| Document and Entity Information | Aug. 19, 2019 |
| Cover [Abstract] | |
| Entity Registrant Name | Ingredion Inc |
| Amendment Flag | true |
| Amendment Description | Amendment 1 |
| Entity Central Index Key | 0001046257 |
| Document Type | 8-K/A |
| Document Period End Date | Aug. 19, 2019 |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 1-13397 |
| Entity Tax Identification Number | 22-3514823 |
| Entity Address, Address Line One | 5 Westbrook Corporate Center |
| Entity Address, City or Town | Westchester |
| Entity Address, State or Province | IL |
| Entity Address, Postal Zip Code | 60154-5749 |
| City Area Code | 708 |
| Local Phone Number | 551-2600 |
| Title of 12(b) Security | Common Stock, $.01 par value per share |
| Trading Symbol | INGR |
| Security Exchange Name | NYSE |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
