Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED BALANCE SHEETS (Parenthetical)

v3.19.2
CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares
shares in Millions
Jun. 30, 2019
Dec. 31, 2018
Treasury stock, shares 0 1
Class A common stock    
Common stock, shares issued 161  
Class B common stock    
Common stock, shares issued 698