Balance Sheet Details (Details) (USD $)	3 Months Ended		6 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013	Oct. 31, 2013
Accounts Receivable, Net
Accounts receivable	$ 14,541,000,000		$ 14,541,000,000		$ 16,208,000,000
Allowance for doubtful accounts	(253,000,000)		(253,000,000)
Accounts receivable, net	14,288,000,000		14,288,000,000		15,876,000,000
Allowance for doubtful accounts - accounts receivable:
Balance at beginning of period			332,000,000
Provision for doubtful accounts			(4,000,000)
Deductions, net of recoveries			(75,000,000)
Balance at end of period	253,000,000		253,000,000
Additional maximum arrangement capacity	1,600,000,000		1,600,000,000
Transferred trade receivables not collected from the third parties	468,000,000		468,000,000		171,000,000
Trade receivables sold and cash received
Trade receivables sold	2,639,000,000	1,176,000,000	3,951,000,000	2,653,000,000
Cash receipts	2,295,000,000	1,038,000,000	3,653,000,000	2,515,000,000
Non-recourse arrangements
Maximum program capacity	1,115,000,000		1,115,000,000		764,000,000
Utilized capacity	(559,000,000)		(559,000,000)		(314,000,000)
Available capacity	556,000,000		556,000,000		450,000,000
Partial-recourse arrangement
Maximum program capacity	1,914,000,000		1,914,000,000		631,000,000
Utilized capacity	(1,470,000,000)		(1,470,000,000)		(454,000,000)
Available capacity	444,000,000		444,000,000		177,000,000
Total arrangements
Maximum program capacity	3,029,000,000		3,029,000,000		1,395,000,000
Utilized capacity	(2,029,000,000)		(2,029,000,000)		(768,000,000)
Available capacity	1,000,000,000		1,000,000,000		627,000,000
Inventory
Finished goods	3,728,000,000		3,728,000,000		3,847,000,000
Purchased parts and fabricated assemblies	2,112,000,000		2,112,000,000		2,199,000,000
Inventory, net	5,840,000,000		5,840,000,000		6,046,000,000
Other Liabilities
Pension, post-retirement, and post-employment liabilities	4,979,000,000		4,979,000,000		5,098,000,000
Long-term deferred revenue	3,835,000,000		3,835,000,000		3,907,000,000
Deferred tax liability - long-term	1,481,000,000		1,481,000,000		2,668,000,000
Other long-term liabilities	4,625,000,000		4,625,000,000		4,218,000,000
Other Liabilities, total	$ 14,920,000,000		$ 14,920,000,000		$ 15,891,000,000