STOCKHOLDERS' EQUITY - Reclassifications out of accumulated comprehensive income (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2022	Jan. 31, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives
Unrealized gain (loss) on derivatives	$ 3	$ (8)
Amounts reclassified into earnings related to derivative instruments, tax	(1)	2
Unrealized gain (loss) on derivatives after reclassification and after Tax	2	(6)
Actuarial net loss	(6)	(16)
Prior service benefit	0	0
Actuarial net loss and prior service benefit reclassified, before tax	(6)	(16)
Tax on actuarial net loss and prior service benefit reclassified	1	4
Actuarial net loss and prior service benefit reclassified, net of tax	(5)	(12)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(3)	(18)
Cost of Products and Services
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives
Unrealized gain (loss) on derivatives	$ 3	$ (8)