Subsequent Event Subsequent Event (Details) (Glencore transaction [Member])	Feb. 03, 2015
Glencore transaction [Member]
Subsequent Event [Line Items]
Percentage of ownership to be sold	50.00%

This elements represents the percentage of ownership in a facility or business that will be sold.

No definition available.

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