v3.3.1.900
Consolidated Balance Sheet (Parenthetical) - $ / shares
Dec. 31, 2015
Dec. 31, 2014
Preferred stock, authorized 20,000,000 20,000,000
Preferred stock, issued 0 0
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 2,869,349,502 2,496,598,612
Common stock, outstanding 2,432,953,988 2,131,137,862
Treasury stock common shares 436,395,514 365,460,750
Class A Special Common Stock [Member]    
Common stock, par value   $ 0.01
Common stock, authorized   7,500,000,000
Common stock, issued   471,419,601
Common stock, outstanding   400,484,837
Treasury stock common shares   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