|
Related Party Transactions - Consolidated Statement of Income (Details) (USD $)
|
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2014
|
Sep. 30, 2013
|
Sep. 30, 2014
|
Sep. 30, 2013
|
|
| Revenue | $ 16,791,000,000 | $ 16,151,000,000 | $ 51,043,000,000 | $ 47,731,000,000 |
|
NBCUniversal Media, LLC [Member]
|
||||
| Revenue | 5,921,000,000 | 5,851,000,000 | 18,813,000,000 | 17,186,000,000 |
|
Transactions With Comcast And Consolidated Subsidiaries [Member] | NBCUniversal Media, LLC [Member]
|
||||
| Revenue | 316,000,000 | 299,000,000 | 989,000,000 | 953,000,000 |
| Operating costs and expenses | (32,000,000) | (29,000,000) | (96,000,000) | (126,000,000) |
| Other income (expense) | $ (10,000,000) | $ (32,000,000) | ||