Earnings (Loss) Per Share (Tables)

9 Months Ended

Dec. 31, 2015

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, common stock through our ESPP, 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)	2015			2014		2015		2014
Net income (loss)	$	(45	)	$	142	$	257	$	480
Shares used to compute earnings (loss) per share:
Weighted-average common stock outstanding — basic	311			311		311		312
Dilutive potential common shares related to stock award plans and from assumed exercise of stock options	—			8		7		8
Dilutive potential common shares related to the Notes	—			4		8		2
Dilutive potential common shares related to the Warrants	—			—		7		—
Weighted-average common stock outstanding — diluted	311			323		333		322
Earnings (loss) per share:
Basic	$	(0.14	)	$	0.46	$	0.83	$	1.54
Diluted	$	(0.14	)	$	0.44	$	0.77	$	1.49