Stock Based Compensation (Tables)

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Stock Based Compensation Expense

The following table provides information regarding the Company’s stock-based compensation expense:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Stock-based compensation	$	35.4	$	28.9	$	102.9	$	84.8
Tax effect recognized in net earnings from continuing operations	7.4		6.1		21.6		17.8

Schedule of Weighted Average Assumptions Used to Value Option Grants

The following weighted average assumptions were used to estimate the fair value of options granted during current and prior year periods using the Black-Scholes option-pricing model:

	Nine months ended September 30,
	2021	2020
Risk-free interest rate (%)	0.94	0.81
Expected option life (years)	5.61	5.64
Expected volatility (%)	25.15	20.36
Expected dividend yield (%)	0.56	0.62