Thanks very much, and good morning, everyone, and welcome to our third quarter conference call. Joining me here today is our CFO, Christa Davies. To begin, our underlying results reflect strong performance in our Risk segment, delivery of synergy savings related to Aon Hewitt, and the repurchase of 175 million of common stock. And while not satisfied with our organic revenue performance in HR Solutions, and I'll discuss more of that in detail, we continue to execute against our long-term strategy to substantially strengthen the firm for long-term growth and value creation. Consistent with previous quarters, I'd like to cover 3 areas before turning the call over to Christa for further financial review. First is our performance against key metrics we communicate to shareholders; second is continued areas of investment across Aon; and third is overall organic growth performance. On the first topic, our performance versus key metrics. Each quarter, we measure our performance against the 3 metrics we focus on achieving over the course of the year: grow organically, expand margins and increase earnings per share. In the third quarter, organic revenue was 1% overall, highlighted by strong growth of 4% in our Retail Brokerage business. Adjusted operating margin decreased 180 basis points driven by the inclusion of Hewitt results, including a significant increase in intangible amortization expense, which had a 220 basis point negative impact. EPS increased 13%, driven by strong underlying performance and effective capital management. Overall, a quarter of continued progress against our key metrics as we remain focused on our long-term strategy. On the second topic, further areas of investment. We believe Aon is in a unique position. Solid, long-term operating performance combined with expense discipline and strong cash flow continues to enable substantial investment in colleagues and capabilities. Just a few examples. In Risk Solutions, we continue to invest in innovative technology, such as our Global Risk Insight Platform, which is the world's leading global repository risk and insurance placement information. We now have 1.2 million trades in more than 59 billion of bound premium and a growing client list of more than 20 insurance carriers utilizing the platform analytics and services capabilities. Also, we're driving our Aon Broking initiative to better match client needs with insurer appetite for risk, resulting in better economics for all participants. As highlighted by a significant D&O program of more than 175 million in premium, we're placing in the market on behalf of clients. We're also investing in additional capability and talent through recently completed acquisitions such as Aon Grieg in Norway and Glenrand in South Africa, significantly strengthening our international footprint. A final example is our investment in client leadership to drive greater productivity and efficiency, with the rollout of the revenue engine in EMEA and Asia Pacific, as well as the rollout of Client Promise, which is driving greater retention and rollover rates as clients gain better understanding of our value proposition. As we discussed previously, we are proving the concept of these investments in 2011, and as we move into 2012 and 2013, we're going to continue to drive greater scale and increased operating leverage as a result of these investments in our Risk business. In HR Solutions, we continue to strengthen our industry-leading position in both public and corporate healthcare exchanges, with the significant investment we're making in our Aon Hewitt Navigators business, enabling clients to prepare for ultimate changes in healthcare legislation with design, purchasing and administration capability. We're also expanding our capability in compensation consulting. With the recent acquisition of Ward Financial Group, a leading provider of benchmarking for insurance carriers in North America. We're also expanding our international footprint as the workforce has increasingly becoming more global, with investments in key talent and capabilities across Asia. And finally, we're continuing to invest in expanding our core HR BPO offerings through point solutions opportunities, such as dependent eligibility audits and absence management diagnostics. In summary, as we focus on the long term across Risk and HR Solutions, our fundamental client-serving capability continues to substantially strengthen around the globe. Finally, on the third topic of growth, I want to spend the next few minutes discussing the quarter for both our segments. In Risk Solutions, overall organic revenue growth was 3%, with improved rates of organic revenue in each business despite soft pricing, excess capital and fragile economic conditions globally. Against these headwinds, which are primarily market-related, we're driving a set of initiatives that continue to strengthen our performance and give us confidence that our Risk Solutions business is firmly positioned for long-term growth and leveraged to an improving economy. With the management of our renewal book portfolio through Client Promise and retention rates of 90% or better on average, highlighting strong client satisfaction. New business generation of more than $250 million across our Retail business, with solid growth across many markets including China, Latin America, Africa, New Zealand, Middle East, Ireland, Italy and U.S. Retail just to name a few, highlighting the strength of our global client-serving capability. Investments in new product and service capabilities with the rollout of GRIP, Aon Broking and Client Promise. An improved win-loss trends in our core treaty reinsurance book of business that have now been positive for the last 2 quarters. Turning to the individual businesses. In the Americas, organic revenue growth was 4%. Exposure units were relatively stable, pricing continues to be soft, down low-single digits on average, albeit at a moderating rate of decline. We also saw growth across all regions as a result of strong management of the renewal book of business in Latin America, U.S. Retail, solid growth in new business in Canada as well. A really, really solid performance overcoming soft market conditions and continued sector weakness in areas such as commercial construction and financial services, where we got leadership positions. On the international front, organic revenue growth was also 4%. Pricing continues to be flat to modestly down on average, with firmer pricing in cat-exposed regions. We saw strong growth in New Zealand and across Asia, including double-digit growth in areas such as Thailand, Taiwan and China. We saw a modest growth in U.K. Retail and EMEA as exposures are generally stable, but economic conditions remain fragile across many core markets in Continental Europe. In reinsurance, organic revenue declined 1%, a modest improvement from Q2. Results reflect the 2% decline related to facultative transactions, partially offset by 1% growth in capital markets and advisory businesses in our international treaty placements. In our core book of treaty reinsurance, which represents 85% of revenues, we saw a 2% negative impact from the market as pricing was flat to down modestly on average, with firmer pricing in cat-exposed regions and higher seen retentions as clients retain more risk. And while market impact remains negative, the underlying strength in treaty reinsurance continues to improve. As net new business was up 2%, reflecting continued improvement from a negative 3% in Q4, flat in Q1, and now plus 2% in Q2. As we look ahead to the fourth quarter, we would note that the prior year quarter was a particularly strong quarter for capital markets transactions. While our pipeline is encouraging, the timing of capital market transactions, as well as facultative transactions can be lumpy quarter-to-quarter. If certain transactions are pushed out, we'd expect a modest decline from this quarter's results, with the reverse being true of the transactions that are completed in the quarter. Overall, we continue to be encouraged by the underlying trends in the core treaty book, and we'd expect to see modest growth overall in 2012 if trends continue. Turning to HR Solutions. Overall organic revenue was negative 2%, a modest decline from flat in the prior quarter and a disappointing result compared to our previous expectations for modest improvement. Primarily due to 2 factors: Lower project-related revenue in Outsourcing and weaker results in EMEA in Consulting. Turning to the individual businesses. In Outsourcing, organic revenue was negative 2% compared to flat to the prior quarter. We saw positive growth from new client wins in both Benefits Administration and HR BPO, partially offset by price compression within expectations, suggesting continued strong underlying client performance. However, results were primarily impacted by a $13 million decrease in project-related revenue as the prior year quarter reflected strong performance, including support from multiple M&A transactions that didn't repeat at the same level this year. In addition, the quarter included $4 million related to a onetime adjustment of business in Canada. As we look to the fourth quarter, we'd expect less pressure from project-related revenue resulting in modestly improved organic revenue performance from the third quarter's results. In Consulting Services, organic revenue was a negative 2% compared to flat in the prior quarter. In the U.S. and Canada, we continue to see pressure in both Health and Benefits Consulting related to unemployment levels and in Communications Consulting from lower discretionary spend. Additionally, significant uncertainty in the third quarter surrounding economic conditions in EMEA drove lower-than-anticipated results in our Health and Benefits Consulting business. Partially offsetting these weaker results were solid growth in Asia Pacific, in Global Compensation Consulting and Investment Management Consulting, all areas where we continue to invest and see good, long-term growth opportunities. As we look to the fourth quarter, we'd expect Consulting to deliver modest organic improvement from the third quarter's result. Overall, I want to emphasize, we are not satisfied with our growth performance. While we expect economic conditions to remain fragile in the short term, against these headwinds, we're driving a set of initiatives that continue to strengthen our underlying performance and give us confidence that our HR Solutions business is positioned for improved long-term growth and leveraged to an improving economy. With solid new business generation, with over 160 wins including more than 20 new large and mid-market benefits administration wins and a very significant recent win in a large leading financial institution in HR BPO. A high degree of recurring revenue across HR Solutions with strong renewal rates, highlighting strong client satisfaction and continued investments in international markets, we were seeing double-digit growth in Investment Management Consulting and in new products and services such as our Aon Hewitt Navigators Healthcare Exchange business. In summary, our solid performance in Risk reflects the strength of our industry-leading platform and continues progress against our long-term strategy. And we're driving a set of initiatives that are strengthening the underlying performance and positioning HR Solutions for improved organic growth over time. With that said, I'd like to turn the call over to Christa for further financial review. Christa?