based compensation expense | 5 | 4 | 18 | 15 |
|
Employee Stock Purchase Plan [Member] | NBCUniversal Media, LLC [Member]
|
||||
| Recognized share-based compensation expense | $ 1 | $ 1 | $ 5 | $ 4 |