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Fair Value Measurements and Concentrations of Credit Risk (Financial Assets Measured at Fair Value on a Recurring and Nonrecurring Basis) (Details) - USD ($) $ in Millions | Jan. 28, 2023 | Jan. 29, 2022
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Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Marketable equity and debt securities | $ 35 | $ 39
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Marketable equity and debt securities | 35 | 39
Significant Observable Inputs (Level 2) |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Marketable equity and debt securities | 0 | 0
Significant Unobservable Inputs (Level 3) |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Marketable equity and debt securities | $ 0 | $ 0

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- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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