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Subsequent Events Subsequent Events (Details) (EUR €) In Millions, unless otherwise specified | Apr. 21, 2015 | May 05, 2015 entity
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Eaststarch C.V. [Member] |  |
Subsequent Event [Line Items] |  |
Equity Method Investment, Ownership Percentage | 50.00%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_SubsequentEventTypeAxis = adm_EaststarchC.V.Member |
Transaction value of pending acquisition | € 240 adm_Transactionvalueofpendingacquisition / us-gaap_SubsequentEventTypeAxis = adm_EaststarchC.V.Member |
North Star Shipping/Minmetal [Member] [Member] |  |
Subsequent Event [Line Items] |  |
Number of joint ventures that will be acquired |  | 2 adm_Numberofjointventuresthatwillbeacquired / us-gaap_SubsequentEventTypeAxis = adm_NorthStarShippingMinmetalMemberMember

X
- Definition Number of joint ventures that will be acquired + References No definition available. + Details
Name: | adm_Numberofjointventuresthatwillbeacquired
Namespace Prefix: | adm_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The transaction value of the pending acquisition of an entity. + References No definition available. + Details
Name: | adm_Transactionvalueofpendingacquisition
Namespace Prefix: | adm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=adm_EaststarchC.V.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=adm_NorthStarShippingMinmetalMemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |