High end of the range of the entity's contracted commodity sales volumes hedged during the historical hedging period.

No definition available.

Name:	adm_CommodityHedgedDuringHistoricalHedgingPeriodHighEnd
Namespace Prefix:	adm_
Data Type:	num:volumeItemType
Balance Type:	na
Period Type:	duration

- Definition

Low end of the range of the entity's contracted commodity sales volumes hedged during the historical hedging period.

+ References

No definition available.

+ Details

Name:	adm_CommodityHedgedDuringHistoricalHedgingPeriodLowEnd
Namespace Prefix:	adm_
Data Type:	num:volumeItemType
Balance Type:	na
Period Type:	duration

- Definition

High end of the range of the contracted sales volume hedged by the company over the future hedging period.

+ References

No definition available.

+ Details

Name:	adm_ContractedCommodityHedgedOverFutureHedgingPeriodHighEnd
Namespace Prefix:	adm_
Data Type:	num:volumeItemType
Balance Type:	na
Period Type:	instant

- Definition

Low end of the range of the contracted sales volume hedged by the company over the future hedging period.

+ References

No definition available.

+ Details

Name:	adm_ContractedCommodityHedgedOverFutureHedgingPeriodLowEnd
Namespace Prefix:	adm_
Data Type:	num:volumeItemType
Balance Type:	na
Period Type:	instant

- Definition

The period of time for which the entity discloses its historical hedging percentages.

+ References

No definition available.

+ Details

Name:	adm_DerivativeHedgedItemPastPeriodOfTimeHedged
Namespace Prefix:	adm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The forward time period for which hedges have been made as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	adm_DerivativeHedgedItemTimePeriod
Namespace Prefix:	adm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

High end of the range of the percentage of the entity's anticipated commodity purchases or production hedged during the historical hedging period.

+ References

No definition available.

+ Details

Name:	adm_PercentageOfAnticipatedCommodityHedgedDuringHistoricalHedgingPeriodHighEnd
Namespace Prefix:	adm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Low end of the range of the percentage of entity's anticipated commodity purchases or production hedged during the historical hedging period

+ References

No definition available.

+ Details

Name:	adm_PercentageofAnticipatedCommodityHedgedDuringHistoricalHedgingPeriodLowEnd
Namespace Prefix:	adm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

High end of the range of the percentage of the entity's anticipated commodity purchases or production hedged over the forward hedging period.

+ References

No definition available.

+ Details

Name:	adm_PercentageofAnticipatedCommodityHedgedoverFutureHedgingPeriodHighEnd
Namespace Prefix:	adm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Low end of the range of the percentage of the entity's anticipated commodity purchases or production hedged over the forward hedging period.

+ References

No definition available.

+ Details

Name:	adm_PercentageofAnticipatedCommodityHedgedoverFutureHedgingPeriodLowEnd
Namespace Prefix:	adm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This element represents the quantity of corn processing per month under the designated cash flow hedge program.

+ References

No definition available.

+ Details

Name:	adm_ProcessingOfCornPerMonth
Namespace Prefix:	adm_
Data Type:	num:volumeItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of unrealized gain (loss) after tax related to the increase (decrease) in fair value of price risk derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income.

+ References

No definition available.

+ Details

Name:	adm_UnrealizedGainLossOnPriceRiskCashFlowHedgesAfterTaxAccumulatedOtherComprehensiveIncome
Namespace Prefix:	adm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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

- Definition

The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.13(h))

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

+ Details

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

- Definition

Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611

+ Details

Name:	us-gaap_InterestRateDerivativeAssetsAtFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The estimated net amount of unrealized gains or losses on price risk cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994

+ Details

Name:	us-gaap_PriceRiskCashFlowHedgeUnrealizedGainLossToBeReclassifiedDuringNext12Months
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	adm_DerivativeByCommodityAxis=adm_CornMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	adm_DerivativeByCommodityAxis=adm_EthanolMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Derivative Instruments and Hedging Activities (Narrative) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended		12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2012
Derivative [Line Items]
Gain (Loss) on Sale of Derivatives	$ 62us-gaap_GainLossOnSaleOfDerivatives	$ 0us-gaap_GainLossOnSaleOfDerivatives	$ (102)us-gaap_GainLossOnSaleOfDerivatives	$ (40)us-gaap_GainLossOnSaleOfDerivatives	$ 0us-gaap_GainLossOnSaleOfDerivatives
Designated As Hedging Instrument [Member]
Derivative [Line Items]
Interest Rate Derivative Assets, at Fair Value			21	0
After-tax losses in AOCI from commodity cash flow hedge transactions			(30)
After-tax losses in AOCI from commodity cash flow hedge transactions expected to be recognized in earnings.			$ (30)
Corn [Member] \| Designated As Hedging Instrument [Member]
Derivative [Line Items]
Corn processed per month (in bushels)			76,000,000
Historical time period of hedge percentages			12 months
Percentage of Anticipated Commodity Hedged During Historical Hedging Period, Low End			24.00%
Percentage of anticipated commodity purchases or production hedged during historical hedging period, high end of range (as a percent)			71.00%
Percentage of Anticipated Commodity Hedged over Future Hedging Period, Low End			0.30%
Percentage of Anticipated Commodity Hedged over Future Hedging Period, High End			23.00%
Derivative Hedged Item Time Period			12 months
Ethanol [Member] \| Designated As Hedging Instrument [Member]
Derivative [Line Items]
Historical time period of hedge percentages			12 months
Derivative Hedged Item Time Period			6 months
Commodity sales volume hedged during historical hedging period, low end of range (in gallons)			9,000,000
Commodity sales volume hedged during historical hedging period, high end of range (in gallons)			121,000,000
Contracted commodity sales volume hedged over future hedging period, low end of range (in gallons)			1,000,000
Contracted commodity sales volume hedged over future hedging period, high end of range (in gallons)			30,000,000