Recent Accounting Guidance	12 Months Ended
	May 31, 2011
New Accounting Pronouncements And Changes In Accounting Principles Abstract
Recent Accounting Guidance	NOTE 2: RECENT ACCOUNTING GUIDANCE New accounting rules and disclosure requirements can significantly impact our reported results and the comparability of our financial statements. We believe the following new accounting guidance is relevant to the readers of our financial statements. On June 1, 2008, we adopted the authoritative guidance issued by the Financial Accounting Standards Board (“FASB”) on fair value measurements, which provides a common definition of fair value, establishes a uniform framework for measuring fair value and requires expanded disclosures about fair value measurements. On June 1, 2009, we implemented the previously deferred provisions of this guidance for nonfinancial assets and liabilities recorded at fair value, as required. The adoption of this new guidance had no impact on our financial statements. On June 1, 2009, we adopted the authoritative guidance issued by FASB on employers’ disclosures about postretirement benefit plan assets. This guidance provides objectives that an employer should consider when providing detailed disclosures about assets of a defined benefit pension or other postretirement plan, including disclosures about investment policies and strategies, categories of plan assets, significant concentrations of risk and the inputs and valuation techniques used to measure the fair value of plan assets. See Note 12 for related disclosures. On June 1, 2009, we adopted the authoritative guidance issued by FASB related to interim disclosures about the fair value of financial instruments. This guidance requires disclosures about the fair value of financial instruments for interim reporting periods in addition to annual reporting periods. In June 2011, the FASB issued new guidance to make the presentation of items within OCI more prominent. The new standard will require companies to present items of net income, items of OCI and total comprehensive income in one continuous statement or two separate consecutive statements, and companies will no longer be allowed to present items of OCI in the statement of stockholders’ equity. Reclassification adjustments between OCI and net income will be presented separately on the face of the financial statements. This new standard is effective for our fiscal year ending May 31, 2013. We believe there is no additional new accounting guidance adopted but not yet effective that is relevant to the readers of our financial statements. However, there are numerous new proposals under development which, if and when enacted, may have a significant impact on our financial reporting.