Westfield Group is a retail property group. The Company has interests in and operates a portfolio of 119 regional shopping centers in Australia, New Zealand, the United States and the United Kingdom, with almost 24,000 retailers in more than 10 million square meters of retail space. Westfield is a vertically integrated shopping centre group. It manages aspects of shopping centre development from design and construction through to leasing, management and marketing. It operates in three segments: Operational, Development and Corporate. Operational segment includes net property income from existing shopping centers and completed developments, revaluation of existing centers, external fee income from third parties and other operational expenses. Development segment includes revaluation of developments, development expenses, expenses relating to review and assessment of new assets and portfolios acquisitions, income and expenses on properties held for future redevelopment.