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Revenue Recognition (Details) - USD ($) $ in Billions	9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
ASU 2014-09
Revenue Recognition
Passed through costs included in revenue and cost of sales	$ 5.6	$ 5.0

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- Definition

The costs of subcontracts for services and other direct costs incurred by the entity on behalf of its clients. These costs are passed through to clients and included in revenue and cost of revenue.

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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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