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Supplemental Financial Information (Noncash Investing and Financing Activities)(Details) (USD $)
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9 Months Ended |
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Sep. 30, 2014
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| Dividends payable, amount | $ 580,000,000 |
| Dividends payable, amount per share | $ 0.225 |
| Capital expenditures incurred but not yet paid | 847,000,000 |
| Fair Value Equity Securities Settlement | 3,200,000,000 |
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NBCUniversal Media, LLC [Member]
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| Capital expenditures incurred but not yet paid | $ 194,000,000 |
| X | ||||||||||
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- Definition
Fair value method equity securities used to settle our obligations under prepaid forward sale agreements in the period. No definition available.
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| X | ||||||||||
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- Definition
Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The per share amount of a dividend declared, but not paid, as of the financial reporting date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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