Taxes on Earnings (Details 6) (USD $)	Oct. 31, 2013	Oct. 31, 2012
Current and long-term deferred tax assets and deferred tax liabilities
Current deferred tax assets	$ 3,893,000,000	$ 3,783,000,000
Current deferred tax liabilities	(375,000,000)	(230,000,000)
Long-term deferred tax assets	1,346,000,000	1,581,000,000
Long-term deferred tax liabilities	(2,668,000,000)	(2,948,000,000)
Net deferred tax assets net of deferred tax liabilities	2,196,000,000	2,186,000,000
Federal
Operating loss carryforwards
Operating loss carryforwards	1,400,000,000	2,900,000,000
State
Operating loss carryforwards
Operating loss carryforwards	5,600,000,000	6,200,000,000
Foreign
Operating loss carryforwards
Operating loss carryforwards	$ 30,800,000,000	$ 25,700,000,000