Other Noncurrent Assets and Liabilities - Components of Other Noncurrent Assets in Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Sep. 30, 2022	Sep. 30, 2021
Other Assets, Noncurrent [Abstract]
Deferred compensation investments	$ 85	$ 92
Tax and tax indemnity receivables	2	9
Life insurance policies	73	63
Manufacturing catalyst supplies	25	28
Defined benefit plan assets	21	28
Equity and other unconsolidated investments	3	4
Land use rights	6	7
Environmental insurance receivables	17	13
Debt issuance costs	2	3
Other	20	20
Other noncurrent assets, Total	$ 254	$ 267

The legal right to use or benefit from the use of natural resources or access.

No definition available.

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- Definition

Tax indemnity receivable established as a result of an acquisition of divestiture.

+ References

No definition available.

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- Definition

Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

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- Definition

Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

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- Definition

Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans.

+ References

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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- Definition

Carrying amount as of the balance sheet date of amounts expected to be recovered under the terms of insurance contracts.

+ References

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- Definition

The carrying amount of capitalized costs of materials, supplies, and other assets, which are not included in inventory but used in production.

+ References

No definition available.

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- Definition

Amount of other miscellaneous assets.

+ References

No definition available.

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- Definition

Amount of noncurrent assets classified as other.

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