Earnings Per Share

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Earnings Per Share

Note 20. Earnings Per Share

Basic earnings per share is computed by dividing net income (loss) by the weighted-average number of shares of common stock outstanding. Diluted earnings per share is computed by dividing net income (loss) by the weighted-average number of shares of common stock outstanding during the period, increased to include the number of shares of common stock that would have been outstanding had potential dilutive shares of common stock been issued. The dilutive effect of stock options, RSUs and performance shares are reflected in diluted net income (loss) per share by applying the treasury stock method.

A reconciliation of the amounts included in the computation of basic earnings (loss) per share from continuing operations and diluted earnings (loss) per share from continuing operations is as follows:

	Year Ended December 31,
(In millions, except per share data)	2019		2018		2017
Income (Loss) from Continuing Operations	$	129	$	(163)	$	341
Weighted-average common shares outstanding		135.8		135.5		134.4
Effect of dilutive securities:
RSUs		0.1		—		0.1
Stock options(1)		0.3		—		0.9
Weighted-average common shares outstanding - assuming dilution		136.2		135.5		135.4
Basic earnings (loss) per share from continuing operations	$	0.95	$	(1.20)	$	2.54
Diluted earnings (loss) per share from continuing operations	$	0.95	$	(1.20)	$	2.52

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(1)Options to purchase 0.5 million and 0.9 million shares for the years ended December 31, 2019 and 2017, respectively, were not included in the diluted earnings per share calculation because their effect would have been antidilutive.

Securities are not included in the table in periods when antidilutive. For the year ended December 31, 2018, weighted average potentially dilutive shares from RSUs of 0.2 million and weighted average potentially dilutive shares from stock options of 0.4 million with a weighted average exercise price of $29.34 were excluded from the dilutive earnings (loss) per share calculation due to the antidilutive effect such shares would have had on net loss per common share.