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Long-term Equity-based Compensation (Tables)

12 Months Ended

Dec. 31, 2021

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The assumptions used in the Black-Scholes pricing model for Tandem Awards granted during the years ended December 31, 2021, 2020 and 2019 are presented below.

						2021												2020												2019
RANGE OF VALUATION ASSUMPTIONS
Expected Volatility						33.67		%	-			38.04		%				29.22		%	-			37.27		%				28.97		%	-			33.78		%
Risk-free Interest Rate						0.26			-			1.33						0.17			-			1.46						1.35			-			2.60
Expected Dividend Yield						1.18			-			1.78						1.19			-			1.48						1.05			-			1.38
WEIGHTED-AVERAGE EXPECTED LIFE IN YEARS
Employee Grants						4			-			6						4			-			6						4			-			6

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award

Tandem Award activity for the year ended December 31, 2021 is presented below.

						Shares Subject to Awards						Weighted- average Exercise Price Per Share ($)						Weighted- average Remaining Contractual Life (in Years)						Aggregate Intrinsic Value ($ In Millions)
Outstanding at Beginning of the Year						1,900,957						$	60.97
Granted						406,553						69.88
Exercised						(75,802)						60.84
Forfeited or Expired						(127,729)						73.59
Outstanding at December 31, 2021						2,103,979						61.93						6.50						$	12.1
Vested and Expected to Vest at December 31, 2021						2,039,134						$	61.57					6.44						$	12.1
Exercisable at December 31, 2021						1,389,206						$	56.26					5.50						$	12.0

Schedule of Options Outstanding

Information pertaining to Tandem Awards outstanding at December 31, 2021 is presented below.

												Outstanding																		Exercisable
Range of Exercise Prices ($)												Shares Subject to Awards						Weighted- average Exercise Price Per Share ($)						Weighted- average Remaining Contractual Life (in Years)						Shares Subject to Awards						Weighted- average Exercise Price Per Share ($)
$	20.01		-			30.00						108,562						$	27.79					4.03						108,562						$	27.79
30.01			-			40.00						122,906						34.42						3.33						122,906						34.42
40.01			-			50.00						345,616						42.44						4.74						345,616						42.44
50.01			-			60.00						335,000						59.80						5.97						331,639						59.87
60.01			-			70.00						405,923						69.26						8.75						50,325						66.90
70.01			-			80.00						749,520						76.31						7.22						406,480						76.31
80.01			-			90.00						36,452						83.69						6.16						23,678						84.23
20.01			-			90.00						2,103,979						61.93						6.50						1,389,206						56.26

Schedule of Share-based Compensation, Nonemployee Director Deferred Stock Unit Award Plan, Activity

Activity related to DSU awards for the year ended December 31, 2021 is presented below.

						Number of DSUs						Weighted- average Grant-date Fair Value Per DSU
Vested Balance at Beginning of the Year						44,820						$	44.74
Reduction for Shares Issued on Conversion						—						—
Vested Balance at December 31, 2021						44,820						$	44.74

Time Vested Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Restricted Stock Units and Performance Stock Units Activity

Activity related to nonvested RSUs for the year ended December 31, 2021 is presented below.

									Time-based Restricted Stock Unit Awards
															Number of Restricted Stock Units						Weighted- average Grant-date Fair Value Per Unit
Nonvested Balance at Beginning of the Year															132,026						$	72.30
Granted															38,375						68.38
Vested															(81,967)						72.85
Forfeited															(6,733)						73.40
Nonvested Balance at December 31, 2021															81,701						$	69.82

Performance Based Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Restricted Stock Units and Performance Stock Units Activity

Activity related to nonvested PSU awards for the year ended December 31, 2021 is presented below.

			PSU Awards
			Number of PSUs						Weighted- average Grant-date Fair Value Per PSU
Nonvested Balance at Beginning of the Year			502,857						$	78.12
Granted			385,244						72.07
Vested			(195,847)						62.18
Forfeited			(91,933)						79.96
Nonvested Balance at December 31, 2021			600,321						$	79.15

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