Consolidated Condensed Statements of Earnings (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Income Statement [Abstract]
Net revenue	$ 11,892	$ 12,362	$ 35,726	$ 39,197
Costs and expenses:
Cost of revenue	9,720	10,036	29,019	31,624
Research and development	298	300	891	909
Selling, general and administrative	719	1,058	2,758	3,508
Restructuring and other charges	36	1	156	22
Amortization of intangible assets	2	24	16	76
Defined benefit plan settlement credits	0	(64)	0	(64)
Total costs and expenses	10,775	11,355	32,840	36,075
Earnings from continuing operations	1,117	1,007	2,886	3,122
Interest and other, net	(36)	(90)	(135)	(289)
Earnings from continuing operations before taxes	1,081	917	2,751	2,833
Provision for taxes	(238)	(217)	(598)	(630)
Net earnings from continuing operations	843	700	2,153	2,203
Net (loss) earnings from discontinued operations	(60)	154	(149)	1,028
Net earnings	$ 783	$ 854	$ 2,004	$ 3,231
Basic
Continuing operations (usd per share)	$ 0.49	$ 0.39	$ 1.24	$ 1.21
Discontinued operations (usd per share)	(0.03)	0.08	(0.08)	0.57
Total basic net earnings per share (usd per share)	0.46	0.47	1.16	1.78
Diluted
Continuing operations (usd per share)	0.49	0.39	1.23	1.20
Discontinued operations (usd per share)	(0.04)	0.08	(0.08)	0.55
Total diluted net earnings per share (usd per share)	0.45	0.47	1.15	1.75
Cash dividends declared per share (usd per share)	$ 0.25	$ 0.35	$ 0.50	$ 0.67
Weighted-average shares used to compute net earnings per share:
Basic (shares)	1,711	1,805	1,735	1,817
Diluted (shares)	1,725	1,828	1,747	1,842