Segment Accounting Policies :
Segment information should be prepared in conformity with the accounting policies adopted for preparing and presenting the financial statements of the enterprise as a whole.
There is a presumption that the accounting policies that the directors and management of an enterprise have chosen to use in preparing the financial statements of the enterprise as a whole are those that the directors and management believe are the most appropriate for external reporting purposes. Since the purpose of segment information is to help users of financial statements better understand and make more informed judgements about the enterprise as a whole, this Standard requires the use, in preparing segment information, of the accounting policies adopted for preparing and presenting the financial statements of the enterprise as a whole. That does not mean, however, that the enterprise accounting policies are to be applied to reportable segments as if the segments were separate stand-alone reporting entities. A detailed calculation done in applying a particular accounting policy at the enterprise-wide level may be allocated to segments if there is a reasonable basis for doing so. Pension calculations, for example, often are done for an enterprise as a whole, but the enterprise-wide figures may be allocated to segments based on salary and demographic data for the segments.
This Standard does not prohibit the disclosure of additional segment information that is prepared on a basis other than the accounting policies adopted for the enterprise financial statements provided that (a) the information is reported internally to the board of directors and the chief executive officer for purposes of making decisions about allocating resources to the segment and assessing its performance and (b) the basis of measurement for this additional information is clearly described.
Assets and liabilities that relate jointly to two or more segments should be allocated to segments if, and only if, their related revenues and expenses also are allocated to those segments.
The way in which asset, liability, revenue, and expense items are allocated to segments depends on such factors as the nature of those items, the activities conducted by the segment, and the relative autonomy of that segment. It is not possible or appropriate to specify a single basis of allocation that should be adopted by all enterprises; nor is it appropriate to force allocation of enterprise asset, liability, revenue, and expense items that relate jointly to two or more segments, if the only basis for making those allocations is arbitrary. At the same time, the definitions of segment revenue, segment expense, segment assets, and segment liabilities are interrelated, and the resulting allocations should be consistent. Therefore, jointly used assets and liabilities are allocated to segments if, and only if, their related revenues and expenses also are allocated to those segments. For example, an asset is included in segment assets if, and only if, the related depreciation or amortisation is included in segment expense.