Financing Activities (Detail Of Debt Repayments) (Details) - USD ($) $ in Millions	3 Months Ended
May 04, 2019	May 05, 2018
Repayments of Debt	$ 3	$ 3
Nine Point Seven Five Percent Amortizing Debentures Due Two Thousand Twenty One [Member]
Extinguishment of debt	1	1
Nine Point Five Percent Amortizing Debentures Due Two Thousand Twenty One [Member]
Extinguishment of debt	$ 2	$ 2

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

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