Balance Sheet Details (Details) (USD $)	3 Months Ended
	Jan. 31, 2014 item	Jan. 31, 2013	Oct. 31, 2013
Accounts Receivable, Net
Accounts receivable	$ 13,760,000,000		$ 16,208,000,000
Allowance for doubtful accounts	(268,000,000)
Accounts receivable, net	13,492,000,000		15,876,000,000
Allowance for doubtful accounts - accounts receivable:
Balance at beginning of period	332,000,000
Provision for doubtful accounts	(11,000,000)
Deductions, net of recoveries	(53,000,000)
Balance at end of period	268,000,000
Number of cases providing partial recourse	1
Trade receivables sold	1,500,000,000	1,500,000,000
Non-recourse arrangements
Aggregate maximum program capacity	759,000,000		764,000,000
Aggregate available capacity	451,000,000		450,000,000
Aggregate utilized capacity	308,000,000		314,000,000
Partial-recourse arrangement
Maximum program capacity	637,000,000		631,000,000
Available capacity	172,000,000		177,000,000
Utilized capacity	465,000,000		454,000,000
Total arrangements
Aggregate maximum program capacity	1,396,000,000		1,395,000,000
Aggregate available capacity	623,000,000		627,000,000
Aggregate utilized capacity	773,000,000		768,000,000
Inventory
Finished goods	3,757,000,000		3,847,000,000
Purchased parts and fabricated assemblies	2,247,000,000		2,199,000,000
Inventory, net	$ 6,004,000,000		$ 6,046,000,000