Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Oct. 31, 2015
Operating results of discontinued operations
(Loss) earnings from discontinued operations, net of taxes	$ (58)	$ 596
Major components of assets and liabilities included in distribution
Total current assets of discontinued operations			$ 30,592
Total non-current assets of discontinued operations			46,331
Total current liabilities of discontinued operations			21,521
Change in Stockholders' equity in connection with the Separation:
Net change in HP Stockholders' equity	(32,572)
Spinoff | Hewlett-Packard Enterprise
Operating results of discontinued operations
Net revenue		12,981
Costs and expenses	87	12,179
Interest and other, net		53
(Loss) earnings from discontinued operations before taxes	(87)	749
Benefit from (provision for) taxes	29	(153)
(Loss) earnings from discontinued operations, net of taxes	(58)	596
Significant non-cash items and capital expenditures
Depreciation and amortization		921
Purchases of property, plant and equipment		$ 613
Major components of assets and liabilities included in distribution
Cash and cash equivalents			9,849
Accounts receivable			8,538
Financing receivables			2,918
Inventory			2,197
Other current assets			7,090
Total current assets of discontinued operations			30,592
Property, plant and equipment			9,598
Goodwill			27,261
Long-term financing receivables and other non-current assets			9,472
Total non-current assets of discontinued operations			46,331
Notes payable and short-term borrowings			691
Accounts payable			5,762
Employee compensation and benefits			2,861
Taxes on earnings			587
Deferred revenue			5,148
Other accrued liabilities			6,472
Total current liabilities of discontinued operations			21,521
Long-term debt			15,103
Other non-current liabilities			7,346
Total liabilities of discontinued operations			$ 22,449
Net cash transferred	$ 526