AON Plc reported for the financial year 2015, total revenues of USD 11.7 billion, down by 3% y-o-y "due to a 6% unfavorable impact from foreign currency translation, partially offset by 3% organic growth in commissions and fees". By divisions, Risk Solutions total revenue decreased 5% to USD 7.4 billion and HR Solutions total revenue increased 1% to USD 4.3 billion. For the fourth quarter of 2015, AON reported flat revenue of USD 3.3 billion.

Net income attributable to AON shareholders for 2015 decreased 1% to USD 1.4 billion compared to the prior year, while the value of net income per share increased 5% to USD 4.88 per share (vs. USD 4.66 per share in 2014).

During 2015, the Company repurchased approximately 16 million Class A Ordinary Shares for USD 1.6 billion at an average price of USD 97.04 per share.

"Overall, our results reflect a strong performance for both the fourth quarter and the full year 2015. In a year of substantial volatility driven by macroeconomic factors and industry headwinds, we continued to invest heavily in client-serving capabilities across our industry-leading platform", said Greg CASE, President and Chief Executive Officer.