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Revenue from Contracts with Customers Narrative (Details)	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue by Recognition Timing	2.00%	1.00%	2.00%
Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Percent of Revenue by Recognition Timing	98.00%	99.00%	98.00%

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- Definition

Percent of Revenue by Recognition Timing

+ References

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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.

+ References

No definition available.

+ Details

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- Details

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X

- Details

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