Stock-Based Compensation - Summary of Equity Award Transactions (Details) shares in Thousands	9 Months Ended
Oct. 27, 2019 $ / shares shares
Weighted Average Grant-Date Fair Value Per Share
Maximum number of PSUs issuable (in shares)	400
RSUs, PSUs, and Market-based PSUs
Number of Shares
Beginning balance (in shares)	16,000
Granted (in shares)	7,000
Vested restricted stock (in shares)	(7,000)
Canceled and forfeited (in shares)	(1,000)
Ending balance (in shares)	15,000
Weighted Average Grant-Date Fair Value Per Share
Beginning balance (in dollars per share) \| $ / shares	$ 129.92
Granted (in dollars per share) \| $ / shares	182.62
Vested restricted stock (in dollars per share) \| $ / shares	85.22
Canceled and forfeited (in dollars per share) \| $ / shares	186.34
Ending balance (in dollars per share) \| $ / shares	$ 173.01
Market-based PSUs
Weighted Average Grant-Date Fair Value Per Share
Measurement period	3 years
Maximum number of market-based PSUs issuable (in shares)	60

Maximum number of PSUs issuable

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Maximum number of market-based PSUs issuable

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Share-based Compensation Arrangement by Share-based Payment Award, Award Measurement Period

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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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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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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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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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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