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Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Components of Basic and Diluted Earnings Per Share

The components of basic and diluted earnings per share are as follows:

			Three Months Ended June 30,												Six Months Ended June 30,
In millions, except per share amounts			2021						2020						2021						2020
Net income (loss) attributable to common stockholders			$	44					$	(43)					$	97					$	125
Weighted average outstanding shares of common stock			109.0						108.5						108.9						109.4
Dilutive effect of employee stock options, restricted stock and other stock awards			3.7						—						3.8						1.2
Common stock and common stock equivalents			112.7						108.5						112.7						110.6
Net income (loss) per share:
Basic			$	0.40					$	(0.40)					$	0.89					$	1.14
Diluted			$	0.39					$	(0.40)					$	0.86					$	1.13

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- References

No definition available.

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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=124432515&loc=d3e3550-109257

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