9. Earnings Per Share (“EPS”)

For the three months ended March 31, 2018, approximately 6 million of potentially dilutive shares were excluded from the computation of diluted earnings per share due to their antidilutive effect. For the three months ended March 31, 2017, approximately 8 million of potentially dilutive shares were excluded from the computation of diluted loss per share due to the Company recognizing a net loss for the period.

Basic and diluted income (loss) per share follows (in millions, except share data):

	Three Months Ended March 31,
	2018		2017
Numerator:
Net income (loss) attributable to the Company's stockholders	$	2	$	(23	)
Denominator:
Weighted average basic common shares outstanding		108,074,718		107,550,846
Effect of dilutive securities		98,041		—
Weighted average diluted common shares outstanding		108,172,759		107,550,846
Earnings (loss) per share attributable to the Company's stockholders:
Basic	$	0.02	$	(0.21	)
Diluted	$	0.02	$	(0.21	)

ASC Topic 260, “Earnings Per Share,” requires companies with unvested participating securities to utilize a two-class method for the computation of net income attributable to the Company per share. The two-class method requires a portion of net income attributable to the Company to be allocated to participating securities, which are unvested awards of share-based payments with non-forfeitable rights to receive dividends or dividend equivalents, if declared. Net losses are not allocated to nonvested shares in periods that the Company determines that those shares are not obligated to participate in losses. For the periods that the Company recognized net income, net income attributable to the Company allocated to these participating securities was excluded from net income attributable to the Company’s stockholders in the numerator of the earnings per share computation.