Taxes on Earnings - Schedule of Significant Components of Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Millions	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Deferred tax assets:
Loss and credit carryforwards	$ 7,857	$ 7,856
Intercompany transactions—excluding inventory	509	714
Fixed assets	120	115
Warranty	203	195
Employee and retiree benefits	411	396
Deferred revenue	134	135
Capitalized research and development	203	193
Intangible assets	467	420
Operating lease liabilities	218
Investment in partnership	108	14
Other	531	542
Gross deferred tax assets	10,761	10,580
Valuation allowances	(7,976)	(7,930)	$ (7,906)	$ (8,807)
Total deferred tax assets	2,785	2,650
Deferred tax liabilities:
Unremitted earnings of foreign subsidiaries	(60)	(27)
Right-of-use assets from operating leases	(203)	0
Other	(32)	(63)
Total deferred tax liabilities	(295)	(90)
Total	$ 2,490	$ 2,560