Derivative Instruments - Fair Value (Details) - USD ($) $ in Millions	Jul. 31, 2016	Oct. 31, 2015	Jul. 31, 2015
Fair Value of Derivative Instruments
Total derivative assets	$ 488.0	$ 348.1	$ 335.8
Total derivative liabilities	43.0	47.9	64.1
Designated as hedges | Interest rate contracts | Receivables from John Deere
Fair Value of Derivative Instruments
Total derivative assets	362.9	207.2	173.6
Designated as hedges | Interest rate contracts | Other assets
Fair Value of Derivative Instruments
Total derivative assets	71.4	80.9	97.7
Designated as hedges | Interest rate contracts | Other payables to John Deere
Fair Value of Derivative Instruments
Total derivative liabilities	4.3	7.1	19.4
Not Designated as Hedging Instruments | Receivables from John Deere
Fair Value of Derivative Instruments
Total derivative assets	44.4	45.9	51.5
Not Designated as Hedging Instruments | Other assets
Fair Value of Derivative Instruments
Total derivative assets	9.3	14.1	13.0
Not Designated as Hedging Instruments | Other payables to John Deere
Fair Value of Derivative Instruments
Total derivative liabilities	15.0	15.4	19.0
Not Designated as Hedging Instruments | Accounts payable and accrued expenses
Fair Value of Derivative Instruments
Total derivative liabilities	23.7	25.4	25.7
Not Designated as Hedging Instruments | Interest rate contracts | Receivables from John Deere
Fair Value of Derivative Instruments
Total derivative assets	32.6	34.4	38.8
Not Designated as Hedging Instruments | Interest rate contracts | Other assets
Fair Value of Derivative Instruments
Total derivative assets	0.6	2.8	4.8
Not Designated as Hedging Instruments | Interest rate contracts | Other payables to John Deere
Fair Value of Derivative Instruments
Total derivative liabilities	15.0	15.3	19.0
Not Designated as Hedging Instruments | Interest rate contracts | Accounts payable and accrued expenses
Fair Value of Derivative Instruments
Total derivative liabilities	18.4	19.8	23.1
Not Designated as Hedging Instruments | Foreign exchange contracts | Other assets
Fair Value of Derivative Instruments
Total derivative assets	8.7	11.3	8.2
Not Designated as Hedging Instruments | Foreign exchange contracts | Accounts payable and accrued expenses
Fair Value of Derivative Instruments
Total derivative liabilities	5.3	5.6	2.6
Not Designated as Hedging Instruments | Cross-currency interest rate contracts | Receivables from John Deere
Fair Value of Derivative Instruments
Total derivative assets	$ 11.8	11.5	$ 12.7
Not Designated as Hedging Instruments | Cross-currency interest rate contracts | Other payables to John Deere
Fair Value of Derivative Instruments
Total derivative liabilities		$ 0.1