Stock-Based Compensation Plans (Tables)	12 Months Ended
Dec. 31, 2021
Stock-Based Compensation Plans [Abstract]
Schedule Of Comparative Date For Performance Stock Units	2021 Awards 2020 Awards 2019 Awards TSR Awards Shares of stock granted - target 6,277 5,156 7,029 Per-share fair value$ 599.04 $ 643.44 $ 434.51 Volatility 30.2% 21.4% 21.4%Risk-free interest rate 0.2% 1.3% 2.45% EPS Awards Shares of stock granted - target 6,277 5,156 7,029 Per-share fair value$ 491.34 $ 487.90 $ 322.40 Common Assumptions Service period (years) 2.9 2.9 2.9 Three-year measurement period ends December 31, 2023 2022 2021
Schedule Of Total Stock Option, Stock Award And PSU Activity	Stock Options Stock Awards Performance Units (PSUs) Weighted Weighted Average Aggregate Average Weighted Remaining Intrinsic Grant-Date Number of Average Number of Exercise Contractual Value Number of Per-Share Target Grant-Date Options Price Life (Years) (thousands) Awards Fair Value Units PriceOutstanding at January 1, 2021 1,070,071 $ 341.99 - $ - 38,196 $ 396.93Granted 326,806 445.35 2,430 482.66 24,615 419.79Exercised/Vested (226,268) 228.74 (2,430) 482.66 (26,521) 294.43Canceled/ Forfeited (16,572) 411.46 - - (456) 491.77Outstanding at December 31, 2021 1,154,037 $ 392.46 3.4 $ 160,200 - $ - 35,834 $ 487.29 Vested and expected to vest at December 31, 2021 1,154,037 $ 392.46 3.4 $ 160,200 - $ - 55,984 $ 463.76Exercisable at December 31, 2021 545,359 329.13 2.5 110,246 n.a. n.a. n.a. n.a.* Amount includes 23,196 share units which vested and were converted to shares of stock and distributed in the first quarter of 2022.
Schedule Of Comparative Data For Stocks Option, Stock Awards And PSUs	Years Ended December 31, 2021 2020 2019Total compensation expense of stock-based compensation plans charged against income$ 31,420 $ 26,802 $ 21,338Total income tax benefit recognized in income for stock based compensation expense charged against income 7,918 6,904 5,373Total intrinsic value of stock options exercised 62,038 125,448 106,793Total intrinsic value of stock awards vested during the period 1,173 1,171 767Per-share weighted average grant-date fair value of stock awards granted 482.66 466.43 331.69
Schedule Of Valuation Assumptions	2021 2020 2019 Stock price on date of issuance$445.35 $471.74 $413.19 Grant date fair value per option$96.91 $97.56 $78.06 Number of options granted 326,806 298,670 287,010 Expected term (years) 3.5 3.5 4.0 Risk free rate of return 0.87% 0.24% 1.65%Volatility 28.81% 28.41% 21.25%Dividend yield 0.3% 0.3% 0.3%Forfeiture rate - - -
Schedule Of Other Data For Stock Options, Stock Awards And PSUs	Stock Stock Options Awards PSUs Total unrecognized compensation at the end of the year$ 52,790 $ - $ 8,579Weighted average period over which unrecognized compensation to be recognized (years) 2.3 - 1.7Actual income tax benefit realized$ 14,579 $ 276 $ 2,746Aggregate intrinsic value vested and expected to vest$ 160,200 $ - $ 29,744

Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2021

Stock-Based Compensation Plans [Abstract]

Schedule Of Comparative Date For Performance Stock Units

2021 Awards 2020 Awards 2019 Awards TSR Awards Shares of stock granted - target 6,277 5,156 7,029 Per-share fair value$ 599.04 $ 643.44 $ 434.51 Volatility 30.2% 21.4% 21.4%Risk-free interest rate 0.2% 1.3% 2.45% EPS Awards Shares of stock granted - target 6,277 5,156 7,029 Per-share fair value$ 491.34 $ 487.90 $ 322.40 Common Assumptions Service period (years) 2.9 2.9 2.9 Three-year measurement period ends December 31, 2023 2022 2021

Schedule Of Total Stock Option, Stock Award And PSU Activity

Stock Options Stock Awards Performance Units (PSUs) Weighted Weighted Average Aggregate Average Weighted Remaining Intrinsic Grant-Date Number of Average Number of Exercise Contractual Value Number of Per-Share Target Grant-Date Options Price Life (Years) (thousands) Awards Fair Value Units PriceOutstanding at January 1, 2021 1,070,071 $ 341.99 - $ - 38,196 $ 396.93Granted 326,806 445.35 2,430 482.66 24,615 419.79Exercised/Vested (226,268) 228.74 (2,430) 482.66 (26,521) 294.43Canceled/ Forfeited (16,572) 411.46 - - (456) 491.77Outstanding at December 31, 2021 1,154,037 $ 392.46 3.4 $ 160,200 - $ - 35,834 $ 487.29 Vested and expected to vest at December 31, 2021 1,154,037 $ 392.46 3.4 $ 160,200 - *$ - 55,984 *$ 463.76Exercisable at December 31, 2021 545,359 329.13 2.5 110,246 n.a. n.a. n.a. n.a.* Amount includes 23,196 share units which vested and were converted to shares of stock and distributed in the first quarter of 2022.

Schedule Of Comparative Data For Stocks Option, Stock Awards And PSUs

Years Ended December 31, 2021 2020 2019Total compensation expense of stock-based compensation plans charged against income$ 31,420 $ 26,802 $ 21,338Total income tax benefit recognized in income for stock based compensation expense charged against income 7,918 6,904 5,373Total intrinsic value of stock options exercised 62,038 125,448 106,793Total intrinsic value of stock awards vested during the period 1,173 1,171 767Per-share weighted average grant-date fair value of stock awards granted 482.66 466.43 331.69

Schedule Of Valuation Assumptions

2021 2020 2019 Stock price on date of issuance$445.35 $471.74 $413.19 Grant date fair value per option$96.91 $97.56 $78.06 Number of options granted 326,806 298,670 287,010 Expected term (years) 3.5 3.5 4.0 Risk free rate of return 0.87% 0.24% 1.65%Volatility 28.81% 28.41% 21.25%Dividend yield 0.3% 0.3% 0.3%Forfeiture rate - - -

Schedule Of Other Data For Stock Options, Stock Awards And PSUs

Stock Stock Options Awards PSUs Total unrecognized compensation at the end of the year$ 52,790 $ - $ 8,579Weighted average period over which unrecognized compensation to be recognized (years) 2.3 - 1.7Actual income tax benefit realized$ 14,579 $ 276 $ 2,746Aggregate intrinsic value vested and expected to vest$ 160,200 $ - $ 29,744