Balance Sheet Detail (Tables)

9 Months Ended

Jul. 31, 2011

Balance Sheet Detail [Abstract]

Inventories

	July 31,		October 31,
	2011		2010
	(In millions)
Inventories
Customer service spares	$	328	$	324
Raw materials		408		260
Work-in-process		457		500
Finished goods		656		463
	$	1,849	$	1,547

Property, plant and equipment, net

			July 31,			October 31,
	Useful Life		2011			2010
	(In years)		(In millions)
Property, Plant and Equipment, Net
Land and improvements			$	169		$	227
Buildings and improvements		3-30		1,170			1,234
Demonstration and manufacturing equipment		3-5		679			670
Furniture, fixtures and other equipment		3-15		715			719
Construction in progress				24			19
Gross property, plant and equipment				2,757			2,869
Accumulated depreciation				(1,903	)		(1,906	)
			$	854		$	963

Accounts payable and accrued expenses

	July 31,		October 31,
	2011		2010
	(In millions)
Accounts Payable and Accrued Expenses
Accounts payable	$	656	$	658
Compensation and employee benefits		405		435
Warranty		188		155
Dividends payable		105		93
Other accrued taxes		76		99
Restructuring reserve		16		104
Interest payable		15		1
Other		192		221
	$	1,653	$	1,766

Customer deposits and deferred revenue

	July 31,		October 31,
	2011		2010
	(In millions)
Customer Deposits and Deferred Revenue
Customer deposits	$	442	$	407
Deferred revenue		905		440
	$	1,347	$	847