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Stock Based Compensation (Tables)

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

Stock Based Compensation Expense

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

			Three Months Ended June 30,												Six Months Ended June 30,
			2021						2020						2021						2020
Stock-based compensation			$	36.4					$	30.5					$	69.3					$	58.2
Tax effect recognized in net earnings			7.6						6.4						14.6						12.2

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:

			Six months ended June 30,
			2021						2020
Risk-free interest rate (%)			0.94						0.83
Expected option life (years)			5.61						5.64
Expected volatility (%)			25.16						20.23
Expected dividend yield (%)			0.56						0.62

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- References

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- Definition

Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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