|
Pension Plans and Postretirement Benefits (Deferred Compensation Plans) (Details) (USD $)
In Millions, unless otherwise specified |
11 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
|
Dec. 31, 2011
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2013
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2012
NBCUniversal Media, LLC [Member]
|
Dec. 31, 2013
Deferred Compensation Plans [Member]
|
Dec. 31, 2012
Deferred Compensation Plans [Member]
|
Dec. 31, 2011
Deferred Compensation Plans [Member]
|
|
| Benefit obligation | $ 114 | $ 250 | $ 163 | $ 1,434 | $ 1,247 | $ 1,059 |
| Interest expense | $ 10 | $ 18 | $ 11 | $ 128 | $ 107 | $ 99 |