Which document outlines the accounting treatment for business combinations according to IFRS?

IFRS 3 is the specific standard that addresses the accounting treatment for business combinations. This standard provides a framework for recognizing and measuring the identifiable assets acquired and liabilities assumed in a business combination, as well as determining goodwill or a gain from a bargain purchase.

Under IFRS 3, entities must account for a business combination using the acquisition method, which involves identifying the acquirer, determining the acquisition date, recognizing and measuring the identifiable assets acquired and the liabilities assumed, and calculating any goodwill or gain resulting from the transaction.

The other options pertain to different aspects of financial reporting. IFRS 2 deals with share-based payment, IFRS 10 addresses consolidated financial statements, and IFRS 11 relates to joint arrangements. None of these standards cover the specific requirements and guidelines for business combinations, making IFRS 3 the correct choice for this question.