Stock-Based Compensation Plans - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options exercised	$ 1.6	$ 12.3	$ 18.3
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period	3 years
Total fair value of vested instruments other than options	$ 55.5	$ 50.2	$ 58.2
Weighted average grant date fair value (dollars per share)	$ 103.55	$ 94.30	$ 78.66
Unrecognized compensation expense	$ 47.1
Weighted average period of recognition (in months)	1 year 2 months 12 days	21 months 24 days
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period	3 years
Total fair value of vested instruments other than options	$ 3.3	$ 4.2	$ 2.1
Weighted average grant date fair value (dollars per share)	$ 103.71	$ 94.90	$ 78.23
Unrecognized compensation expense	$ 5.9
Weighted average period of recognition (in months)	8 months 12 days
Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant	4,000,000.0
Vesting period	3 years
Expected term	10 years
Director Deferred Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of the share price of common stock used in the calculation to determine the number of options issued to a director (in hundredths)	33.00%
Director Deferred Compensation Plan \| Stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term	10 years

The percentage of the price of a share of the company's common stock.

No definition available.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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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.

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Number of shares authorized for issuance under share-based payment arrangement.

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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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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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