Aon PLC (AON) Q1 2021 Earnings Call Transcript

Aon PLC (AON -0.97%)
Q1 2021 Earnings Call
Apr 30, 2021, 8:30 a.m. ET

Contents:

• Prepared Remarks
• Questions and Answers
• Call Participants

Prepared Remarks:

Operator

Good morning and thank you for holding. Welcome to Aon plc's First Quarter 2021 Conference Call. [Operator Instructions] I would like to remind all parties that this call is being recorded. If anyone has an objection you may disconnect your line at this time.

It is important to note that some of the comments in today's call may constitute certain statements that are forward-looking in nature, as defined by the Private Securities Reform Act of 1995. Such statements are subject to certain risks and uncertainties and could cause actual results to differ materially from historical results or those anticipated. Information concerning risk factors that could cause such differences are described in the press release covering our first quarter 2021 results, as well as having been posted on our website.

Now, it is my pleasure to turn the call over to Mr. Greg Case, CEO of Aon plc. Sir, you may begin.

Greg Case -- Chief Executive Officer

Thank you, operator, and good morning, everyone. Welcome to our first quarter 2021 conference call. I'm joined by Christa Davies, our CFO; and Eric Andersen, our President. As in previous quarters, we posted a detailed financial presentation on our website.

 I'd like to start by acknowledging the tremendous work of our colleagues across the firm. Our team continues to find ways to get back, not just to normal, but even better than before. As we like to call it, the new better. The idea of the new better started in the second half of last year with a series of regional and local client coalitions. There are now 10 coalitions of leading companies around the world that we formed to export the societal and economic implications of the pandemic.

The Group rejects the idea of accepting a sub-optimal new normal and is working to find new better. The work is ongoing and continues to offer meaningful insights into how leading organizations will work, travel, and convene in the year ahead. And we're translating those insights into new solutions that are designated and designed to accelerate recovery from COVID-19. For instance, we know that widespread global vaccine distribution is a key part of the solution and one that Aon is enabling, let me describe.

Recognizing limitations with current supply chain solutions, Aon colleagues from Commercial Risk, Rein [Phonetic] Health Solutions collaborated with insurance, reinsurance, InsurTech, and supply chain industry partners to develop a groundbreaking solution that uses sensors and analytics in the transportation and storage of vaccines. The centers provide transparent real-time data and alerts if the temperature of a vaccine shipment falls outside the manufacturers' range, potentially allowing for mitigation efforts and helping to maximize the number of doses administered to the public. It's just another example of how we're creating innovative solutions to move our industry and society forward. We're also donating all 2021 revenue from the solution to an international organization working to help end the human and economic toll caused by the pandemic.

Turning now to financials. Our global team delivered outstanding results across each of our key financial metrics, including 6% organic revenue growth, a very strong start to the year on top of 5% organic in Q1 2020. Substantial operating margin expansion of 170 basis points, 16% EPS growth, and 91% free cash flow growth. Within organic revenue, we continue to see strength in our core, driven by strong retention and net new business generation, and overall growth within more discretionary areas of revenue, with some areas coming back faster than others.

Commercial Risk delivered 9% organic, an outstanding result with very strong new business growth and growth in project-related work and double-digit growth in transaction liability. Reinsurance delivered 6% growth with strong net new business in treaty and double-digit growth in facultative placements. Retirement Solutions delivered 5% growth, and I would highlight strength in core retirement and double-digit growth in Human Capital.

Health Solutions growth of 4% was driven by strength in the core, offset by pressure in project work. One of the areas we're seeing a little slower bounce back. And data and analytics continue to see pressure from the travel and events practice globally, resulting in a 2% organic decline, so against the prior Q1 quarter of pre-pandemic results. These results are an improvement from our Q4 earnings call outlook.

During the quarter, we saw better-than-expected macroeconomic growth, which positively impacted client buying behavior. Looking forward, if macroeconomic conditions continue to be strong, we would expect mid-single-digit or greater organic revenue growth for the full year 2021. And while our Q1 results demonstrate that our Aon United strategy is driving innovative solutions that address our client's biggest challenges, we keep seeing signs that we must move faster.

We see our clients justifiably focused on the economic impact of COVID-19, but they're also increasingly focused on other challenges, like climate change, supply chain disruption, reimagining, and reconfiguring how and where work gets done, the growing health-wealth gap, and cyber. Our recent cyber risk reports highlighted findings from our proprietary cyber quotient evaluation, a comprehensive assessment of cyber risk maturity. The 2020 data tells us that organizations across regions and industries are only maintaining a basic level of cyber readiness. Specifically, only two in five organizations report they are prepared to navigate new exposures, and only 17% report having adequate application security measures in place.

