(15) EARNINGS (LOSS) PER SHARE

The following table summarizes the computations of basic earnings per share (“Basic EPS”) and diluted earnings per share (“Diluted EPS”). Basic EPS is computed as net income divided by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur from common shares issuable through stock-based compensation plans including stock options, restricted stock, restricted stock units, ESPP purchase rights, warrants, and other convertible securities using the treasury stock method.



	Three Months Ended September 30,					Six Months Ended September 30,
(In millions, except per share amounts)	2018		2017			2018		2017
Net income (loss)	$	255	$	(22	)	$	548	$	622
Shares used to compute earnings (loss) per share:
Weighted-average common stock outstanding — basic	305		309			305		309
Dilutive potential common shares related to stock award plans and from assumed exercise of stock options	2		—			4		4
Weighted-average common stock outstanding — diluted	307		309			309		313
Earnings (loss) per share:
Basic	$	0.84	$	(0.07	)	$	1.80	$	2.01
Diluted	$	0.83	$	(0.07	)	$	1.77	$	1.99

For the three months ended September 30, 2018 and six months ended September 30, 2018 and 2017, an immaterial amount of restricted stock units and market-based restricted stock units were excluded from the treasury stock method computation of diluted shares as their inclusion would have had an antidilutive effect. Our performance-based restricted stock units, which are considered contingently issuable shares, are also excluded from the treasury stock method computation because the related performance-based milestones were not achieved as of the end of the reporting period.

As a result of our net loss for the three months ended September 30, 2017, we have excluded all potentially dilutive common

shares from the diluted loss per share calculation as their inclusion would have had an antidilutive effect. Had we reported net

income for this period, an additional 3 million shares of common stock related to our outstanding equity-based instruments

would have been included in the number of shares used to calculate Diluted EPS for the three months ended September 30,

2017.