Derivative Instruments - Gains (Losses) on Statement of Consolidated Income (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Classification and gains (losses) including accrued interest expense related to derivative instruments
Not designated as hedges, gains (losses)	$ 49.6	$ 30.7	$ 31.9	$ 139.5
John Deere
Classification and gains (losses) including accrued interest expense related to derivative instruments
Gain (loss) on derivatives transactions with affiliate party	115.9	26.5	257.1	165.4
Interest rate contracts \| Interest expense
Classification and gains (losses) including accrued interest expense related to derivative instruments
Fair value hedges, gains (losses)	114.7	29.0	258.8	166.6
Not designated as hedges, gains (losses)	(2.7)	(3.2)	(3.3)	(6.6)
Interest rate contracts \| Interest expense \| Cash flow hedges
Classification and gains (losses) including accrued interest expense related to derivative instruments
Cash flow hedges, reclassified from OCI, effective portion, gains (losses)	(1.1)	(2.4)	(4.3)	(6.3)
Interest rate contracts \| OCI (pretax)
Classification and gains (losses) including accrued interest expense related to derivative instruments
Cash flow hedges, recognized in OCI, effective portion, gains (losses)	(1.1)	(3.5)	(2.8)	(7.4)
Foreign exchange contracts \| Administrative and operating expenses
Classification and gains (losses) including accrued interest expense related to derivative instruments
Not designated as hedges, gains (losses)	$ 52.3	$ 33.9	$ 35.2	$ 146.1

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (a),(c),(d),(e)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4D
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624177-113959

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period.

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Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective.

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