Taxes on Earnings (Detail 5) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017
Deferred tax assets:
Loss and credit carry-forwards	$ 9,149	$ 4,775
Inventory valuation	77	79
Intercompany transactions—royalty prepayments	48	4,267
Intercompany transactions—excluding royalty prepayments	63	129
Warranty	81	156
Employee and retiree benefits	498	661
Restructuring	101	186
Deferred revenue	518	757
Intangible assets	48	0
Other	432	593
Total deferred tax assets	11,015	11,603
Valuation allowance	(8,209)	(2,789)
Total deferred tax assets net of valuation allowance	2,806	8,814
Deferred tax liabilities:
Unremitted earnings of foreign subsidiaries	(161)	(3,824)
Fixed assets	(470)	(385)
Intangible assets	0	(46)
Total deferred tax liabilities	(631)	(4,255)
Deferred tax assets net of deferred tax liabilities	2,175	$ 4,559
Reversal of deferred tax assets	2,100
Tax benefit related to reversal of deferred tax recognized	$ 3,700