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Commitments and Contingencies - Schedule of Components of Purchase Commitments (Detail) $ in Millions | Sep. 30, 2024 USD ($)
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Long-term Purchase Commitment [Line Items] |
Payments Due by Fiscal Year 2025 | $ 251
Payments Due by Fiscal Year 2026 | 210
Payments Due by Fiscal Year 2027 | 184
Payments Due by Fiscal Year 2028 | 132
Payments Due by Fiscal Year 2029 | 116
Payments Due Thereafter | 1,349
Payments Due, Total | 2,242
Reinforcement Materials [Member] |
Long-term Purchase Commitment [Line Items] |
Payments Due by Fiscal Year 2025 | 210
Payments Due by Fiscal Year 2026 | 174
Payments Due by Fiscal Year 2027 | 148
Payments Due by Fiscal Year 2028 | 111
Payments Due by Fiscal Year 2029 | 99
Payments Due Thereafter | 1,142
Payments Due, Total | 1,884
Performance Chemicals [Member] |
Long-term Purchase Commitment [Line Items] |
Payments Due by Fiscal Year 2025 | 41
Payments Due by Fiscal Year 2026 | 36
Payments Due by Fiscal Year 2027 | 36
Payments Due by Fiscal Year 2028 | 21
Payments Due by Fiscal Year 2029 | 17
Payments Due Thereafter | 207
Payments Due, Total | $ 358

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