Borrowings (Details) (USD $) In Millions, unless otherwise specified	Apr. 30, 2015	Oct. 31, 2014	Jan. 31, 2015
Notes Payable and Short-Term Borrowings
Current portion of long-term debt	$ 1,930	$ 2,655
Amount outstanding	5,594us-gaap_DebtCurrent	3,486us-gaap_DebtCurrent
Current portion of long-term debt, weighted average interest rate (as a percent)	1.80%us-gaap_DebtWeightedAverageInterestRate	2.20%us-gaap_DebtWeightedAverageInterestRate
Commercial paper
Notes Payable and Short-Term Borrowings
Short term borrowings	3,104	298
Weighted average interest rate (as a percent)	0.50%	0.50%
Commercial paper \| HP Financial Services
Notes Payable and Short-Term Borrowings
Short term borrowings		298	289
Obligation related to notes payable to banks, lines of credit, uncommitted line of credit and other debt
Notes Payable and Short-Term Borrowings
Short term borrowings	560	533
Weighted average interest rate (as a percent)	3.60%	4.00%
Obligation related to notes payable to banks, lines of credit, uncommitted line of credit and other debt \| HP Financial Services
Notes Payable and Short-Term Borrowings
Short term borrowings		$ 404	$ 396

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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