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Data Breach - Schedule of Data Breach Balance Sheet Rollforward (Details) - Data Breach - USD ($) $ in Millions	3 Months Ended
	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

X

- Definition

Data Breach, Insurance Receivable, Payments Received

+ References

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- Definition

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- Definition

insurance Settlements Receivable [Roll Forward]

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- Definition

Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy.

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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

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- Definition

Amount of payments made reducing loss contingency liability.

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-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

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- Definition

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

+ References

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-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

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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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