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Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Jan. 30, 2022 | Jan. 31, 2021
Fair Value Disclosures [Abstract] |  |
Credit loss reserve for held-to-maturity debt securities and available for sale debt securities | $ 4.5 | $ 3.4
Increase in credit loss reserve for available-for-sale and held-to-maturity debt securities | 1.1 | 2.9
Non-Marketable Equity Securities Impairment | $ 0.2 | $ 3.9

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- Definition Debt Securities, Available-for-sale and Held To Maturity, Allowance for Credit Loss, Period Increase (Decrease) + References No definition available. + Details
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- Definition Debt Securities, Non-Marketable Equity Securities, Change In Present Value, Expense (Reversal) + References No definition available. + Details
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- Definition Amount of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity) and investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aaa) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aaa) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563 + Details
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