XML 74 R63.htm IDEA: XBRL DOCUMENT v3.21.2
Stock Option Plans - Stock Option Activity and Related Information (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 6 Months Ended
Jun. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Shares Under Option, Beginning balance 7.5
Shares Under Option, Granted 1.6
Shares Under Option, Exercised (0.9)
Shares Under Option, Forfeited or canceled (0.1)
Shares Under Option, Ending balance 8.1
Shares Under Option, Exercisable at end of year 2.5
Shares Under Option, Ending unvested and expected to vest 5.1
Weighted Average Exercise Price, Beginning balance $ 65.09
Weighted Average Exercise Price, Granted 127.90
Weighted Average Exercise Price, Exercised 49.43
Weighted Average Exercise Price, Forfeited or canceled 84.41
Weighted Average Exercise Price, Ending balance 79.59
Weighted Average Exercise Price, Exercisable at end of year 50.83
Weighted Average Exercise Price, Ending unvested and expected to vest $ 91.44
Weighted Average Remaining Contractual Term (in years), Ending balance 4 years 3 months 3 days
Weighted Average Remaining Contractual Term (in years), Exercisable at end of year 2 years
Weighted Average Remaining Contractual Term (in years), Ending unvested and expected to vest 5 years 2 months 15 days
Aggregate Intrinsic Value, Ending Balance $ 488.4
Aggregate Intrinsic Value, Exercisable at end of year 222.2
Aggregate Intrinsic Value, Ending unvested and expected to vest $ 250.3