FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Jan. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value Assets And Liabilities Measured On Recurring Basis

Financial assets and liabilities measured at fair value on a recurring basis as of January 31, 2018 were as follows:

			Fair Value Measurement at January 31, 2018 Using
	January 31, 2018		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in millions)
Assets:
Short-term
Cash equivalents (money market funds)	$	1,960	$	1,960	$	—	$	—
Derivative instruments (foreign exchange contracts)	9		—		9		—
Long-term
Trading securities	31		31		—		—
Total assets measured at fair value	$	2,000	$	1,991	$	9	$	—
Liabilities:
Short-term
Derivative instruments (foreign exchange contracts)	$	16	$	—	$	16	$	—
Long-term
Deferred compensation liability	31		—		31		—
Total liabilities measured at fair value	$	47	$	—	$	47	$	—

Financial assets and liabilities measured at fair value on a recurring basis as of October 31, 2017 were as follows:

			Fair Value Measurement at October 31, 2017 Using
	October 31, 2017		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(in millions)
Assets:
Short-term
Cash equivalents (money market funds)	$	1,659	$	1,659	$	—	$	—
Derivative instruments (foreign exchange contracts)	4		—		4		—
Long-term
Trading securities	32		32		—		—
Total assets measured at fair value	$	1,695	$	1,691	$	4	$	—
Liabilities:
Short-term
Derivative instruments (foreign exchange contracts)	$	6	$	—	$	6	$	—
Long-term
Deferred compensation liability	32		—		32		—
Total liabilities measured at fair value	$	38	$	—	$	38	$	—