Earnings (Loss) Per Share (Tables)

6 Months Ended

Sep. 30, 2018

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 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