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Restructuring and Other Charges, Net - Additional Information (Detail) - IFF Productivity Program - USD ($) $ in Millions | 3 Months Ended | 18 Months Ended
--- | --- | ---
Mar. 31, 2026 | Mar. 31, 2025 | Mar. 31, 2026
Restructuring Cost and Reserve [Line Items] |  |  |
Share-based arrangement, accelerated cost | $ 1 |  |
Employee Severance |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring costs incurred | 6 | $ 17 | $ 85
Fixed Asset Write Down |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring costs incurred |  |  | 14
Minimum |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring costs expected | 110 |  | 110
Maximum |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring costs expected | $ 130 |  | $ 130

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