Revenue - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Revenue - Narrative (Details) - USD ($) $ in Millions	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020	Oct. 31, 2020
Extended warranty contracts
Disaggregation of Revenue [Line Items]
Deferred revenue related to extended warranty contract	$ 229		$ 229		$ 245
Sales of manufactured products, net	$ 26	$ 26	$ 58	$ 51
Minimum
Disaggregation of Revenue [Line Items]
Warranty revenue related to extended warranty contracts term			1 year
Maximum
Disaggregation of Revenue [Line Items]
Warranty revenue related to extended warranty contracts term			10 years

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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+ Details

NAVISTAR INTERNATIONAL CORP 10-Q