Balance Sheet Details (Details) (USD $)	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Oct. 31, 2012
Accounts receivable
Accounts receivable, gross	$ 14,676,000,000		$ 16,871,000,000
Allowance for doubtful accounts	(440,000,000)		(464,000,000)
Accounts receivable, net	14,236,000,000		16,407,000,000
Maximum program capacity under partial recourse facility	928,000,000
Available capacity under partial recourse facility	456,000,000
Maximum program capacity under non-recourse facility	765,000,000
Available capacity under non-recourse facility	385,000,000
Trade receivables sold	1,500,000,000	1,100,000,000
Available capacity, program for sale of trade receivables			847,000,000
Inventory
Finished goods	4,058,000,000		4,094,000,000
Purchased parts and fabricated assemblies	2,316,000,000		2,223,000,000
Inventory, net	$ 6,374,000,000		$ 6,317,000,000