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INVESTMENTS (Tables)

12 Months Ended

Oct. 31, 2015

Investments, Debt and Equity Securities [Abstract]

The following table summarizes the company's equity investments as of October 31, 2015 and 2014 (net book value):



	October 31,
	2015		2014
	(in millions)
Long-Term
Cost method investments	$	17	$	15
Trading securities	12		13
Available-for-sale investments	41		35
Total	$	70	$	63

Available-for-sale Securities

Investments in available-for-sale securities at estimated fair value were as follows:



	October 31, 2015								October 31, 2014
	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
	(in millions)
Equity securities	$	15	$	26	$	—	$	41	$	15	$	20	$	—	$	35

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

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