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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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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.

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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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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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- Definition

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.

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

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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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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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STOCK-BASED COMPENSATION - Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jan. 27, 2019	Jul. 29, 2018	Jan. 28, 2018
Active, Full-Time Employees
STOCK-BASED COMPENSATION
Granted (in shares)		200
Active, Part-Time Employees as of April 30, 2018
STOCK-BASED COMPENSATION
Granted (in shares)		100
Employee and Director Stock Option
Shares
Outstanding at the beginning of the period (in shares)	29,536,000
Granted (in shares)	1,474,000
Exercised (in shares)	1,097,000
Forfeited (in shares)	383,000
Outstanding at the end of the period (in shares)	29,530,000
Exercisable at the end of the period (in shares)	21,031,000
Weighted- Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 23.55
Granted (in dollars per share)	44.91
Exercised (in dollars per share)	14.60
Forfeited (in dollars per share)	36.17
Outstanding at the end of the period (in dollars per share)	24.78
Exercisable at end of period (in dollars per share)	$ 19.69
Weighted- Average Remaining Contractual Term (Years)
Outstanding at the end of the period	5 years 4 months 24 days
Exercisable at end of period	4 years
Aggregate Intrinsic Value
Outstanding at the end of the period	$ 497,495
Exercisable at end of period	$ 457,942
Weighted-average grant date fair value of stock options granted and the total intrinsic value of options exercised
Weighted-average grant date fair value (in dollars per share)	$ 9.48		$ 6.93
Intrinsic value of exercised options	$ 32,241		$ 56,302
Weighted-average assumptions used to calculate fair value of each ordinary option award
Risk-free interest rate	2.90%		2.30%
Dividend yield	1.90%		2.00%
Stock price volatility	19.00%		19.00%
Expected option life	8 years		8 years
Employee Stock Option
STOCK-BASED COMPENSATION
Vesting period	4 years	5 years
Stock option expiration period	10 years	10 years