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Division Consolidation Costs (Activity Associated With Severance Accrual Established In Connection With Division Consolidation And Localization Initiative) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Oct. 30, 2010
Division Consolidation Costs [Abstract]
Severance costs, at January 30, 2010	$ 69
Payments	(69)
Severance costs, at October 30, 2010	$ 0

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.