v3.3.1.900
Fair Value Measurements (Details Textual)
$ in Millions
12 Months Ended
Jan. 29, 2016
USD ($)
count
Quantitative Disclosures of Fair Value Information  
Equity method investment impairment losses $ 530
Fair Value, Measurements, Nonrecurring [Member]  
Quantitative Disclosures of Fair Value Information  
Equity method investment impairment losses $ 530
Fair Value, Measurements, Nonrecurring [Member] | Operating Locations [Member]  
Quantitative Disclosures of Fair Value Information  
Number of locations that experienced a triggering event | count 2
Number of locations impaired during the period | count 2
Impairment losses $ 8
Discount rate 6.30%
Fair Value, Measurements, Nonrecurring [Member] | Excess Properties [Member]  
Quantitative Disclosures of Fair Value Information  
Number of locations impaired during the period | count 6
Impairment losses $ 2
Percentage reduction in inputs used to estimate fair value 10.00%
Fair Value, Measurements, Nonrecurring [Member] | Equity Method Investments [Member]  
Quantitative Disclosures of Fair Value Information  
Sales growth rate used in discounted cash flow model 6.20%
Terminal year sales growth rate used in discounted cash flow model 3.00%
Discount rate 10.70%
Fair Value, Measurements, Nonrecurring [Member] | Minimum [Member] | Operating Locations [Member]  
Quantitative Disclosures of Fair Value Information  
Sales growth rate used in discounted cash flow model 3.90%
Fair Value, Measurements, Nonrecurring [Member] | Maximum [Member] | Operating Locations [Member]  
Quantitative Disclosures of Fair Value Information  
Sales growth rate used in discounted cash flow model 4.30%