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CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares
shares in Millions
Mar. 31, 2022
Dec. 31, 2021
Treasury stock (in shares) 0.3 0.3
Class A common stock    
Common stock, shares issued (in shares) 140.0 138.0
Class B common stock    
Common stock, shares issued (in shares) 734.0 732.0