Fair Value Measurements - Assets and Liabilities - Recurring (Details) - USD ($) $ in Millions	Jan. 27, 2019	Oct. 28, 2018	Jan. 28, 2018
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Marketable securities	$ 4.0
Derivative assets	78.2	$ 81.7	$ 77.7
Derivative liabilities	239.3	343.9	287.9
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Total assets	82.2	81.7	77.7
Total liabilities	239.3	343.9	287.9
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Interest rate contracts | Receivables from John Deere
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Derivative assets	65.3	55.9	64.7
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Interest rate contracts | Other assets
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Derivative assets	0.2	0.4	9.5
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Interest rate contracts | Other payables to John Deere
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Derivative liabilities	225.0	342.4	245.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Foreign exchange contracts | Other assets
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Derivative assets	11.1	22.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Foreign exchange contracts | Accounts payable and accrued expenses
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Derivative liabilities	12.3	1.4	40.9
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Cross-currency interest rate contracts | Receivables from John Deere
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Derivative assets	1.6	3.4	3.5
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | Cross-currency interest rate contracts | Other payables to John Deere
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Derivative liabilities	2.0	$ 0.1	$ 2.0
Assets and Liabilities Measured at Fair Value on a Recurring Basis | Level 2 | International Debt Securities | Marketable Securities
Assets and Liabilities Measured at Fair Value on Recurring and Nonrecurring Basis
Marketable securities	$ 4.0