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Data Breach - Schedule of Data Breach Balance Sheet Rollforward (Details) - Data Breach - USD ($) $ in Millions | 3 Months Ended
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Apr. 30, 2016 | May. 02, 2015
Liabilities |  |
Beginning balance | $ 80 | $ 171
Expenses incurred | 0 | 3
Payments made / received | (1) | (7)
Ending balance | 79 | 167
Insurance Receivable |  |
Beginning balance | 20 | 60
Expenses incurred | 0 | 0
Payments made / received | (4) | (5)
Ending balance | $ 16 | $ 55

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- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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- Definition Amount of payments made reducing loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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- Definition Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
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- Details
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