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Share-Based Compensation - Summary of Stock Option Activity and Related Information (Detail)
$ / shares in Units, shares in Thousands, $ in Millions
 12 Months Ended
Dec. 31, 2021
USD ($)
$ / shares
shares
Shares  
Outstanding at the beginning of the year (in shares) | shares 3,950
Granted (in shares) | shares 552
Exercised (in shares) | shares (1,025)
Forfeited (in shares) | shares (123)
Expired (in shares) | shares (2)
Outstanding at the end of the year (in shares) | shares 3,352
Exercisable at the end of the year (in shares) | shares 2,060
Weighted Average Exercise Price  
Weighted average exercise price, Outstanding at the beginning of the year (in USD per share) | $ / shares $ 65.16
Weighted average exercise price, Granted (in USD per share) | $ / shares 121.91
Weighted average exercise price, Exercised (in USD per share) | $ / shares 57.60
Weighted average exercise price, Forfeited (in USD per share) | $ / shares 85.52
Weighted average exercise price, Expired (in USD per share) | $ / shares 59.79
Weighted average exercise price, Outstanding at the end of the year (in USD per share) | $ / shares 76.08
Weighted average exercise price, Exercisable at the end of the year (in USD per share) | $ / shares $ 67.15
Weighted Average Remaining Contractual Life   
Weighted average remaining contractual life, Outstanding at the end of the year (in years) 6 years 2 months 12 days
Weighted average remaining contractual life, Exercisable at the end of the year (in years) 4 years 8 months 12 days
Aggregate Intrinsic Value  
Aggregate intrinsic value, Outstanding at the end of the year | $ $ 237.9
Aggregate intrinsic value, Exercisable at the end of the year | $ $ 164.6