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Share-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]  
Schedule of share-based compensation expenses
Total share-based compensation expenses were as follows (in millions):
For the Years Ended December 31,
202220212020
Option awards$11.4$9.8$13.8
Other share-based awards 39.240.940.9
Total share-based compensation before tax 50.650.754.7
Tax benefit 12.012.113.1
Total share-based compensation expense included in net income $38.6$38.6$41.6
Schedule of stock option activity The following summarizes stock option activity and the weighted average exercise price for the Omnibus Plan for the year ended December 31, 2022:
Omnibus Plan
(Active)
Options OutstandingWeighted
Average
Exercise
Price
Balance as of December 31, 20213,279,701 $104.29
Granted
346,535 113.11
Exercised
(351,332)87.36
Forfeited/Expired
(151,161)125.59
Balance as of December 31, 20223,123,743 $106.16
Options exercisable as of December 31, 2022
2,504,752 $104.91
Schedule of weighted average fair value
The following assumptions were used to estimate the weighted average fair value of options granted of $37.41, $36.77 and $21.76 during the years ended December 31, 2022, 2021 and 2020, respectively:
For the Years Ended December 31,
202220212020
Weighted-average volatility
43%43%34%
Expected dividend yield
2.2%2.1%2.6%
Expected term (in years)
4.94.74.5
Weighted average risk free interest rate
1.7%0.5%1.4%
Schedule of restricted stock activity
The following table summarizes restricted stock activity for the year ended December 31, 2022:
Shares
Outstanding		Weighted
Average
Grant Price
Balance as of December 31, 20211,063,753 $101.72
Granted
347,083 119.42
Vested
(443,170)91.05
Forfeited/Cancelled
(101,648)109.24
Balance as of December 31, 2022866,018 $113.40
Expected to vest as of December 31, 2022
904,410 $112.52