Contingencies - Asbestos related reserves and recoveries (Details) - USD ($) $ in Millions	Jun. 30, 2018	Sep. 30, 2017
Loss Contingencies [Line Items]
Asbestos-related liabilities	$ 17	$ 9
Maremont Asbestos
Loss Contingencies [Line Items]
Pending and future claims	68	68
Billed but unpaid claims	2	2
Asbestos-related liabilities	70	70
Asbestos-related insurance recoveries	18	25
Rockwell Asbestos
Loss Contingencies [Line Items]
Pending and future claims	63	63
Billed but unpaid claims	2	2
Asbestos-related liabilities	65	65
Asbestos-related insurance recoveries	$ 36	$ 38

Accrual For Environmental Loss Contingencies, Billed But Unpaid Claims

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- Definition

Accrual For Environmental Loss Contingencies, Pending And Future Claims

+ References

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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-Name Accounting Standards Codification
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Carrying amount as of the balance sheet date of amounts expected to be recovered under the terms of insurance contracts.

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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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