Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2020
Statement of Comprehensive Income [Abstract]
Net earnings	$ 3,203	$ 6,503	$ 2,844
Change in unrealized components of available-for-sale debt securities:
Unrealized (losses) gains arising during the period	(11)	5	2
Change in unrealized components of cash flow hedges:
Unrealized gains (losses) arising during the period	1,541	(132)	(201)
(Gains) losses reclassified into earnings	(779)	243	(85)
Change in unrealized components of cash flow hedges	762	111	(286)
Change in unrealized components of defined benefit plans:
Gains (losses) arising during the period	4	1,008	(29)
Amortization of actuarial loss and prior service benefit	20	80	83
Curtailments, settlements and other	0	(36)	215
Change in unrealized components of defined benefit plans	24	1,052	269
Change in cumulative translation adjustment	(78)	28	(4)
Other comprehensive income (loss) before taxes	697	1,196	(19)
(Provision for) benefit from taxes	(124)	(213)	1
Other comprehensive income (loss), net of taxes	573	983	(18)
Comprehensive income	$ 3,776	$ 7,486	$ 2,826