Leases Leases Additional Information (Details) $ in Millions	12 Months Ended
Jan. 28, 2017 USD ($)
Leases [Abstract]
Operating Leases, Income Statement, Sublease Revenue	$ 20
Latest Lease Expiration Date	Dec. 31, 2032

The amount of revenue recognized for the period under subleasing arrangements.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 55
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6584307&loc=d3e41620-112719

Name:	us-gaap_OperatingLeasesIncomeStatementSubleaseRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration