Income Taxes (Schedule Of Reconciliations Of The U.S. Federal Statutory Tax Rate) (Details)	12 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. Federal statutory rate	21.00%	21.00%	21.00%
State and local taxes, net of federal tax benefit	0.80%	0.70%	0.60%
Non-U.S. rate differential	1.60%	2.00%	1.70%
Non-U.S. tax holidays	(0.90%)	(0.80%)	(1.10%)
Research and development tax credits	(0.30%)	(0.60%)	(1.80%)
Foreign derived intangible income	(1.40%)	(1.40%)	(1.20%)
Gain on divestiture	(1.10%)	0.00%	0.00%
Russia business exit	1.20%	0.00%	0.00%
Non-U.S. subsidiary restructuring	(0.30%)	(0.50%)	(4.40%)
Other	0.30%	(0.30%)	0.00%
Effective income tax rate	20.90%	20.10%	14.80%

Effective Income Tax Rate Reconciliation, Disposition of Business_Russia, Percent

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Foreign derived intangible income

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to disposition of a business not qualifying as a discontinued operation.

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-SubTopic 10
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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income exempt from income tax because of a tax holiday.

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