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Earnings (Loss) Per Share (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Basic and Diluted EPS

The following table presents the calculation of basic and diluted EPS:

			2020						2019						2018
Net income from continuing operations			$	381.8					$	450.8					$	395.9
Income (loss) from discontinued operations, net of income taxes			(0.2)						(0.8)						0.1
Net income			$	381.6					$	450.0					$	396.0
Basic weighted average common shares outstanding			88.3						90.1						90.9
Dilutive effect of stock options and unvested RSUs			0.4						0.4						0.4
Diluted weighted average common shares outstanding			88.7						90.5						91.3
Basic EPS amounts(1):
Continuing operations			$	4.32					$	5.00					$	4.36
Discontinued operations			$	—					$	(0.01)					$	—
Net income			$	4.32					$	4.99					$	4.36
Diluted EPS amounts(1):
Continuing operations			$	4.30					$	4.98					$	4.34
Discontinued operations			$	—					$	(0.01)					$	—
Net income			$	4.30					$	4.97					$	4.34
(1) EPS amounts are calculated discretely and, therefore, may not add up to the total due to rounding.

Anti-Dilutive Equity Instruments Excluded From The Computation Of Diluted Earnings Per Share

A summary of anti-dilutive equity instruments excluded from the computation of diluted EPS is as follows:

			2020						2019						2018
Anti-dilutive equity instruments excluded from the computation of diluted EPS			1.7						2.4						2.3

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- References

No definition available.

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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