Debt - Schedule of Debt Instruments (Details) - USD ($) $ in Millions	Jul. 31, 2018	Oct. 31, 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.75%
Long-term Debt	$ 0
Long-term Debt and Capital Lease Obligations	3,893	$ 3,889
Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount	2
Gross maximum borrowing capacity	394	0
Term Loan [Member]
Debt Instrument [Line Items]
Long-term Debt		1,003
Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt		1,423
Financial Services Operations
Debt Instrument [Line Items]
Long-term Debt and Capital Lease Obligations, Including Current Maturities	1,975	1,651
Long-term Debt and Capital Lease Obligations, Current	1,046	883
Long-term Debt and Capital Lease Obligations	929	768
Financial Services Operations \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt Issuance Costs, Net	3	5
Long-term Debt	888	849
Financial Services Operations \| Line of Credit [Member]
Debt Instrument [Line Items]
Debt Issuance Costs, Net	1	2
Long-term Debt	500	616
Financial Services Operations \| Commercial Paper [Member]
Debt Instrument [Line Items]
Long-term Debt		92
Commercial Paper	88
Financial Services Operations \| Borrowings Secured By Operating and Finance Leases [Member]
Debt Instrument [Line Items]
Long-term Debt	105	94
Manufacturing Operations [Member]
Debt Instrument [Line Items]
Long-term Debt and Capital Lease Obligations, Including Current Maturities	3,625	3,407
Long-term Debt and Capital Lease Obligations, Current	661	286
Long-term Debt and Capital Lease Obligations	2,964	3,121
Manufacturing Operations [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Debt Issuance Costs, Net	0	9
Debt Instrument, Unamortized Discount	0	7
Long-term Debt	1,573	0
Manufacturing Operations [Member] \| Notes Payable to Banks [Member] \| Eight Point Two Five Percent Senior Notes [Member]
Debt Instrument [Line Items]
Debt Issuance Costs, Net	0	14
Debt Instrument, Unamortized Discount	$ 0	13
Debt Instrument, Interest Rate, Stated Percentage	8.25%
Long-term Debt	$ 1,083	0
Manufacturing Operations [Member] \| Convertible Subordinated Debt [Member] \| Four Point Five Zero Senior Subordinated Convertible Notes [Member]
Debt Instrument [Line Items]
Debt Issuance Costs, Net	1	1
Debt Instrument, Unamortized Discount	$ 1	5
Debt Instrument, Interest Rate, Stated Percentage	4.50%
Long-term Debt	$ 199	194
Manufacturing Operations [Member] \| Convertible Subordinated Debt [Member] \| Four Point Seven Five Senior Subordinated Convertible Notes [Member] [Member]
Debt Instrument [Line Items]
Debt Issuance Costs, Net	2	3
Debt Instrument, Unamortized Discount	$ 7	14
Debt Instrument, Interest Rate, Stated Percentage	4.75%
Long-term Debt	$ 402	394
Manufacturing Operations [Member] \| Tax Exempt Bond [Member]
Debt Instrument [Line Items]
Debt Issuance Costs, Net	$ 5	5
Debt Instrument, Interest Rate, Stated Percentage	6.75%
Long-term Debt	$ 220	220
Manufacturing Operations [Member] \| Financed lease obligations [Member]
Debt Instrument [Line Items]
Long-term Debt	121	130
Manufacturing Operations [Member] \| Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Long-term Debt	27	$ 43
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 0

Net maximum borrowing capacity

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- Definition

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

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Amount of long-term debt and capital lease obligations including current maturities.

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