Contingencies and Commitments - Commitments (Details) $ in Millions	12 Months Ended
Jan. 28, 2017 USD ($)
Outstanding letters of credit and bankers' acceptances [Member]
Commitments [Line Items]
Unrecorded Unconditional Purchase Obligation, Purchases	$ 89

The amount purchased during the period under an unrecorded unconditional purchase obligation (for example, under the take-or-pay or throughput contract).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=73718637&loc=d3e25336-109308

Name:	us-gaap_UnrecordedUnconditionalPurchaseObligationPurchases
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration