Stockholders’ Deficit - Changes and Reclassifications Related to Other Comprehensive Loss, Net of Taxes (Details) - USD ($) $ in Millions	12 Months Ended
Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized (losses) gains arising during the period	$ 1,101
(Gains) losses reclassified into earnings	(570)
Other comprehensive income (loss), net of taxes	530	$ 998	$ (18)
Net unrealized gains on available-for-sale securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized (losses) gains arising during the period	(9)	4	2
(Gains) losses reclassified into earnings	0
Net unrealized gains (losses) on cash flow hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized (losses) gains arising during the period	1,213	(141)	(181)
(Gains) losses reclassified into earnings	(584)	226	(57)
Other comprehensive income (loss), net of taxes	629	85	(238)
Gains (losses) arising during the period
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized (losses) gains arising during the period	(28)	846	(18)
Amortization of actuarial loss and prior service benefit
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Gains) losses reclassified into earnings	14	63	64
Curtailments, settlements and other
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Gains) losses reclassified into earnings	(1)	(27)	174
Unrealized components of defined benefit plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized (losses) gains arising during the period	(28)
(Gains) losses reclassified into earnings	14
Other comprehensive income (loss), net of taxes	(15)	882	220
Change in cumulative translation adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized (losses) gains arising during the period	(75)
(Gains) losses reclassified into earnings	0
Change in cumulative translation adjustment	$ (75)	$ 27	$ (2)

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

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