Net Income Per Share (Tables)

6 Months Ended

Jul. 31, 2016

Notes to financial statements [Abstract]

Reconciliation of numerators and denominators of basic and diluted net income (loss) per share computations

	Three Months Ended				Six Months Ended
	July 31,		July 26,		July 31,		July 26,
	2016		2015		2016		2015
	(In millions, except per share data)
Numerator:
Net income	$	253	$	26	$	449	$	160
Denominator:
Basic weighted average shares	534		541		536		545
Dilutive impact of outstanding securities:
Equity awards outstanding	23		11		20		13
1% Convertible Senior Notes	43		4		37		5
Warrants issued with the Notes	31		—		24		—
Diluted weighted average shares	631		556		617		563
Net income per share:
Basic (1)	$	0.47	$	0.05	$	0.84	$	0.29
Diluted (2)	$	0.40	$	0.05	$	0.73	$	0.28
Equity awards excluded from diluted net income per share because their effect would have been anti-dilutive	—		1		4		4

(1) Calculated as net income divided by basic weighted average shares.

(2) Calculated as net income divided by diluted weighted average shares.