v2.4.0.8
Condensed Consolidated Balance Sheet (Parenthetical) (USD $)
In Millions, except Share data, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Preferred stock, authorized 20,000,000 20,000,000
Preferred stock, issued 0 0
Accumulated depreciation $ 44,186 $ 42,574
Accumulated amortization 9,466 8,874
NBCUniversal Media, LLC [Member]
   
Accumulated depreciation 1,920 1,599
Accumulated amortization $ 4,351 $ 4,003
Class A Common Stock [Member]
   
Common stock, par value $ 0.01 $ 0.01
Common stock, authorized 7,500,000,000 7,500,000,000
Common stock, issued 2,515,037,192 2,503,535,883
Common stock, outstanding 2,149,576,442 2,138,075,133
Treasury stock common shares 365,460,750 365,460,750
ClassA Special Common Stock [Member]
   
Common stock, par value $ 0.01 $ 0.01
Common stock, authorized 7,500,000,000 7,500,000,000
Common stock, issued 500,016,982 529,964,944
Common stock, outstanding 429,082,218 459,030,180
Treasury stock common shares 70,934,764 70,934,764
Class B Common Stock [Member]
   
Common stock, par value $ 0.01 $ 0.01
Common stock, authorized 75,000,000 75,000,000
Common stock, issued 9,444,375 9,444,375
Common stock, outstanding 9,444,375 9,444,375