Acquisition of Oakleaf Global Holdings (Details 1) (USD $) In Millions, unless otherwise specified	Jul. 28, 2011 Year
Preliminary allocation of the purchase price to intangible assets
Total intangible assets subject to amortization	$ 92
Total intangible assets subject to amortization, Weighted Average Amortization Periods	10.5
Customer relationships
Preliminary allocation of the purchase price to intangible assets
Total intangible assets subject to amortization	74
Total intangible assets subject to amortization, Weighted Average Amortization Periods	10.0
Vendor relationships
Preliminary allocation of the purchase price to intangible assets
Total intangible assets subject to amortization	9
Total intangible assets subject to amortization, Weighted Average Amortization Periods	10.0
Trademarks
Preliminary allocation of the purchase price to intangible assets
Total intangible assets subject to amortization	$ 9
Total intangible assets subject to amortization, Weighted Average Amortization Periods	15.0