Self-Insurance (Narrative) (Details) $ in Millions	12 Months Ended
	Jan. 28, 2017 USD ($)
Workers' compensation [Member]
Self-insurance reserve [Line Items]
Self-insurance policy retention per claim	$ 1
Workers' compensation policy limit	no policy limits
Other liability [Member]
Self-insurance reserve [Line Items]
Self-insurance policy retention per claim	$ 3
Employment practices liability [Member]
Self-insurance reserve [Line Items]
Self-insurance policy limit	30
Commercial general liability [Member]
Self-insurance reserve [Line Items]
Self-insurance policy limit	$ 151