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Fair Value Measurements - Schedule of Fair Value Measurements - Recurring Basis (Details) - USD ($)
$ in Millions
Jan. 30, 2016
Jan. 31, 2015
Cash and cash equivalents    
Short-term investments $ 3,008 $ 1,520
Other current assets    
Other current assets 1,161 2,074
Other noncurrent assets    
Other noncurrent assets 840 879
Other noncurrent liabilities    
Other noncurrent liabilities 1,897 1,452
Level 1 | Short-term investments | Fair Value Measurements - Recurring Basis    
Cash and cash equivalents    
Short-term investments 3,008 1,520
Level 1 | Prepaid forward contracts | Fair Value Measurements - Recurring Basis    
Other current assets    
Other current assets 32 38
Level 2 | Fair Value Measurements - Recurring Basis    
Other current liabilities    
Other current liabilities 8 0
Other noncurrent liabilities    
Other noncurrent liabilities 0 24
Level 2 | Interest rate swaps | Fair Value Measurements - Recurring Basis    
Other current assets    
Other current assets 12 0
Other noncurrent assets    
Other noncurrent assets 27 65
Level 3 | Beneficial interest asset | Fair Value Measurements - Recurring Basis    
Other current assets    
Other current assets 19 43
Other noncurrent assets    
Other noncurrent assets $ 12 $ 31