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Consolidated Condensed Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,228	$ 764	$ 2,296	$ 1,442
Change in unrealized components of available-for-sale debt securities:
Unrealized (losses) gains arising during the period	0	(2)	4	(1)
Change in unrealized components of cash flow hedges:
Unrealized (losses) gains arising during the period	(21)	231	(387)	291
Losses (gains) reclassified into earnings	149	(53)	198	(112)
Change in unrealized components of cash flow hedges	128	178	(189)	179
Change in unrealized components of defined benefit plans:
Gains (losses) arising during the period	42	(1)	41	(1)
Amortization of actuarial loss and prior service benefit	21	21	42	41
Curtailments, settlements and other	0	1	1	1
Change in unrealized components of defined benefit plans	63	21	84	41
Change in cumulative translation adjustment	3	(17)	33	(11)
Other comprehensive income (loss) before taxes	194	180	(68)	208
Provision for taxes	(41)	(22)	(9)	(33)
Other comprehensive income (loss), net of taxes	153	158	(77)	175
Comprehensive income	$ 1,381	$ 922	$ 2,219	$ 1,617

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