Stockholders' Equity, Comprehensive Income and Share-Based Compensation (Stock Option Activity) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
Oct. 26, 2014	Oct. 27, 2013	Oct. 28, 2012
Shares
Beginning Balance	6	21	30
Granted and assumed in Varian acquisition	0	1	5
Exercised	(4)	(11)	(4)
Canceled and forfeited	0	(5)	(10)
Ending Balance	2	6	21
Exercisable, Shares	1	5	20
Weighted Average Exercise Price
Beginning Balance (in dollars per share)	$ 9.12	$ 10.53	$ 13.05
Granted and assumed in Varian acquisition (in dollars per share)	$ 0.00	$ 15.06	$ 4.85
Exercised (in dollars per share)	$ 7.85	$ 8.16	$ 7.30
Canceled and forfeited (in dollars per share)	$ 0.00	$ 17.62	$ 16.76
Ending Balance (in dollars per share)	$ 10.87	$ 9.12	$ 10.53
Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 7.97	$ 7.90	$ 10.71

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

+ References

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Number of share options (or share units) exercised during the current period.

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