(13) 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)	2017			2016			2017		2016
Net income (loss)	$	(22	)	$	(38	)	$	622	$	402
Shares used to compute earnings (loss) per share:
Weighted-average common stock outstanding — basic	309			301			309		301
Dilutive potential common shares related to stock award plans and from assumed exercise of stock options	—			—			4		3
Dilutive potential common shares related to the Convertible Notes ^(a)	—			—			—		2
Dilutive potential common shares related to the Warrants ^(a)	—			—			—		9
Weighted-average common stock outstanding — diluted	309			301			313		315
Earnings (loss) per share:
Basic	$	(0.07	)	$	(0.13	)	$	2.01	$	1.34
Diluted	$	(0.07	)	$	(0.13	)	$	1.99	$	1.28

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.

As a result of our net loss for the three months ended September 30, 2016, 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 and an additional 10 million shares related to the Warrants would have been included in the number of shares used to calculate Diluted EPS for the three months ended September 30, 2016.

For the six months ended September 30, 2017 and 2016, an immaterial amount of stock options, 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.


(a)	See Note 10 - Financing Arrangements in our Annual Report on Form 10-K for the fiscal year ended March 31, 2017, for additional information regarding the potential dilutive shares related to our Convertible Notes and Warrants.