Description of Business and Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jan. 31, 2013

Accounting Policies [Abstract]

Composition of shares used in the computation of basic and diluted net income per share

The following table presents the composition of shares used in the computation of basic and diluted net income per share for the periods indicated.

	Three Months Ended					Six Months Ended
(In millions, except per share amounts)	January 31, 2013		January 31, 2012			January 31, 2013		January 31, 2012
Numerator:
Net income from continuing operations	$	71	$	121		$	20	$	63
Net income (loss) from discontinued operations	—		(3		)	32		(9		)
Net income	$	71	$	118		$	52	$	54
Denominator:
Shares used in basic per share amounts:
Weighted average common shares outstanding	296		297			296		298
Shares used in diluted per share amounts:
Weighted average common shares outstanding	296		297			296		298
Dilutive common equivalent shares from stock options
and restricted stock awards	7		9			6		9
Dilutive weighted average common shares outstanding	303		306			302		307
Basic and diluted net income per share:
Basic net income per share from continuing operations	$	0.24	$	0.41		$	0.07	$	0.21
Basic net income (loss) per share from discontinued operations	—		(0.01		)	0.11		(0.03		)
Basic net income per share	$	0.24	$	0.40		$	0.18	$	0.18
Diluted net income per share from continuing operations	$	0.23	$	0.40		$	0.07	$	0.21
Diluted net income (loss) per share from discontinued operations	—		(0.01		)	0.10		(0.03		)
Diluted net income per share	$	0.23	$	0.39		$	0.17	$	0.18
Shares excluded from computation of diluted net income per share:
Weighted average stock options and restricted stock units excluded from computation due to anti-dilutive effect	3		3			3		3