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STOCKHOLDERS' EQUITY (Stock Repurchase Program) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018	May 29, 2019
Equity [Abstract]
Stock Repurchase Program, Authorized Amount			$ 350	$ 500
Treasury Stock, Shares, Acquired	4,274,366	2,093,570	2,075,460
Treasury Stock, Value, Acquired, Cost Method	$ (410)	$ (160)	$ (120)

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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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