Borrowings (Details 3) (USD $)	12 Months Ended						12 Months Ended			12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2013 Other, including capital lease obligations, at 0.00%-8.39%, due in calendar years 2014-2024	Oct. 31, 2012 Other, including capital lease obligations, at 0.00%-8.39%, due in calendar years 2014-2024	Oct. 31, 2013 Credit facilities	Oct. 31, 2013 Credit facility expiring March 2017	Sep. 30, 2012 Credit facility expiring March 2017 Euro	Sep. 30, 2012 Credit facility expiring March 2017 GBP	Oct. 31, 2013 Credit facility expired February 2015	Oct. 31, 2013 Commercial paper Item	Oct. 31, 2013 Commercial paper U.S. program	Sep. 30, 2012 Commercial paper Euro program	Oct. 31, 2013 Hewlett-Packard International Bank PLC Commercial paper Euro Commercial Paper/Certificate of Deposit Programme
Debt instruments
Number of commercial paper programs											2
Commercial paper authorization by HP								$ 2,200,000,000	$ 300,000,000		$ 16,000,000,000	$ 16,000,000,000	$ 3,000,000,000	$ 500,000,000
Amount of additional commercial paper authorization for subsidiaries											1,000,000,000
Amount available under credit facility						7,500,000,000	3,000,000,000			4,500,000,000
Term of credit facility							5 years			4 years
Borrowings collateralized by certain financing receivable assets				244,000,000	225,000,000
Available borrowing resources, other than 2012 Shelf Registration	17,800,000,000					1,600,000,000					16,200,000,000
Premium on debt issuance	14,000,000
Discount on debt issuance	16,000,000
Aggregate future maturities of debt outstanding including capital lease obligations
2014	5,195,000,000
2015	2,543,000,000
2016	3,013,000,000
2017	2,891,000,000
2018	842,000,000
Thereafter	7,205,000,000
Total	21,689,000,000
Interest expense on borrowings
Financing interest	312,000,000	317,000,000	306,000,000
Interest expense	426,000,000	514,000,000	216,000,000
Total interest expense	$ 738,000,000	$ 831,000,000	$ 522,000,000