XML 49 R36.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Fair Value Measurements (Narrative) (Details) - Weighted Average [Member] - Fair Value, Measurements, Recurring [Member] - Significant Unobservable Inputs (Level 3) [Member] | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Inventory Related Payables [Member] |  |
Fair Value Measurements [Line Items] |  |
Basis | 60.80% | 99.90%
Inventories Carried At Market [Member] |  |
Fair Value Measurements [Line Items] |  |
Basis | 16.20% | 12.80%

X
- Definition Adjustment to current market value, based on location, that a market participant is willing to pay, used as an input to measure fair value. + References No definition available. + Details
Name: | adm_Basis
Namespace Prefix: | adm_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair Value Measurements [Line Items] + References No definition available. + Details
Name: | adm_FairValueMeasurementsLineItems
Namespace Prefix: | adm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_WeightedAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByLiabilityClassAxis=adm_InventoryRelatedPayablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=adm_InventoriesCarriedAtMarketMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |