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DEBT - Total Long-term Debt, Excluding Current Installments - Tabular Disclosure (Details) - USD ($)
$ in Millions
Apr. 30, 2017
Jan. 29, 2017
DEBT    
Total net long-term debt $ 3,730 $ 3,812
Less current installments (14) (14)
Total net long-term debt, excluding current installments $ 3,716 $ 3,798