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Financial Instruments, Derivatives and Hedging Activities - Commodity price hedging (Details) bu in Millions, MMBTU in Millions | 12 Months Ended
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Dec. 31, 2020 MMBTU bu
Commodity Contracts | Minimum |
Financial instruments, derivatives and hedging activities |
Maturity period of price risk derivative | 12 months
Commodity Contracts | Maximum |
Financial instruments, derivatives and hedging activities |
Maturity period of price risk derivative | 24 months
Corn Commodity |
Financial instruments, derivatives and hedging activities |
Futures contract (in bushels for corn and gallons for ethanol) | bu | 95
Natural Gas Commodity |
Financial instruments, derivatives and hedging activities |
Natural gas futures contract (in mmbtu) | MMBTU | 33

X
- Definition Nominal energy measure used to calculate payments on a derivative instrument as reporting date. + References No definition available. + Details
Name: | ingr_DerivativeNonmonetaryNotionalAmountEnergyMeasure1
Namespace Prefix: | ingr_
Data Type: | num:energyItemType
Balance Type: | na
Period Type: | instant

X
- Definition Nominal volume used to calculate payments on a derivative instrument as of the reporting date. + References No definition available. + Details
Name: | ingr_DerivativeNonmonetaryNotionalAmountVolume1
Namespace Prefix: | ingr_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition General period of time over which entity hedges its exposure to commodity price risk. + References No definition available. + Details
Name: | ingr_LengthOfTimeHedgedInPriceRiskCashFlowHedge
Namespace Prefix: | ingr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CommodityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ingr_CornCommodityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=ingr_NaturalGasCommodityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |