"Our performance this quarter provided an outstanding finish to a strong year," said John Haley, Willis Towers Watson's chief executive officer. "We are very pleased with our progress in 2018. We concluded our integration efforts and delivered on our financial commitments; with strong top line growth, meaningful profitability improvement and robust cash flow growth. This momentum, combined with our continued focus on executing our strategy, leaves us very well-positioned for another year of operational success and driving shareholder value."