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.

No definition available.

+ Details

Name:	us-gaap_DerivativeInstrumentsGainLossLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount before tax and reclassification adjustments of other comprehensive income (loss).

+ References

+ Details

Name:	us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount before tax of reclassification adjustments of other comprehensive income (loss).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 17B
-URI http://asc.fasb.org/extlink&oid=118930883&loc=SL34724394-108580

+ Details

Name:	us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=ingr_RevenueFromContractWithCustomerBeforeShippingAndHandlingCostsNetNetOfCostOfSalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=ingr_FinancingCostsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Financial Instruments, Derivatives and Hedging Activities - Additional information - CF hedges (Details) - Cash Flow Hedging - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Hedging relationships
Amount of Gains (Losses) Recognized in OCI	$ (17)	$ (2)	$ (16)	$ (1)
Gain (loss) reclassified from accumulated OCI into earnings	3	(2)	(3)	(5)
Commodity Contracts
Hedging relationships
Amount of Gains (Losses) Recognized in OCI	(20)	(5)	(20)	(2)
Commodity Contracts \| Cost of sales
Hedging relationships
Gain (loss) reclassified from accumulated OCI into earnings	2	(2)	(1)	(5)
Foreign Currency Contracts
Hedging relationships
Amount of Gains (Losses) Recognized in OCI	3	$ 3	4	1
Foreign Currency Contracts \| Cost of sales
Hedging relationships
Gain (loss) reclassified from accumulated OCI into earnings			1	(1)
Foreign Currency Contracts \| Net sales/Cost of sales
Hedging relationships
Gain (loss) reclassified from accumulated OCI into earnings	$ 1		(1)	1
Interest Rate Contracts \| Financing costs, net
Hedging relationships
Gain (loss) reclassified from accumulated OCI into earnings			$ (1)	$ (1)