Condensed Consolidated Statements of Earnings (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Net revenue:
Financing income	$ 115		$ 228
Financing income		$ 116		$ 228
Total net revenue	6,009	7,150	12,958	14,703
Costs and expenses:
Financing interest	71	75	144	148
Research and development	450	457	935	923
Selling, general and administrative	1,109	1,214	2,327	2,425
Amortization of intangible assets	84	69	204	141
Impairment of goodwill	865	0	865	0
Transformation costs	200	54	289	132
Disaster charges (recovery)	22	(7)	22	(7)
Acquisition, disposition and other related charges	18	84	40	147
Total costs and expenses	6,843	6,716	13,444	13,813
(Loss) earnings from operations	(834)	434	(486)	890
Interest and other, net	(68)	(18)	(87)	(69)
Tax indemnification adjustments	(35)	4	(56)	223
Non-service net periodic benefit credit	36	17	73	33
(Loss) earnings from equity interests	(10)	3	23	18
(Loss) earnings before taxes	(911)	440	(533)	1,095
Benefit (provision) for taxes	90	(21)	45	(499)
Net (loss) earnings	$ (821)	$ 419	$ (488)	$ 596
Net (loss) earnings per share:
Basic (in dollars per share)	$ (0.64)	$ 0.31	$ (0.38)	$ 0.43
Diluted (in dollars per share)	$ (0.64)	$ 0.30	$ (0.38)	$ 0.43
Weighted-average shares used to compute net (loss) earnings per share:
Basic (in shares)	1,291	1,367	1,295	1,384
Diluted (in shares)	1,291	1,382	1,295	1,397
Products
Net revenue:
Total net revenue	$ 3,320	$ 4,410	$ 7,567	$ 9,201
Costs and expenses:
Cost of products and services	2,378	3,058	5,288	6,427
Services
Net revenue:
Total net revenue	2,574	2,624	5,163	5,274
Costs and expenses:
Cost of products and services	$ 1,646	$ 1,712	$ 3,330	$ 3,477