Net Income Per Share (Tables)

12 Months Ended

Jan. 31, 2016

Notes to financial statements [Abstract]

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

	Year Ended
	January 31, 2016		January 25, 2015		January 26, 2014
	(In millions, except per share data)
Numerator:
Net income	$	614	$	631	$	440
Denominator:
Denominator for basic net income per share, weighted average shares	543		552		588
Effect of dilutive securities:
Equity awards outstanding	13		11		7
Assumed conversion of 1% Convertible Senior Notes Due 2018	13		—		—
Denominator for diluted net income per share, weighted average shares	569		563		595
Net income per share:
Basic	$	1.13	$	1.14	$	0.75
Diluted	$	1.08	$	1.12	$	0.74
Potentially dilutive securities excluded from income per diluted share because their effect would have been anti-dilutive	10		12		26