INVESTMENTS (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
Oct. 28, 2016	Jan. 29, 2016
Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Line Items]
Carrying Value	$ 6,142	$ 114
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Cost	6,146	114
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Unrealized Gain	8	0
Unrealized (Loss)	(12)	0
Short-term Investments
Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Line Items]
Debt securities, carrying value	1,857	0
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Debt securities, cost	1,857	0
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Debt securities, unrealized gain	0	0
Debt securities, unrealized (loss)	0	0
Short-term Investments \| U.S. government and agencies
Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Line Items]
Debt securities, carrying value	186	0
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Debt securities, cost	186	0
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Debt securities, unrealized gain	0	0
Debt securities, unrealized (loss)	0	0
Short-term Investments \| U.S. corporate debt securities
Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Line Items]
Debt securities, carrying value	550	0
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Debt securities, cost	550	0
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Debt securities, unrealized gain	0	0
Debt securities, unrealized (loss)	0	0
Short-term Investments \| Foreign debt securities
Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Line Items]
Debt securities, carrying value	755	0
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Debt securities, cost	755	0
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Debt securities, unrealized gain	0	0
Debt securities, unrealized (loss)	0	0
Short-term Investments \| Municipal obligations
Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Line Items]
Debt securities, carrying value	366	0
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Debt securities, cost	366	0
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Debt securities, unrealized gain	0	0
Debt securities, unrealized (loss)	0	0
Long-term Investments
Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Line Items]
Equity and other securities, carrying value	610	114
Carrying Value	4,285	114
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Equity and other securities, cost	602	114
Cost	4,289	114
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Equity and other securities, unrealized gain	8	0
Equity and other securities, unrealized (loss)	0	0
Unrealized Gain	8	0
Unrealized (Loss)	(12)	0
Long-term Investments \| U.S. government and agencies
Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Line Items]
Debt securities, carrying value	813	0
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Debt securities, cost	815	0
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Debt securities, unrealized gain	0	0
Debt securities, unrealized (loss)	(2)	0
Long-term Investments \| U.S. corporate debt securities
Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Line Items]
Debt securities, carrying value	1,396	0
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Debt securities, cost	1,401	0
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Debt securities, unrealized gain	0	0
Debt securities, unrealized (loss)	(5)	0
Long-term Investments \| Foreign debt securities
Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Line Items]
Debt securities, carrying value	1,446	0
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Debt securities, cost	1,451	0
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Debt securities, unrealized gain	0	0
Debt securities, unrealized (loss)	(5)	0
Long-term Investments \| Municipal obligations
Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Line Items]
Debt securities, carrying value	16	0
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Debt securities, cost	16	0
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Debt securities, unrealized gain	0	0
Debt securities, unrealized (loss)	0	0
Long-term Investments \| Asset-backed securities
Schedule of Available-for-sale Securities and Cost Method Investments [Table] [Line Items]
Debt securities, carrying value	4	0
Available-for-sale Securities, Amortized Cost Basis [Abstract]
Debt securities, cost	4	0
Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract]
Debt securities, unrealized gain	0	0
Debt securities, unrealized (loss)	$ 0	$ 0

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