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Schedule II- Condensed Financial Information -Balance Sheet- (Parent Company) (Parenthetical) (Details) - $ / shares
Dec. 31, 2021
Dec. 31, 2020
Condensed Balance Sheet Statements, Captions [Line Items]    
Common stock, shares, outstanding (in shares) 283,778,574 291,448,627
Treasury stock (in shares) 41,707,855 31,174,321
Parent Company    
Condensed Balance Sheet Statements, Captions [Line Items]    
Common stock, par value per share (in dollars per share) $ 0.0001 $ 0.0001
Common stock, shares authorized (in shares) 600,000,000 600,000,000
Common stock, shares, outstanding (in shares) 290,533,141 298,203,194
Common stock, shares, issued (in shares) 325,486,429 322,622,948
Preferred stock, par or stated value per share (in dollars per share) $ 0.0001 $ 0.0001
Preferred stock, shares authorized (in shares) 50,000,000 50,000,000
Preferred stock, shares issued (in shares) 0 0
Preferred stock, shares outstanding (in shares) 0 0
Treasury stock (in shares) 34,953,288 24,419,754