Basis of Presentation (Policies)	9 Months Ended
Basis of Presentation (Policies)	Feb. 29, 2016
Recently Issued Accounting Standards	Recently Issued Accounting Standards In May 2014, amended accounting guidance was issued that replaces most existing revenue recognition guidance under U.S. GAAP. The amended guidance requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The amended guidance is effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. We are in the process of evaluating the effect this guidance will have on our consolidated financial position and results of operations. The amended guidance permits the use of either the retrospective or cumulative effect transition method. We have not selected a transition method nor have we determined the effect of the amended guidance on our ongoing financial reporting. In April 2015, amended accounting guidance was issued to simplify the presentation of debt issuance costs by requiring that such costs be presented in the balance sheet as a direct deduction from the carrying amount of the corresponding debt liability itself. For public business entities, the amended guidance is effective for financial statements issued for fiscal years beginning after December 15, 2015, including interim periods within those fiscal years. Early application is permitted for financial statements that have not been issued. The revised guidance is to be applied on a retrospective basis, and entities are to comply with the applicable disclosures for a change in an accounting principle accordingly. The adoption of this guidance will not have a significant impact on our consolidated financial position and results of operations. In July 2015, amended accounting guidance was issued regarding the measurement of inventory. The amended guidance requires that inventory accounted for under the first-in, first-out (FIFO) or average cost methods be measured at the lower of cost and net realizable value, where net realizable value represents the estimated selling price of inventory in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The amended guidance has no impact on inventory accounted for under the last-in, first-out (LIFO) or retail inventory methods. For public business entities, the amended guidance is effective prospectively for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early application is permitted as of the beginning of an interim or annual reporting period. We are in the process of evaluating the effect this guidance will have on our consolidated financial position and results of operations, and we have not determined the effect of the amended guidance on our ongoing financial reporting. In September 2015, amended accounting guidance was issued regarding adjustments to provisional amounts reported in conjunction with a business combination. The amended guidance requires that an acquirer in a business combination recognize adjustments to provisional amounts identified during the measurement period in the reporting period in which the adjustment amounts are determined. The amendment also requires that the acquirer record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change, calculated as if the accounting had been completed at the acquisition date. Additionally, the amendment requires the acquirer to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. For public business entities, the amended guidance is effective prospectively for fiscal years beginning after December 15, 2015, including interim periods within those fiscal years. Early application is permitted for financial statements that have not been issued. We are in the process of evaluating the effect this guidance will have on our consolidated financial position and results of operations, and we have not determined the effect of the amended guidance on our ongoing financial reporting. In November 2015, amended accounting guidance was issued that simplifies the presentation of deferred income taxes. The amended guidance requires that all deferred income tax assets and liabilities be classified as noncurrent on a classified statement of financial position. For public business entities, the amended guidance is effective for financial statements issued for annual periods beginning after December 15, 2016, including interim periods within those annual periods. Early application is permitted as of the beginning of an interim or annual reporting period, and the change may be applied either prospectively or retrospectively. We are in the process of evaluating the effect this guidance will have on our consolidated financial position and results of operations, and we have not determined the effect of the amended guidance on our ongoing financial reporting. In February 2016, amended accounting guidance was issued that replaces most existing lease accounting guidance under U.S. GAAP. Among other changes, the amended guidance requires that lease assets and liabilities be recognized on the balance sheet by lessees for those leases classified as operating leases under previous guidance. For public business entities, the amended guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early application is permitted, and the change is to be applied using a modified retrospective approach as of the beginning of the earliest period presented. We are in the process of evaluating the effect this guidance will have on our consolidated financial position and results of operations, and we have not determined the effect of the amended guidance on our ongoing financial reporting.
Economic (Non-designated) Hedges	Economic (Non-designated) Hedges We enter into foreign currency contracts to manage our foreign exchange exposure related to inter-company and financing transactions that do not meet the requirements for hedge accounting treatment. We also enter into certain commodity contracts that do not qualify for hedge accounting treatment. Accordingly, these derivative instruments are adjusted to current market value at the end of each period through earnings.
Cash Flow Hedges
Cash Flow Hedges	Cash Flow Hedges We enter into derivative instruments to hedge our exposure to changes in cash flows attributable to interest rates, foreign exchange rates, and commodity price fluctuations associated with certain forecasted transactions. These derivative instruments are designated and qualify as cash flow hedges. Accordingly, the effective portion of the gain or loss on the derivative instrument is reported as a component of other comprehensive income (loss) (“OCI”) and reclassified into earnings in the same financial statement caption associated with the forecasted transaction and in the same period during which the hedged transaction affects earnings. The ineffective portion of the gain or loss on the derivative instrument is recognized in earnings immediately.