Balance Sheet Details (Detail 3) - USD ($) $ in Millions	Jul. 31, 2015	Oct. 31, 2014
Other Liabilities
Pension, post-retirement, and post-employment liabilities	$ 5,305	$ 6,379
Deferred revenue-long term	4,317	3,931
Deferred tax liability - long-term	2,965	1,124
Tax liability- long-term	1,618	2,861
Other long-term liabilities	1,884	2,010
Other Liabilities, total	$ 16,089	$ 16,305