Stockholders' Deficit - Schedule of Changes and Reclassifications Related to Other Comprehensive Loss, Net of Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Jan. 31, 2024	Jan. 31, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized gains (losses) arising during the period	$ (110)
Gains (losses) reclassified into earnings	(125)
Other comprehensive loss, net of taxes	(235)	$ (741)
Unrealized gains arising during the period
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized gains (losses) arising during the period	4	3
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 gains (losses) arising during the period	(126)	(517)
Gains (losses) reclassified into earnings	(127)	(256)
Other comprehensive loss, net of taxes	(253)	(773)
Losses arising during the period
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized gains (losses) arising during the period	(8)	(1)
Amortization of actuarial loss and prior service benefit
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gains (losses) reclassified into earnings	2	0
Curtailments, settlements and other
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Gains (losses) reclassified into earnings	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	(8)
Gains (losses) reclassified into earnings	2
Other comprehensive loss, net of taxes	(6)	0
Change in cumulative translation adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized gains (losses) arising during the period	20
Gains (losses) reclassified into earnings	0
Change in cumulative translation adjustment	$ 20	$ 29

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

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