IAS 1: change the presentation or classification of items in its financial statements
If an entity changes the presentation or classification of items in its financial statements, it shall reclassify comparative amounts unless reclassification is impracticable. When an entity reclassifies comparative amounts, it shall disclose (including as at the beginning of the preceding period):
(a) the nature of the reclassification;
(b) the amount of each item or class of items that is reclassified; and
(c) the reason for the reclassification.
When it is impracticable to reclassify comparative amounts, an entity shall disclose:
(a) the reason for not reclassifying the amounts, and
(b) the nature of the adjustments that would have been made if the amounts had been reclassified.