Gain (Loss) From Termination Of Purchase And Option Agreement

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- Definition

Investments In And Advances To Affiliates, Subsidiaries, Associates, And Joint Ventures, Contract Termination Aggregate Exercise Price

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- Definition

Investments In And Advances To Affiliates, Subsidiaries, Associates, And Joint Ventures, Distribution Rights, Term

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- Definition

Investments In And Advances To Affiliates, Subsidiaries, Associates, And Joint Ventures, Option To Terminate Distribution Rights, Term

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Investments in Non-Consolidated Joint Ventures (Details) - USD ($) $ in Millions		3 Months Ended			6 Months Ended
	Mar. 13, 2020	Mar. 31, 2020	Mar. 31, 2019	Sep. 30, 2017	Mar. 31, 2020	Mar. 31, 2019
Schedule of Equity Method Investments [Line Items]
Income from WABCO distribution termination	$ 265	$ 265	$ 0		$ 265	$ 0
WABCO \| Meritor WABCO JV
Schedule of Equity Method Investments [Line Items]
Distribution rights, term				10 years
Option to terminate distribution rights, term				3 years 6 months
WABCO \| Meritor WABCO JV \| Minimum
Schedule of Equity Method Investments [Line Items]
Exercise price for termination of distribution rights				$ 225
WABCO \| Meritor WABCO JV \| Maximum
Schedule of Equity Method Investments [Line Items]
Exercise price for termination of distribution rights				$ 265