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. This Statement 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
- 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
- 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.