Taxes on Earnings - Schedule of Significant Components of Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Millions	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Deferred Tax Assets
Loss and credit carryforwards	$ 8,725	$ 7,395
Unremitted earnings of foreign subsidiaries	0	0
Inventory valuation	0	5
Intercompany transactions—profit in inventory	0	7
Intercompany transactions—excluding inventory	2,560	2,069
Fixed assets	274	692
Warranty	248	386
Employee and retiree benefits	592	1,728
Accounts receivable allowance	117	100
Intangible assets	23	0
Restructuring and other	17	19
Deferred revenue	206	201
Other	399	500
Gross deferred tax assets	13,161	13,102
Valuation allowances	(8,520)	(7,114)	$ (8,231)	$ (8,196)
Net deferred tax assets	4,641	5,988
Deferred Tax Liabilities
Loss and credit carryforwards	0	(14)
Unremitted earnings of foreign subsidiaries	(5,179)	(5,112)
Inventory valuation	(12)	0
Intercompany transactions—profit in inventory	0	(110)
Intercompany transactions—excluding inventory	0	0
Fixed assets	0	(420)
Warranty	0	(6)
Employee and retiree benefits	0	(689)
Accounts receivable allowance	0	0
Intangible assets	(213)	(126)
Restructuring and other	0	0
Deferred revenue	0	(2)
Other	(99)	(116)
Gross deferred tax liabilities	$ (5,503)	$ (6,595)