Stock Incentive Plan - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares approved for issuance under Stock Incentive Plan	695,700,000
Shares available for future grants	46,300,000
Compensation cost related to share-based compensation	$ 103.6	$ 101.4	$ 102.3
Unrecognized compensation cost related to nonvested share-based compensation	$ 146.5
Unrecognized compensation cost weighted-average recognition period, years	2 years
Options granted at market price in percentage	100.00%
Vesting period of grant, years	3 years
Term in which vesting period starts after grant, years	1 year
Maximum term of grant, years	8 years 9 months 22 days
Intrinsic value of options exercised	$ 284.4	$ 176.7	$ 239.7
Options outstanding expected to vest represents total unvested options adjusted for anticipated forfeitures	14,600,000
Performance-based stock, granted (in shares)	1,267,802	1,124,012	1,027,146
Shares granted weighted average grant date fair value (dollars per share)	$ 41.17	$ 38.36	$ 39.25
Fair value of performance-based restricted stock that vested	$ 30.1	$ 35.2	$ 38.5
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based restricted stock and other awards, period	3 years
Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred shares outstanding	607,552
Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum term of grant, years	10 years

Options granted at market price in percentage

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Performance Based Restricted Stock And Other Awards Period

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Share Based Compensation Arrangement By Share Based Payment Award Vesting Period From Date Of Grant

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Number of shares issued pursuant to the terms of a deferred compensation arrangement.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made 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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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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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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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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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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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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