Balance Sheet Details (Details) (USD $)	12 Months Ended
	Oct. 31, 2013 Item	Oct. 31, 2012	Oct. 31, 2011
Accounts Receivable, Net
Accounts receivable, gross	$ 16,208,000,000	$ 16,871,000,000	$ 18,694,000,000
Less: Allowance for doubtful accounts
Balance at beginning of year	464,000,000	470,000,000	525,000,000
Increase in allowance from acquisitions			27,000,000
Provision for doubtful accounts	23,000,000	100,000,000	23,000,000
Deductions, net of recoveries	(155,000,000)	(106,000,000)	(105,000,000)
Balance at end of year	332,000,000	464,000,000	470,000,000
Accounts receivable, net	15,876,000,000	16,407,000,000	18,224,000,000
Number of cases providing partial recourse	1
Trade receivables sold	4,900,000,000	4,300,000,000
Non-recourse arrangements
Aggregate maximum program capacity	764,000,000	636,000,000
Aggregate available capacity	450,000,000	434,000,000
Aggregate utilized capacity	314,000,000	202,000,000
Partial-recourse arrangement
Maximum program capacity	631,000,000	876,000,000
Available capacity	177,000,000	413,000,000
Utilized capacity	454,000,000	463,000,000
Total arrangements
Aggregate maximum program capacity	1,395,000,000	1,512,000,000
Aggregate available capacity	627,000,000	847,000,000
Aggregate utilized capacity	768,000,000	665,000,000
Inventory
Finished goods	3,847,000,000	4,094,000,000
Purchased parts and fabricated assemblies	2,199,000,000	2,223,000,000
Inventory, net	6,046,000,000	6,317,000,000
Other Current Assets
Deferred tax assets - short-term	3,893,000,000	3,783,000,000
Value-added taxes receivable from various governments	2,425,000,000	3,298,000,000
Supplier and other receivables	2,579,000,000	2,549,000,000
Prepaid and other current assets	4,238,000,000	3,730,000,000
Other current assets, total	13,135,000,000	13,360,000,000
Long-Term Financing Receivables and Other Assets
Financing receivables, net	3,878,000,000	4,292,000,000
Deferred tax assets-long-term	1,346,000,000	1,581,000,000
Deferred costs-long-term	999,000,000	1,301,000,000
Other	3,333,000,000	3,419,000,000
Long-Term Financing Receivables and Other Assets, total	9,556,000,000	10,593,000,000
Other Accrued Liabilities
Other accrued taxes	2,703,000,000	3,264,000,000
Warranty	1,390,000,000	1,496,000,000
Sales and marketing programs	2,823,000,000	2,900,000,000
Other	5,590,000,000	5,840,000,000
Other Accrued Liabilities, total	12,506,000,000	13,500,000,000
Other Liabilities
Pension, post-retirement, and post-employment liabilities	5,098,000,000	7,780,000,000
Deferred tax liability - long-term	2,668,000,000	2,948,000,000
Long-term deferred revenue	3,907,000,000	3,371,000,000
Other long-term liabilities	4,218,000,000	3,381,000,000
Other Liabilities, total	$ 15,891,000,000	$ 17,480,000,000