Stockholders’ Deficit - Taxes Related to Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax (provision) benefit on other comprehensive income (loss)	$ (109)	$ (219)	$ 1
Net unrealized gains on available-for-sale securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax (provision) benefit on unrealized gains (losses) arising during the period	2	(1)	0
Tax effect on change in unrealized components of cash flow hedges:
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax (provision) benefit on unrealized gains (losses) arising during the period	(328)	(9)	20
Tax benefit (provision) on reclassifications during the period	195	(17)	28
Tax (provision) benefit on other comprehensive income (loss)	(133)	(26)	48
Tax benefit (provision) on (losses) gains arising during the period
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax (provision) benefit on unrealized gains (losses) arising during the period	26	(183)	11
Tax benefit on amortization of actuarial loss and prior service benefit
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax benefit (provision) on reclassifications during the period	(6)	(17)	(19)
Tax (provision) benefit on curtailments, settlements and other
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax benefit (provision) on reclassifications during the period	(1)	9	(41)
Tax effect on change in unrealized components of defined benefit plans:
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax (provision) benefit on other comprehensive income (loss)	19	(191)	(49)
Tax effect on change in cumulative translation adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax (provision) benefit on other comprehensive income (loss)	$ 3	$ (1)	$ 2