v2.4.0.8

Investments (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Fair value method	$ 2,387	$ 4,345
Equity method	1,004	989
Cost method	2,006	2,009
Total Investments	5,397	7,343
Less: Current investments	2,325	3,573
Noncurrent investments	3,072	3,770
NBCUniversal Media, LLC [Member]
Fair value method	19	11
Equity method	851	852
Cost method	19	21
Total Investments	889	884
Less: Current investments	8
Noncurrent investments	881	884
Other Equity Method Investments [Member]
Equity method	486	469
Other Equity Method Investments [Member] | NBCUniversal Media, LLC [Member]
Equity method	333	332
Air Touch [Member]
Cost method	1,560	1,553
Other Cost Method Investment [Member]
Cost method	446	456
The Weather Channel [Member]
Equity method	331	333
The Weather Channel [Member] | NBCUniversal Media, LLC [Member]
Equity method	331	333
Hulu [Member]
Equity method	187	187
Hulu [Member] | NBCUniversal Media, LLC [Member]
Equity method	$ 187	$ 187

X

- Definition

Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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- Definition

Sum of the carrying amounts as of the balance sheet date of all investments.

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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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- Definition

Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale.

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Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy.

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