Taxes on Earnings - Schedule of Significant Components of Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Millions	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Deferred Tax Assets
Loss and credit carryforwards	$ 7,856	$ 8,204
Intercompany transactions—excluding inventory	714	994
Fixed assets	115	151
Warranty	195	194
Employee and retiree benefits	396	401
Deferred Revenue	145	164
Capitalized research and development	193	0
Intangible assets	420	0
Other	556	422
Gross Deferred Tax Assets	10,590	10,530
Valuation allowances	(7,930)	(7,906)	$ (8,807)	$ (8,520)
Total Deferred Tax Assets	2,660	2,624
Deferred Tax Liabilities
Unremitted earnings of foreign subsidiaries	(27)	(31)
Intangible assets	0	(229)
Other	(73)	(33)
Total Deferred Tax Liabilities	(100)	(293)
Total	$ 2,560	$ 2,331