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Stock-based Compensation (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Restricted Stock Units (RSUs)        
Share-based Payment activity [Roll Forward]        
Unvested at beginning of period (in shares) 841,300 912,400 912,400  
Granted (in shares) 0 0    
Vested (in shares) (145,600) (122,800)    
Forfeited (in shares) (7,300) (2,800)    
Unvested at end of period (in shares) 688,400 786,800 841,300 912,400
Performance Shares [Member]        
Share-based Payment activity [Roll Forward]        
Unvested at beginning of period (in shares) 567,000.0 646,000.0 646,000.0  
Granted (in shares) 31,000.0 0    
Vested (in shares) (257,200) (175,100)    
Forfeited (in shares) (24,400) (4,800)    
Unvested at end of period (in shares) 316,400 466,100 567,000.0 646,000.0
Share-based Payment Arrangement [Member]        
Share-based Payment activity [Roll Forward]        
Unvested at beginning of period (in shares) 1,408,300 1,558,400 1,558,400  
Granted (in shares) 31,000.0 0    
Vested (in shares) (402,800) (297,900)    
Forfeited (in shares) (31,700) (7,600)    
Unvested at end of period (in shares) 1,004,800 1,252,900 1,408,300 1,558,400
Share-based Payment activity, additional disclosures [Abstract]        
Weighted average grant date fair value, beginning of period (in dollars per share) $ 170.78 $ 152.27 $ 152.27  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value 111.33 0    
Weighted average grant date fair value, vested (in dollars per share) 115.92 150.29    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value 125.84 174.32    
Weighted average grant date fair value, end of period (in dollars per share) $ 192.36 $ 152.62 $ 170.78 $ 152.27
Weighted average remaining contractual life, unvested shares outstanding 1 year 7 months 28 days 1 year 10 months 2 days 1 year 9 months 14 days 1 year 11 months 26 days
Unamortized deferred compensation cost $ 77.9