Basis of Presentation (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Apr. 28, 2012
Basis of Presentation (Narrative) [Abstract]
Accrued Liabilities, Current	$ 30

The amount of a reclassification adjustment made to prior period financial statement amounts.

No definition available.

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