Significant Accounting Policies	3 Months Ended
Dec. 31, 2023
Accounting Policies [Abstract]
Significant Accounting Policies	B. Significant Accounting Policies Full detail on the Company’s significant accounting policies may be obtained by referring to Note A in the 2023 10-K. Argentina Devaluation The Company’s wholly-owned Argentinian subsidiary operates in a highly inflationary economy and, as a result, the functional currency of the subsidiary is Cabot’s reporting currency, the U.S. dollar. During the three months ended December 31, 2023, the Company recorded foreign exchange losses of $40 million related to the revaluation of non-functional currency denominated monetary asset and liability balances, of which $33 million related to a single devaluation action by the newly elected Argentine government. The Company invests cash in money market funds and recorded investment income of $12 million for the three months ended December 31, 2023. The foreign exchange losses and investment gains are recorded in Other income (expense) in the Consolidated Statement of Operations. Recently Adopted Accounting Standards In November 2022, the FASB issued a new standard on the disclosure of supplier financing programs. The new standard requires qualitative and quantitative disclosures as to the nature and potential magnitude of such programs in addition to program activity and changes for the periods presented. The Company adopted this standard on October 1, 2023. See Note J for disclosures related to the Company's supplier financing programs. The adoption of this standard did not have a material impact on the Company's Consolidated Financial Statements. Recent Accounting Pronouncements In November 2023, the FASB issued a new standard, Improvement to Reportable Segment Disclosures. The new guidance enhances the disclosure of significant reportable segment expenses. The new standard is effective for fiscal years beginning after December 15, 2023, and early adoption is permitted. The Company is currently evaluating the timing of adoption and the impact of the adoption of this standard on the Company’s Consolidated Financial Statements. In December 2023, the FASB issued a new standard, Improvements to Income Tax Disclosures. The new guidance requires additional disclosures primarily related to the income tax rate reconciliation and income taxes paid. The new standard is effective for fiscal years beginning after December 15, 2024, and early adoption is permitted. The Company is currently evaluating the timing of adoption and the impact of the adoption of this standard on the Company’s Consolidated Financial Statements.

Significant Accounting Policies

3 Months Ended

Dec. 31, 2023

B. Significant Accounting Policies

Full detail on the Company’s significant accounting policies may be obtained by referring to Note A in the 2023 10-K.

Argentina Devaluation

The Company’s wholly-owned Argentinian subsidiary operates in a highly inflationary economy and, as a result, the functional currency of the subsidiary is Cabot’s reporting currency, the U.S. dollar. During the three months ended December 31, 2023, the Company recorded foreign exchange losses of $40 million related to the revaluation of non-functional currency denominated monetary asset and liability balances, of which $33 million related to a single devaluation action by the newly elected Argentine government. The Company invests cash in money market funds and recorded investment income of $12 million for the three months ended December 31, 2023. The foreign exchange losses and investment gains are recorded in Other income (expense) in the Consolidated Statement of Operations.

Recently Adopted Accounting Standards

In November 2022, the FASB issued a new standard on the disclosure of supplier financing programs. The new standard requires qualitative and quantitative disclosures as to the nature and potential magnitude of such programs in addition to program activity and changes for the periods presented. The Company adopted this standard on October 1, 2023. See Note J for disclosures related to the Company's supplier financing programs. The adoption of this standard did not have a material impact on the Company's Consolidated Financial Statements.

Recent Accounting Pronouncements

In November 2023, the FASB issued a new standard, Improvement to Reportable Segment Disclosures. The new guidance enhances the disclosure of significant reportable segment expenses. The new standard is effective for fiscal years beginning after December 15, 2023, and early adoption is permitted. The Company is currently evaluating the timing of adoption and the impact of the adoption of this standard on the Company’s Consolidated Financial Statements.

In December 2023, the FASB issued a new standard, Improvements to Income Tax Disclosures. The new guidance requires additional disclosures primarily related to the income tax rate reconciliation and income taxes paid. The new standard is effective for fiscal years beginning after December 15, 2024, and early adoption is permitted. The Company is currently evaluating the timing of adoption and the impact of the adoption of this standard on the Company’s Consolidated Financial Statements.