Stockholders' Deficit - Tax Effects Related to Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Components of accumulated other comprehensive income, net of taxes
Tax (provision) benefit on other comprehensive income (loss)	$ (22)	$ (90)	$ 170	$ (116)
Tax benefit (provision) on unrealized (losses) 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	(1)	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	20	(114)	126	(146)
Tax effects on reclassification into earnings	(41)	24	37	36
Tax (provision) benefit on other comprehensive income (loss)	(21)	(90)	163	(110)
Tax (provision) benefit on gains (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	(1)	0	8	(6)
Tax benefit on amortization of actuarial loss and prior service benefit
Components of accumulated other comprehensive income, net of taxes
Tax effects on reclassification into earnings	0	(1)	0	(2)
Tax provision on curtailments, settlements and other
Components of accumulated other comprehensive income, net of taxes
Tax effects on reclassification into earnings	0	(1)	0	(1)
Unrealized components of defined benefit plans
Components of accumulated other comprehensive income, net of taxes
Tax (provision) benefit on other comprehensive income (loss)	(1)	(2)	8	(9)
Change in cumulative translation adjustment
Components of accumulated other comprehensive income, net of taxes
Tax (provision) benefit on other comprehensive income (loss)	$ 0	$ 1	$ 0	$ 2