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Fair Value Measurements - Schedule of Fair Value Measurements - Recurring Basis (Details) - USD ($)
$ in Millions
Apr. 30, 2016
Jan. 30, 2016
May. 02, 2015
Other current assets      
Other current assets $ 1,099 $ 1,161 $ 2,037
Other noncurrent assets      
Other noncurrent assets 830 840 969
Other noncurrent liabilities      
Interest rate swaps 1,889 1,897 1,404
Fair value measured on recurring basis | Level 1 | Prepaid forward contracts      
Other current assets      
Other current assets 35 32 35
Fair value measured on recurring basis | Level 1 | Short-term investments      
Cash and cash equivalents      
Short-term investments 2,931 3,008 2,073
Fair value measured on recurring basis | Level 2 | Interest rate swaps      
Other current assets      
Other current assets 5 12 0
Other noncurrent assets      
Other noncurrent assets 26 27 46
Other current liabilities      
Interest rate swaps 3 8 0
Other noncurrent liabilities      
Interest rate swaps 0 0 20
Fair value measured on recurring basis | Level 3 | Beneficial interest asset      
Other current assets      
Other current assets 16 19 35
Other noncurrent assets      
Other noncurrent assets $ 9 $ 12 $ 25