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Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2022
Dec. 31, 2021
Statement of Financial Position [Abstract]    
Common shares, par value (in usd per share) $ 0.01 $ 0.01
Common shares, authorized (in shares) 400,000,000.0 400,000,000.0
Common shares, issued (in shares) 122,200,000 122,200,000
Treasury stock, shares (in shares) 31,300,000 30,600,000