And on a recent Grey Swan report, we look back at 40 years of corporate crisis, analyzing 300 examples that show the significant impact on shareholder value due to lack of preparedness. The total impact represents $1.2 trillion in destroyed value and in 10% of the events, 50% of shareholder value was lost. These risks and challenges are exactly what we want to help our clients assess and prepare for. In another great example, our Human Capital and Commercial Risk teams realize that their client in the life sciences and med-tech space had not done an assessment or quantification of cyber risk for their business or products.

Our team analyze risks across infrastructure, technology, vendor, and digitally enabled products and quantified potential losses or impacts as reputation business interruption, or [Indecipherable] revises. In response to this prioritized and quantified risk assessment, our client strengthened their own security measures and changed their insurance coverage, increasing their preparedness and reducing potential future volatility to their business. A topic that's more critical than ever for companies in the life sciences industry.

Looking forward, this is a process and a solution offering that makes innovative cyber solutions more accessible to our clients in the life sciences space. As we look to our pending combination with Willis Towers Watson, we're confident their insights and capabilities will be a compelling catalyst to this work. And this is just one example out of thousands where we see the potential for the pending combination of Aon and Willis Towers Watson teams to drive innovation, based on forward-looking analytics and insight.

As we brought together the executive committee that will be in place after the close of the combination, the potential is clear than ever. We have an opportunity to be more relevant to clients at a time when they need us the most. Another example, our Aon team is currently advising a client on the integration of their largest transaction to date, a complex global merger that's moving very quickly. Colleagues from Data Analytics, Retirement, Health and Benefits, and Human Capital came together to advise our client on harmonizing their people programs while balancing synergies and deal objectives to drive employee engagement and retention, as well as a shared vision from day one.

Our client is relying on Aon to help them protect their greatest asset, their people. We know that the combination with Willis Towers Watson will enable us to bring together our combined capabilities and then each company’s client insight around health, retirement, and engagement will improve and accelerate our ability to deliver projects like these for clients.

In summary, our first quarter results demonstrate the continued success of our strategy and position us with momentum to drive improvement on our key metrics over the course of the year, building on the track record of progress that we've delivered over the past decade. The events in 2021 continue to highlight unmet need and growing demand from clients around their biggest challenges, which we know are best addressed by our One Firm Aon United strategy. Our ability to address client need and accelerate innovation will only get better in our pending combination with Willis Towers Watson, which continues to increase our commitment and excitement to the potential of the combined firm.

Now, I'd like to turn the call over to Christa for her thoughts on our financials and long-term outlook for continued shareholder value creation. Christa?

Christa Davies -- Chief Financial Officer and Executive Vice President of Global Finance

Thanks so much, Greg, and good morning, everyone. As Greg mentioned, we delivered a strong operational and financial performance in the first quarter to start the year, highlighted by 6% organic revenue growth that translated into double-digit growth in operating income, earnings per share, and free cash flow. Our Aon United strategy has enabled continued growth across our key financial metrics. We look forward to building on this momentum through the rest of 2021 and in our pending combination with Willis Towers Watson.

As I further reflect on the quarter, we delivered organic revenue growth of 6%, driven by ongoing strength in our core business with an uneven recovery in our more discretionary areas. I would also note that total reported revenue was up 10% including the favorable impact from changes in FX, primarily driven by a weaker U.S. dollar versus the euro.

Second, we delivered strong operational improvement with operating income growth of 15% and operating margin expansion of 170 basis points to 37.4%. Stepping back, our goal is to deliver sustainable operating margin expansion over the course of the full year, as there can be volatility quarter to quarter given the seasonality of our business and timing of expenses, including long-term investment in growth.

In Q1, margin expansion was helped by two factors. First, organic revenue growth exceeded our Q4 outlook due to the impact of macroeconomic factors and client buying behavior. Second, Q1 2020 had higher expenses in areas like T&E and investments in the business, which made for an easier comparable when compared to our expectations for the rest of 2021. Looking to the rest of 2021, we anticipate investment in the business and some potential resumption of T&E later in the year.

Looking forward to quarterly patenting of expenses for the balance of 2021. As we described last year, we reduced certain discretionary expenses at the onset of the pandemic, given the significant macroeconomic uncertainty. And then returned to somewhat more normalized levels of spend in the back half of the year, as macroeconomic conditions improved and the outlook stabilized.

