|
Long-Term Debt (Narrative) (Details) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Long-term Debt, Fair Value | $ 51,800,000,000 | $ 47,700,000,000 | |
| Revolving credit facilities | 1,250,000,000 | ||
| Amounts available under revolving credit facilities | 4,700,000,000 | ||
| Repurchases and repayments of debt | 2,444,000,000 | 2,881,000,000 | 3,216,000,000 |
| Unused irrevocable standby letters of credit | 515,000,000 | ||
|
Commercial paper prior borrowing capacity [Member]
|
|||
| Credit facility borrowing capacity | 2,250,000,000 | ||
|
NBCUniversal Media, LLC [Member]
|
|||
| Long-term Debt, Fair Value | 11,700,000,000 | 12,600,000,000 | |
|
NBCUniversal Enterprise Senior Unsecured Debt Securities
|
|||
| Consideration transferred related to the Redemption Transaction and purchase of certain properties | 4,000,000,000 | ||
|
Comcast Commercial Paper Program
|
|||
| Consideration transferred related to the Redemption Transaction and purchase of certain properties | 750,000,000 | ||
|
NBCUniversal Enterprise Credit Facility
|
|||
| Consideration transferred related to the Redemption Transaction and purchase of certain properties | 1,250,000,000 | ||
| Amounts available under revolving credit facilities | 100,000,000 | ||
|
Comcast And Comcast Cable Communications LLC [Member]
|
|||
| Debt Instrument, Maturity Date, Description | June 2017 | ||
| Credit facility borrowing capacity | 6,250,000,000 | ||
|
Comcast And Comcast Cable Communications LLC [Member] | NBCUniversal Media, LLC [Member]
|
|||
| Debt Instrument, Maturity Date, Description | June 2017 | ||
| Credit facility borrowing capacity | 6,250,000,000 | ||
| Guarantee Obligations Current Principal Balance | 31,000,000,000 | ||
|
NBCUniversal Enterprise [Member] | NBCUniversal Media, LLC [Member]
|
|||
| Principal amount | 4,000,000,000 | ||
| Preferred stock liquidition preference value | 725,000,000 | ||
|
Senior 1.662% Notes Due 2018 [Member] | NBCUniversal Enterprise [Member]
|
|||
| Principal amount | 1,100,000,000 | ||
| Interest rate | 1.662% | ||
| Debt Instrument, Maturity Date, Description | 2018 | ||
|
Senior 1.974% Notes Due 2019 [Member] | NBCUniversal Enterprise [Member]
|
|||
| Principal amount | 1,500,000,000 | ||
| Interest rate | 1.974% | ||
| Debt Instrument, Maturity Date, Description | 2019 | ||
|
Floating Rate Senior Notes Due 2018 [Member] | NBCUniversal Enterprise [Member]
|
|||
| Principal amount | 700,000,000 | ||
| Debt Instrument, Maturity Date, Description | 2018 | ||
| Spread above LIBOR offered rate | 0.685% | ||
|
Floating Rate Senior Notes Due 2016 [Member] | NBCUniversal Enterprise [Member]
|
|||
| Principal amount | 700,000,000 | ||
| Debt Instrument, Maturity Date, Description | 2016 | ||
| Spread above LIBOR offered rate | 0.537% | ||
|
Other Long-Term Debt [Member]
|
|||
| Repurchases and repayments of debt | 109,000,000 | ||
|
Notes 5.50% Due 2029 [Member]
|
|||
| Interest rate | 5.50% | 5.50% | |
| Debt Instrument, Maturity Date, Description | 2029 | 2029 | |
|
Senior 2.850% Notes Due 2023 [Member]
|
|||
| Principal amount | 750,000,000 | ||
| Interest rate | 2.85% | ||
| Debt Instrument, Maturity Date, Description | 2023 | ||
|
Senior 4.250% Notes Due 2033 [Member]
|
|||
| Principal amount | 1,700,000,000 | ||
| Interest rate | 4.25% | ||
| Debt Instrument, Maturity Date, Description | 2033 | ||
|
Senior 4.500% Notes Due 2043 [Member]
|
|||
| Principal amount | 500,000,000 | ||
| Interest rate | 4.50% | ||
| Debt Instrument, Maturity Date, Description | 2043 | ||
|
Current Year Borrowings [Member]
|
|||
| Principal amount | 2,950,000,000 | ||
|
Prior NBCUniversal Credit Facility [Member]
|
|||
| Credit facility borrowing capacity | 1,500,000,000 | ||
|
NBCUniversal Enterprise Credit Facility [Member]
|
|||
| Debt Instrument, Maturity Date, Description | March 2018 | ||
| Credit facility borrowing capacity | 1,350,000,000 | ||
|
NBCUniversal Enterprise Credit Facility [Member] | NBCUniversal Media, LLC [Member]
|
|||
| Credit facility borrowing capacity | 1,350,000,000 | ||
|
Senior 8.375% Notes Due 2013 [Member]
|
|||
| Interest rate | 8.375% | ||
| Debt Instrument, Maturity Date, Description | 2013 | ||
| Repurchases and repayments of debt | 1,714,000,000 | ||
|
Senior 7.125% Notes Due 2013 [Member]
|
|||
| Interest rate | 7.125% | ||
| Debt Instrument, Maturity Date, Description | 2013 | ||
| Repurchases and repayments of debt | 383,000,000 | ||
|
Senior 7.875% Notes Due 2013 [Member]
|
|||
| Interest rate | 7.875% | ||
| Debt Instrument, Maturity Date, Description | 2013 | ||
| Repurchases and repayments of debt | $ 238,000,000 | ||