Consolidated Condensed Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Statement of Comprehensive Income [Abstract]
Net earnings	$ 783	$ 854	$ 2,004	$ 3,231
Change in unrealized gains (losses) on available-for-sale securities:
Unrealized gains (losses) arising during the period	1	4	2	(9)
Change in unrealized components of cash flow hedges:
Unrealized gains arising during the period	175	292	135	905
Losses (gains) reclassified into earnings	159	(159)	63	(1,049)
Change in unrealized components of cash flow hedges	334	133	198	(144)
Change in unrealized components of defined benefit plans:
Losses arising during the period	0	(75)	(4)	(75)
Amortization of actuarial loss and prior service benefit	12	108	36	324
Settlements and other	0	97	1	99
Change in unrealized components of defined benefit plans	12	130	33	348
Change in cumulative translation adjustment	0	(44)	0	(112)
Other comprehensive income before taxes	347	223	233	83
(Provision for) benefit from taxes	(28)	(69)	41	(50)
Other comprehensive income, net of taxes	319	154	274	33
Comprehensive income	$ 1,102	$ 1,008	$ 2,278	$ 3,264