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Restructuring - Narrative (Details) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2023 USD ($) employee	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 41	$ 0	$ 41	$ 0
Employee Severance
Restructuring Cost and Reserve [Line Items]
Expected number of positions to eliminated | employee	270
Expected number of positions to eliminated as a percentage	4.00%
Expected restructuring and related cost	$ 41	41		41
Restructuring charges		$ 41		$ 41

X

- Definition

Amount expected to be recognized in earnings for the specified restructuring cost.

+ References

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The expected number of positions to be eliminated as a result of restructuring activities.

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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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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