Earnings (Loss) Per Share (Tables)

9 Months Ended

Dec. 31, 2017

Earnings Per Share Reconciliation [Abstract]

Computation Of Basic Earnings (Loss) And Diluted 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 December 31,						Nine Months Ended December 31,
(In millions, except per share amounts)	2017			2016			2017		2016
Net income (loss)	$	(186	)	$	(1	)	$	436	$	401
Shares used to compute earnings (loss) per share:
Weighted-average common stock outstanding — basic	308			303			309		302
Dilutive potential common shares related to stock award plans and from assumed exercise of stock options	—			—			3		3
Dilutive potential common shares related to the Convertible Notes (a)	—			—			—		1
Dilutive potential common shares related to the Warrants (a)	—			—			—		8
Weighted-average common stock outstanding — diluted	308			303			312		314
Earnings (loss) per share:
Basic	$	(0.60	)	$ (	0.00)		$	1.41	$	1.33
Diluted	$	(0.60	)	$ (	0.00)		$	1.40	$	1.28