Legal Proceedings, Guarantees, and Commitments	12 Months Ended
Dec. 31, 2017
Guarantees [Abstract]
Legal Proceedings, Guarantees, and Commitments	Legal Proceedings, Guarantees, and Commitments The Company is routinely involved in a number of actual or threatened legal actions, including those involving alleged personal injuries, employment law, product liability, intellectual property, environmental issues, alleged tax liability (see Note 13 for information on income tax matters), and class actions. The Company also routinely receives inquiries from regulators and other government authorities relating to various aspects of our business, and at any given time, the Company has matters at various stages of resolution with the applicable government authorities. The outcomes of these matters are not within our complete control and may not be known for prolonged periods of time. In some actions, claimants seek damages, as well as other relief, including injunctive relief, that could require significant expenditures or result in lost revenues. In accordance with applicable accounting standards, the Company records a liability in its consolidated financial statements for material loss contingencies when a loss is known or considered probable and the amount can be reasonably estimated. If the reasonable estimate of a known or probable loss is a range, and no amount within the range is a better estimate than any other, the minimum amount of the range is accrued. If a material loss contingency is reasonably possible but not known or probable, and can be reasonably estimated, the estimated loss or range of loss is disclosed in the notes to the consolidated financial statements. When determining the estimated loss or range of loss, significant judgment is required to estimate the amount and timing of a loss to be recorded. Estimates of probable losses resulting from litigation and governmental proceedings involving the Company are inherently difficult to predict, particularly when the matters are in early procedural stages, with incomplete facts or legal discovery; involve unsubstantiated or indeterminate claims for damages; potentially involve penalties, fines, disgorgement, or punitive damages; or could result in a change in business practice. The Company is a party to numerous lawsuits pending in various U.S. state and federal courts arising out of Syngenta Corporation’s (Syngenta) marketing and distribution of genetically modified corn products, Agrisure Viptera and Agrisure Duracade, in the U.S. First, the Company brought a state court action in Louisiana against Syngenta in 2014, alleging Syngenta was negligent in commercializing its products before the products were approved in China. In December 2017, the Company and Syngenta reached a confidential settlement of this action. Second, the Company is a party in a number of purported class actions filed beginning in 2013 by farmers and other parties against Syngenta in federal and state courts, again alleging that Syngenta was negligent in commercializing its products. The federal actions were consolidated for pretrial proceedings in a multidistrict litigation (MDL) proceeding in federal court in Kansas City, Kansas, and some state actions were consolidated for pretrial proceedings in MDL in Minnesota state court. In the fourth quarter of 2015, Syngenta filed third-party claims against the Company and other grain companies in these MDLs seeking contribution in the event Syngenta is held liable in these lawsuits. In September 2017, Syngenta filed similar third-party claims against the Company in Iowa state court. In September 2017, Syngenta and the farmer plaintiffs reached a tentative settlement, subject to court approval, of all claims by those plaintiffs, and as noted above, in December 2017, the Company and Syngenta reached a confidential settlement of all claims. Third, the Company and other grain companies have been named as defendants in numerous individual and purported class action suits filed by farmers and other parties in state and federal courts beginning in the fourth quarter of 2015, alleging the Company and other grain companies were negligent in failing to screen for genetically modified corn. On September 6, 2016, the court in the Minnesota state MDL dismissed all claims against the Company, and on January 4, 2017, a federal court in the Southern District of Illinois similarly dismissed all of the pending complaints against the Company in Southern Illinois. Some parties are expected to appeal some or all of these dismissals. Currently, the Company remains a defendant only in certain state court actions by farmers and other parties pending in Illinois state court, which the Company has moved to dismiss as well. The Company denies liability in all of the actions in which it has been named as a third-party defendant or defendant and is vigorously defending itself in these cases. All of these actions are in pretrial proceedings. At this time, the Company is unable to predict the final outcome of this matter with any reasonable degree of certainty, but believes the outcome will not have a material adverse effect on its financial condition, results of operations, or cash flows.

