0000051253 2026-05-28 2026-05-28 0000051253 iff:A1.800SeniorNotesDue2026Member 2026-05-28 2026-05-28 0000051253 dei:OtherAddressMember 2026-05-28 2026-05-28 0000051253 us-gaap:CommonStockMember 2026-05-28 2026-05-28 INTERNATIONAL FLAVORS & FRAGRANCES INC 0000051253 false 8-K 2026-05-28 NY 1-4858 13-1432060 521 West 57th Street New York NY 10019 200 Powder Mill Road Wilmington DE 19803 212 765-5500 false false false false Common Stock, par value 12 1/2 cents per share IFF NYSE 1.800% Senior Notes due 2026 IFF 26 NYSE false