v2.4.0.6
Consolidated Balance Sheet (Parenthetical) (USD $)
In Millions, except Share data, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Preferred stock, authorized 20,000,000 20,000,000
Preferred stock, issued 0 0
Property and equipment, net, accumulated depreciation $ 37,980 $ 36,528
Other intangible assets, net, accumulated amortization $ 7,325 $ 6,665
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 2,480,319,846 2,460,937,253
Common stock, outstanding 2,114,859,096 2,095,476,503
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 622,457,433 671,947,577
Common stock, outstanding 551,522,669 601,012,813
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