Stockholders’ Deficit - Schedule of Changes and Reclassifications Related to Other Comprehensive (Loss) Income, Net of Taxes (Details) - USD ($) $ in Millions	12 Months Ended
Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized gains (losses) arising during the period	$ 1
Reclassification	(213)
Other comprehensive (loss) income, net of taxes	(211)	$ (508)	$ 530
Unrealized gains (losses) arising during the period
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized gains (losses) arising during the period	7	1	(9)
Reclassification	0
Net unrealized gains (losses) on cash flow hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized gains (losses) arising during the period	38	(352)	1,213
Reclassification	(221)	(66)	(584)
Other comprehensive (loss) income, net of taxes	(183)	(418)	629
Unrealized losses arising during the period
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized gains (losses) arising during the period	(68)	(115)	(28)
Amortization of actuarial loss and prior service benefit
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification	8	1	14
Curtailments, settlements and other
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification	1	0	(1)
Change in unrealized components of defined benefit plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized gains (losses) arising during the period	(68)
Reclassification	8
Other comprehensive (loss) income, net of taxes	(59)	(114)	(15)
Change in cumulative translation adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized gains (losses) arising during the period	24
Reclassification	0
Change in cumulative translation adjustment	$ 24	$ 23	$ (75)

Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent.

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