In 2021, compared to 2020, we expect approximately $200 million less expense to be recognized in the fourth quarter, offset by approximately $135 million more expense in Q2 and $65 million more expense in Q3. Put another way, we expect $135 million of expense to move from Q4 to Q2 and $65 million of expense to move from Q4 to Q3 when comparing to our expectations for the remainder of 2021 to prior year results, prior to any growth occurring.

This shift, representing about 2% of our annual cost base is primarily due to the actions we took and highlighted last year, including the reduction of certain discretionary expenses, including variable compensation in Q2 and Q3 of 2020. This shift also spreads our expense base more evenly across quarters, though we still do expect the occasional variability and lumpiness in expenses. This change will have an impact on quarterly margins, reducing margins in Q2 and Q3, and increasing them in Q4. However, it does not change our expectation of full-year margin expansion for 2020-2021.

As we stated previously, our goal is to deliver sustainable margin expansion over the course of each full year, driven by accelerating revenue growth, portfolio mix shift to higher growth, higher margin businesses, and leverage from Aon Business Services. Aon Business Services is focused on innovation, as well as effectiveness. Recently our Aon business services team saw an opportunity to improve premium accounting with a blockchain solution. The team works with a carrier partner and the insurance industry's standard-setting group to design and develop the clearing house to premium transactions. This process has been live since the 1st of January 2021 and has over 13,000 transactions executed. It's already improving the speed at which errors are identified and resolved.

Over time, we expect our major carrier partners and other brokers to join the platform. We see this as a significant opportunity to improve the client experience with higher quality and reduce inefficiencies across the industry. As with other Aon Business Services process improvements, efficiencies in this new blockchain process enable our colleagues to spend more time with clients and on higher value-added activities.

Turning back to the results of the quarter. We translated strong operational performance into EPS growth of 16%. As noted in our earnings material, FX translation was a favorable impact of approximately $0.18 in the quarter. If currency to remain stable at today's rates, we'd expect a $0.04 per share favorable impact in Q2, a $0.02 per share favorable impact in Q3, and a $0.01 per share favorable impact in Q4.

Finally, moving to cash and capital allocation. Free cash flow increased 91% to $532 million, primarily driven by strong operational improvement, a decrease in restructuring cash outlays, and a decrease in capex. I would note that we do expect capex for the full year to increase modestly as we invest in technology to drive business growth. Looking forward, we expect to drive free cash flow growth over the long term, building on our 10-year track record of 14% CAGR growth in free cash flow, including 64% growth to $2.6 billion free cash flow in 2020. We remain incredibly excited for the long-term cash flow potential of the pending combination.

We make capital allocation decisions based on our ROIC framework, highlighted by $50 million of share repurchase in the first quarter. As a reminder, Q1 is our seasonally smallest quarter for free cash flow, due primarily to incentive compensation payments. We also repaid $400 million of term debt in February. Looking forward, we expect to remain highly focused on closing and then successfully integrating our combination with Willis Towers Watson. Following that, we expect to continue to invest organically and inorganically in innovative content and capabilities in priority areas to service our client's unmet needs.

We remain very confident in the strength of our balance sheet and manage liquidity risk through a well-laddered debt maturity profile. In the near term, we expect to continue to manage our leverage ratios conservatively and return to our past practice of growing debt as EBITDA grows over the long term.

As I look towards our pending combination with Willis Towers Watson, we remain incredibly excited about the potential for growth in innovative solutions to clients and the shareholder value creation opportunity. We are continuing to work collaboratively with the appropriate regulators to gain approvals and we've offered remedies.

We continue to anticipate $800 million of cost synergies, taking into account the remedies offered. We would expect to allocate any divested proceeds according to our ROIC framework in which share buyback continues to be our highest return on investment. We are working toward the close in the first half of 2021 subject to regulatory approval.

In summary, our first quarter results reflect continued progress building on a decade of momentum, driven by our Aon United strategy and underpinned by our Aon Business Services operational platform. We remain incredibly excited about closing out the pending combination and beginning the integration process with Willis Towers Watson, which will continue to enable long-term shareholder value creation.

With that, I'll turn the call back over to the operator and we'd be delighted to take your questions.

Questions and Answers:

Operator

Thank you. We'll now begin our question-and-answer session. [Operator Instructions] And our first question comes from Suneet Kamath from Citi. Your line is now open.

Suneet Kamath -- Citi -- Analyst

Thanks, and good morning. So last year you guys pulled your guidance for the merger when you pulled your Aon stand-alone guidance. But now that you've reestablished guidance on a stand-alone basis, can you provide some thoughts on your expectations for guidance for the merger?

