Pension Plans and Postretirement Benefits (Deferred Compensation Plans) (Details) (Deferred Compensation Plans [Member], USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
Benefit obligation | $ 1,774 | $ 1,434 | $ 1,247 |
Interest expense | 149 | 128 | 107 |
NBCUniversal Media, LLC [Member]
|
|||
Benefit obligation | 349 | 250 | 163 |
Interest expense | $ 24 | $ 18 | $ 11 |