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Consolidated Balance Sheets (Parenthetical) - USD ($)
shares in Millions, $ in Millions
Dec. 31, 2021
Dec. 31, 2020
Statement of Financial Position [Abstract]    
Allowance for credit losses $ 26.1 $ 53.8
Preferred stock, par value (in dollars per share) $ 1.00 $ 1.00
Preferred stock, shares authorized (in shares) 0.1 0.1
Preferred stock, shares issued (in shares) 0.0 0.0
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized (in shares) 100.0 100.0
Common stock, shares issued (in shares) 61.7 62.9
Common stock, shares outstanding (in shares) 61.7 62.9