Greg Case -- Chief Executive Officer

So Suneet, I appreciate it. As we've said before, when we got together as the pandemic, until we pulled guidance overall, what we said today, as we think about Aon, obviously, we're talking about mid-single-digit or greater assuming macroeconomic conditions continued or continue. I remind everybody that before pandemic, we talked about a combined mid-single-digit or greater. And what we plan to do Suneet is, when we -- as we complete the combination we'll obviously get back to you with what we expect going forward. But remember, where we were when we started the process.

Suneet Kamath -- Citi -- Analyst

Okay. And then just focusing on the expense guidance, I guess for Aon on a stand-alone basis. Chris, I think you said, you called out a couple of things that are moving from quarter to quarter, but is there an assumed underlying kind of growth rate in expenses as we think about 2021 versus last year and if so, can you give us a sense of what that growth rate is?

Christa Davies -- Chief Financial Officer and Executive Vice President of Global Finance

Yeah. So Suneet, it's a great question, and thank you for asking. And so what you're really seeing is just $200 million come out of Q4, and then of that $135 million goes into Q2 and $65 million goes into Q3. Suneet, that is before growth, and so you should assume growth is built on top of that and we haven't given that growth rate. But what I would say is, it's in the context of full-year margin expansion for 2021 on top of a track record, as you know Suneet, over the last 10 years of 890 basis points over the last 10 years, so approximately 90 basis points a year.

Suneet Kamath -- Citi -- Analyst

Got it. And then just the last one from me is on the free cash flow. As you mentioned, 1Q is typically your lowest quarter, but the growth was quite strong this quarter. Was there anything sort of unusual from a timing perspective and maybe something was pulled forward in 1Q or just want to get some color on that?

Christa Davies -- Chief Financial Officer and Executive Vice President of Global Finance

Yeah, I mean, we do expect to drive free cash flow growth annually over the long-term, building on our track record of 14% CAGR over the last 10 years. I mean Q1 free cash flow was exceptionally strong, driven by operating income growth, very strong operating income growth in the quarter. Given our pending combination with Willis Towers Watson, and especially the impact to free cash flow relating to achieving the $800 million of cost synergies, we're not providing stand-alone guidance for Aon at this time, but we do remain incredibly excited for the long-term cash flow potential of the pending combination.

Suneet Kamath -- Citi -- Analyst

Okay, thanks.

Operator

Thank you. And our next question comes from Elyse Greenspan from Wells Fargo. Your line is now open.

Elyse Greenspan -- Wells Fargo -- Analyst

Hi, thanks. Good morning. My first question, I just want to make sure I understood correctly the 800 -- you essentially said that the $800 million of expense saves for the deal, you’re reaffirming that even with some remedies or divestitures. I guess that has been offered up to regulators, is that what you said, Christa?

Christa Davies -- Chief Financial Officer and Executive Vice President of Global Finance

That is correct, Elyse.

Elyse Greenspan -- Wells Fargo -- Analyst

Okay, great. And then my second question, I'm not sure how much detail you guys want to go into, and we obviously read in the press in terms of what divestitures might have been offered to us. In other words, the $1.8 billion kind of divestiture cap included within the merger. Is there any way that you could speak to that and give us a sense of whether you would be willing to go a certain amount above that level or any color you can give us in reference to that $1.8 billion, that was laid out with the merger?

Christa Davies -- Chief Financial Officer and Executive Vice President of Global Finance

So Elyse, we're not going to speculate on remedies. We have confirmed that we will have remedies. We're continuing to work collaboratively with regulators and we continue to anticipate, as I mentioned, the $800 million of cost synergies considering the remedies offered, and we'd expect to allocate any divestiture proceeds according to our ROIC framework in which share buyback continues to be our highest return activity.

Elyse Greenspan -- Wells Fargo -- Analyst

Okay. And then on the tax rate. I was interested in how your tax rate is impacted by GILTI and BEAT the last couple of years. And then also on the tax side, the doubling the GILTI as Biden has proposed on how to have a tangible impact on your tax rate all else equal?

Christa Davies -- Chief Financial Officer and Executive Vice President of Global Finance

So, Elyse, we're not giving guidance -- tax guidance going forward. But I would say as we look back historically, exclusive of the impact of discrete items, which can be positive or negative in a quarter, our historical underlying rate over the last four years has been 18%.

Elyse Greenspan -- Wells Fargo -- Analyst

Okay. And then one last one. You guys had said that Q1 had a tough comp and then obviously the macroeconomic environment improved and help you get to the 6% for the quarter, when we think about the mid-single-digit organic outlook or greater, does it feel like to you that forward three quarters just to mean the economy continues to improve, should be greater than the Q1, given that we would get the better economy on impacting organic as we go through the year?

