Litigation and Other Charges (Reorganization Accrual) (Details) $ in Millions	9 Months Ended
Nov. 03, 2018 USD ($)
Beginning balance	$ 7
Cash payments	(6)
Ending balance	1
Other Related Charges [Member]
Beginning balance	2
Cash payments	(1)
Ending balance	1
Severance and Benefit Costs [Member]
Beginning balance	5
Cash payments	$ (5)

Payments of cash to employees, including wages and salaries, during the current period.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3367-108585

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