Stockholders' Deficit - Schedule of Taxes Related to Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Components of accumulated other comprehensive income, net of taxes
Tax benefit on other comprehensive loss	$ 70	$ 183
Tax provision on unrealized gains arising during the period
Components of accumulated other comprehensive income, net of taxes
Tax benefit (provision) on unrealized (losses) gains arising during the period	0	(1)
Net unrealized gains (losses) on cash flow hedges
Components of accumulated other comprehensive income, net of taxes
Tax benefit (provision) on unrealized (losses) gains arising during the period	36	106
Tax effects on reclassification into earnings	32	78
Tax benefit on other comprehensive loss	68	184
Tax benefit on losses arising during the period
Components of accumulated other comprehensive income, net of taxes
Tax benefit (provision) on unrealized (losses) gains arising during the period	2	0
Unrealized components of defined benefit plans
Components of accumulated other comprehensive income, net of taxes
Tax benefit on other comprehensive loss	$ 2	$ 0