Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Statement of Comprehensive Income [Abstract]
Net earnings	$ 3,263	$ 3,132	$ 6,541
Change in unrealized components of available-for-sale debt securities:
Unrealized gains (losses) arising during the period	2	(11)	5
Change in unrealized components of cash flow hedges:
Unrealized (losses) gains arising during the period	(427)	1,541	(132)
(Gains) losses reclassified into earnings	(84)	(779)	243
Change in unrealized components of cash flow hedges total	(511)	762	111
Change in unrealized components of defined benefit plans:
(Losses) gains arising during the period	(141)	(54)	1,029
Amortization of actuarial loss and prior service benefit	0	20	80
Curtailments, settlements and other	0	0	(36)
Change in unrealized components of defined benefit plans total	(141)	(34)	1,073
Change in cumulative translation adjustment	23	(78)	28
Other comprehensive (loss) income before taxes	(627)	639	1,217
Benefit (provision for) from taxes	119	(109)	(219)
Other comprehensive (loss) income, net of taxes	(508)	530	998
Comprehensive income	$ 2,755	$ 3,662	$ 7,539