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Summary of Option Activity (Details)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended
Mar. 31, 2022
USD ($)
$ / shares
shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Beginning Balance, Options | shares 11.3
Exercised, Options | shares (0.3)
Cancelled, Options | shares (0.2)
Ending Balance, Options | shares 10.8
Exercisable at March 31, 2022 | shares 6.3
Beginning Balance, Weighted-Average Exercise Price | $ / shares $ 58.83
Exercised, Weighted-Average Exercise Price | $ / shares 39.17
Cancelled, Weighted-Average Exercise Price | $ / shares 78.28
Ending Balance, Weighted-Average Exercise Price | $ / shares 59.08
Exercisable at March 31, 2022 Weighted-Average Exercise Price | $ / shares $ 45.03
Outstanding at March 31, 2022, Weighted-Average Remaining Contractual Term, years 5 years 10 months 24 days
Exercisable at March 31, 2022, Weighted-Average Remaining Contractual Term, years 4 years 1 month 6 days
Outstanding at March 31, 2022, Aggregate Intrinsic Value | $ $ 438.4
Exercisable at March 31, 2022, Aggregate Intrinsic Value | $ $ 343.7