| STOCK-BASED COMPENSATION PLAN (Fair Value of Employee's Purchase Rights) (Details) - $ / shares | 12 Months Ended | ||
|---|---|---|---|
| Feb. 02, 2019 | Feb. 03, 2018 | Jan. 28, 2017 | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Expected term in years | 3 months | 3 months | 3 months | 
| Expected volatility | 18.80% | 10.90% | 14.60% | 
| Annual dividend yield | 0.00% | 0.00% | 0.00% | 
| Risk free interest rate | 1.90% | 1.10% | 0.40% | 
| Employee Stock Option [Member] | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Expected term in years | 6 years 6 months | ||
| Expected volatility | 24.51% | ||
| Annual dividend yield | 0.00% | ||
| Risk free interest rate | 2.09% | ||
| Weighted-average fair value of options granted during the period | $ 22.10 | ||
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- Definition 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition 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. No definition available. 
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Details 
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