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STOCKHOLDERS' EQUITY (Stock Repurchase Program) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019	May 29, 2019
Condensed Balance Sheet Statements, Captions [Line Items]
Stock Repurchase Program, Authorized Amount					$ 500
Treasury Stock, Shares, Acquired			2,047,166	1,790,420
Treasury Stock, Value, Acquired, Cost Method	$ 0	$ 60	$ 195	$ 130

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Amount of stock repurchase plan authorized.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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