Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED BALANCE SHEETS (Parenthetical)

v3.5.0.2
CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares
shares in Millions
Sep. 30, 2016
Dec. 31, 2015
Sep. 30, 2015
Dec. 31, 2014
Treasury stock, shares 1 1    
Class A common stock        
Common stock, shares issued 185 194 196 201
Class B common stock        
Common stock, shares issued 689 693 696 705