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Summary of Significant Accounting Policies (Receivables) (Details) - USD ($) $ in Millions | Jan. 28, 2018 | Jan. 29, 2017
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Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Receivables, net | $ 1,952 | $ 2,029
Card Receivables [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Receivables, net | 734 | 729
Rebate Receivables [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Receivables, net | 609 | 625
Customer Receivables [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Receivables, net | 261 | 216
Other Receivable [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Receivables, net | $ 348 | $ 459

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- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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