Debt - Schedule of Debt Maturities (Details) $ in Millions	Oct. 31, 2015 USD ($)
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	$ 1,110
Debt Instrument, Unamortized Discount	81
Long-term Debt	5,298
Long-term Debt, Maturities, Repayments of Principal in Year Two	1,032
Long-term Debt, Maturities, Repayments of Principal in Year Three	330
Long-term Debt, Maturities, Repayments of Principal in Year Four	458
Long-term Debt, Maturities, Repayments of Principal in Year Five	1,013
Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five	1,436
Long-term Debt, Gross	5,379
Manufacturing Operations [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	103
Debt Instrument, Unamortized Discount	81
Long-term Debt	3,198
Long-term Debt, Maturities, Repayments of Principal in Year Two	55
Long-term Debt, Maturities, Repayments of Principal in Year Three	245
Long-term Debt, Maturities, Repayments of Principal in Year Four	433
Long-term Debt, Maturities, Repayments of Principal in Year Five	1,008
Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five	1,435
Long-term Debt, Gross	3,279
Financial Services Operations [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	1,007
Debt Instrument, Unamortized Discount	0
Long-term Debt	2,100
Long-term Debt, Maturities, Repayments of Principal in Year Two	977
Long-term Debt, Maturities, Repayments of Principal in Year Three	85
Long-term Debt, Maturities, Repayments of Principal in Year Four	25
Long-term Debt, Maturities, Repayments of Principal in Year Five	5
Long-term Debt, Maturities, Repayments of Principal in Rolling after Year Five	1
Long-term Debt, Gross	$ 2,100