Legal Proceedings, Guarantees, and Commitments

The Company is routinely involved in a number of actual or threatened legal actions, including those involving alleged personal injuries, employment law, product liability, intellectual property, environmental issues, alleged tax liability (see Note 13 for information on income tax matters), and class actions. The Company also routinely receives inquiries from regulators and other government authorities relating to various aspects of our business, and at any given time, the Company has matters at various stages of resolution with the applicable government authorities. The outcomes of these matters are not within our complete control and may not be known for prolonged periods of time. In some actions, claimants seek damages, as well as other relief, including injunctive relief, that could require significant expenditures or result in lost revenues. In accordance with applicable accounting standards, the Company records a liability in its consolidated financial statements for material loss contingencies when a loss is known or considered probable and the amount can be reasonably estimated. If the reasonable estimate of a known or probable loss is a range, and no amount within the range is a better estimate than any other, the minimum amount of the range is accrued. If a material loss contingency is reasonably possible but not known or probable, and can be reasonably estimated, the estimated loss or range of loss is disclosed in the notes to the consolidated financial statements. When determining the estimated loss or range of loss, significant judgment is required to estimate the amount and timing of a loss to be recorded. Estimates of probable losses resulting from litigation and governmental proceedings involving the Company are inherently difficult to predict, particularly when the matters are in early procedural stages, with incomplete facts or legal discovery; involve unsubstantiated or indeterminate claims for damages; potentially involve penalties, fines, disgorgement, or punitive damages; or could result in a change in business practice.

The Company is a party to numerous lawsuits pending in various U.S. state and federal courts arising out of Syngenta Corporation’s (Syngenta) marketing and distribution of genetically modified corn products, Agrisure Viptera and Agrisure Duracade, in the U.S. First, the Company brought a state court action in Louisiana against Syngenta in 2014, alleging Syngenta was negligent in commercializing its products before the products were approved in China. In December 2017, the Company and Syngenta reached a confidential settlement of this action. Second, the Company is a party in a number of purported class actions filed beginning in 2013 by farmers and other parties against Syngenta in federal and state courts, again alleging that Syngenta was negligent in commercializing its products. The federal actions were consolidated for pretrial proceedings in a multidistrict litigation (MDL) proceeding in federal court in Kansas City, Kansas, and some state actions were consolidated for pretrial proceedings in MDL in Minnesota state court. In the fourth quarter of 2015, Syngenta filed third-party claims against the Company and other grain companies in these MDLs seeking contribution in the event Syngenta is held liable in these lawsuits. In September 2017, Syngenta filed similar third-party claims against the Company in Iowa state court. In September 2017, Syngenta and the farmer plaintiffs reached a tentative settlement, subject to court approval, of all claims by those plaintiffs, and as noted above, in December 2017, the Company and Syngenta reached a confidential settlement of all claims. Third, the Company and other grain companies have been named as defendants in numerous individual and purported class action suits filed by farmers and other parties in state and federal courts beginning in the fourth quarter of 2015, alleging the Company and other grain companies were negligent in failing to screen for genetically modified corn. On September 6, 2016, the court in the Minnesota state MDL dismissed all claims against the Company, and on January 4, 2017, a federal court in the Southern District of Illinois similarly dismissed all of the pending complaints against the Company in Southern Illinois. Some parties are expected to appeal some or all of these dismissals. Currently, the Company remains a defendant only in certain state court actions by farmers and other parties pending in Illinois state court, which the Company has moved to dismiss as well. The Company denies liability in all of the actions in which it has been named as a third-party defendant or defendant and is vigorously defending itself in these cases. All of these actions are in pretrial proceedings. At this time, the Company is unable to predict the final outcome of this matter with any reasonable degree of certainty, but believes the outcome will not have a material adverse effect on its financial condition, results of operations, or cash flows.