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Derivative Financial Instruments - Summary of Amounts Recorded in Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Sep. 30, 2021	Sep. 30, 2020
Interest Rate Swap
Derivatives, Fair Value [Line Items]
Foreign exchange derivative contracts in liability	$ 22	$ 38
Other noncurrent assets
Derivatives, Fair Value [Line Items]
Other noncurrent assets	0	0
Other noncurrent liabilities
Derivatives, Fair Value [Line Items]
Other noncurrent liabilities	$ (22)	$ (38)

X

- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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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.

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- Definition

Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

+ References

No definition available.

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- Definition

Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

+ References

No definition available.

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