Share-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2023

Schedule of Changes in Stock Options

The following table presents stock option activity for the year ended December 31, 2023:

	Number of shares (thousands)			Weighted-average exercise price		Weighted-average remaining contractual term (years)		Aggregate intrinsic value (millions)
Option shares outstanding, December 31, 2022		33.9		$	47.35
Option shares exercised		(27.7	)	$	47.01
Option shares outstanding, December 31, 2023		6.2		$	48.86		0.4	$	0.3
Option shares exercisable, vested and expected to vest,      December 31, 2023		6.2		$	48.86		0.4	$	0.3

Schedule of Information Related to Stock Option Exercises

The following table presents information related to stock option exercises:

	2023		2022		2021
Total intrinsic value of stock options exercised	$	1.3	$	1.3	$	4.1
Cash proceeds received from stock options exercised		0.2		1.8		2.5
Tax deduction realized from stock options exercised		0.3		0.1		0.4

Schedule of Restricted Stock and Restricted Stock Units Activity

We also grant non-vested stock awards in the form of Restricted Stock Units (“RSUs”), Performance Stock Units (“PSUs”) and Restricted Stock Awards ("RSAs"). A summary of the 2023 activity related to the RSUs, PSUs and RSAs is as follows:

	Non-Vested Stock Awards
	RSUs						PSUs						RSAs
	Number of shares (thousands)			Weighted- average fair value at grant date			Number of shares (thousands)			Weighted- average fair value at grant date			Number of shares (thousands)			Weighted- average fair value at grant date
December 31, 2022		112.1		$	86.66			306.4		$	99.38			50.7		$	78.05
Granted		180.5			73.61			101.1			98.06			-			-
Performance adjustments		-			-			(80.3	)		(101.96	)		-			-
Vested		(76.0	)		(86.36	)		-			-			(50.6	)		(78.05	)
Forfeited		(11.2	)		(81.83	)		(18.7	)		(96.62	)		(0.1	)		(77.22	)
December 31, 2023		205.4		$	75.56			308.5		$	98.44			-		$	-

ScheduleOfShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsValuationAssumptionsTableTextBlock

	2023			2022
Weighted-average grant date fair value of market-based PSUs granted (dollars per award)	$	121.69		$	104.92
Assumptions
Risk-free rate of return		4.5	%		1.8	%
Expected volatility		38.7	%		37.0	%
Expected term (in years)		3.1			3.1
Expected dividend yield		0.0	%		0.0	%