XML 92 R76.htm IDEA: XBRL DOCUMENT v3.22.0.1
Share-Based Compensation - Schedule Of Estimated Fair Value Of Option Using Black-Scholes Option Pricing Model, Weighted Average Assumptions (Details) - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
STOCK OPTION PLANS      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Risk-free interest rate 0.80% 0.60% 2.00%
Expected term (years) 4 years 1 month 6 days 4 years 1 month 6 days 4 years 1 month 6 days
Volatility (percent) 32.00% 32.00% 30.00%
Weighted average fair value at grant date (usd per share) $ 78.23 $ 54.34 $ 47.51
EMPLOYEE STOCK PURCHASE PLAN      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Risk-free interest rate 0.10% 0.90% 2.10%
Expected term (years) 1 year 2 months 12 days 1 year 2 months 12 days 1 year 2 months 12 days
Volatility (percent) 29.00% 30.00% 29.00%
Weighted average fair value at grant date (usd per share) $ 89.98 $ 57.29 $ 49.66
RESTRICTED STOCK UNITS      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Fair value at grant date (usd per share) $ 256.52 $ 181.89 $ 180.45