Other Intangible Assets, Net (Narrative) (Details) $ in Millions	9 Months Ended
Oct. 28, 2017 USD ($)
Goodwill and Other Intangible Assets, Net [Abstract]
Additions of intangible assets of new leases	$ 2
Weighted-average amortization period	10 years

The increase (decrease) in the balance of capitalized lease acquisition costs during the period. The cost usually covers a variety of administrative costs, such as the cost of obtaining a credit report, verifying insurance coverage, lease commission charges, checking the accuracy and completeness of the lease documentation, and entering the lease in data processing and accounting systems.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 970
-SubTopic 340
-Section 35
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=77907274&loc=d3e29806-110303

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