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FAIR VALUE MEASUREMENTS - Contractual Maturities of Debt Securities (Details)
$ in Millions
Jan. 28, 2018
USD ($)
Contractual Maturities of Debt Securities, Amortized Cost  
Amortized cost, due in one year or less $ 23
Amortized cost, due after one through five years 114
Amortized cost, due after five through 10 years 85
Amortized cost, due after 10 years 50
Amortized cost, mortgage-backed securities 129
Amortized cost, debt securities 401
Contractual Maturities of Debt Securities, Fair Value  
Fair value, due in one year or less 22
Fair value, due after one through five years 113
Fair value, due after five through 10 years 85
Fair value, due after 10 years 51
Fair value, mortgage-backed securities 125
Fair value, debt securities $ 396