Greg Case -- Chief Executive Officer

Yeah, all we’re really highlighting, Elyse, is as you go back, really Q1 last year was just really pre-pandemic, there really wasn't a lot of pandemic embedded in it and we were just observing 6% against that, so -- is a great start to the year, just really underscores the momentum we have. We're obviously not going to give guidance other than the mid-single-digit as we proceed through the year, assuming macroeconomic conditions continue to trend in the right direction. But we would just observe, listen, Commercial Risk at 9% organic and Reinsurance at 6% and Retirement at 5% and Health at 4%, is a really strong start to the year with momentum and the Data and Analytic piece Christa and I described before, obviously, as against a pre-pandemic quarter with some pressure around travel and events, but that's going to come back very, very strongly when it does. So we are -- macroeconomic conditions hold, we are comfortable with mid-single-digit or greater.

Elyse Greenspan -- Wells Fargo -- Analyst

Great. Thanks for the color.

Operator

Thank you. Our next question comes from Jimmy Bhullar from J.P. Morgan. Your line is now open.

Jimmy Bhullar -- J.P. Morgan -- Analyst

Hi, good morning. So first, I just had a question on your overall view of the potential accretion from the Willis deal. I think when you have previously talked publicly you've assumed no dispositions and obviously, you're going to have to do some dispositions and your $800 million target seems unchanged on expense savings. How do you think about the overall accretion from the deal? And do you think you'll still be able to hit your previous assumptions, given that you'll be able to do something with the proceeds from the business disposition? Or do you think there is downside to the initial numbers?

Christa Davies -- Chief Financial Officer and Executive Vice President of Global Finance

Look, Jimmy, what we would say is, we're not providing updated guidance at this time, once we close we'll certainly look forward to updating it. But what we will say is that the $800 million remains regardless of remedies. And we would note that when we originally gave the $800 million of guidance on the expense savings that was on an EPS base that was going to grow is pre-pandemic. And so the math obviously $800 million of expense is on a smaller basis, it's still a very positive outcome. And then the last thing I'd say is, clearly, none of that math assumed any upside in terms of revenue growth and meeting unmet needs of clients, which is really the entire strategic rationale for the transaction. But Greg, perhaps you want to talk about this.

Greg Case -- Chief Executive Officer

Jimmy, if you take a step back and think about where we were really well over a year ago, March 2020 as we announced the combination. We described, by the way, an opportunity that was grounded with the $800 million, as Christa just described, but really was about opportunity, opportunity for clients, opportunity for colleagues. Obviously, having delivered that opportunity for shareholders. And we described, literally, if you think about that opportunity, the next five years, from our standpoint, from a value creation standpoint, we think it is as strong as we'd ever see in any way in our 10 plus years. That includes 10 years of circa almost 1,200 basis points improvement on return on invested capital and close to 1,600 basis points improvement on free cash flow margin.

So, from a real shareholder value standpoint, a year ago, we're just really excited about this. I would tell you, over the course of the year, having spent time with Willis Towers Watson colleagues that conviction has only grown. And everything you see and we talked about externally, as Christa described very well, doesn't include how we're thinking about accelerating innovation. And there's a lot that's kind of gone on as we've begun the integration in terms of how this plays out, that really has been -- it's been really exciting. I mean the momentum that's building around this with our colleagues is quite, quite high and we're just looking forward to all aspects, client, colleagues, and shareholder impact.

Jimmy Bhullar -- J.P. Morgan -- Analyst

And then maybe one either for Greg or for Eric. Can you talk about, it seems like your comments on pricing are a little bit subdued or less upbeat than some of the underwriters, but what you're seeing in terms of pricing change in Commercial and then Reinsurance as well?

Eric Andersen -- President

Sure. Greg, maybe I'll take that. But before I do, if I can make a comment on your earlier question, just on the excitement around the combination of what we're starting to see maybe a level lower, certainly the teams have been working on integration from a client experience and a revenue standpoint, culture innovation, all those things, and we're really beginning to see the possibilities as we go deeper into the organization around the planning process, whether it's things like, on the risk side, the cat modeling and securitization experience that Aon has, the Willis' climate capabilities and their Resilience Hub and their Acclimatise, those types of things when you put them together really do provide excitement for our teams to see what's possible. And so there is a lot of those -- those things that we're identifying as we go through the process and it's really building some excitement across both organizations as they really begin to see the value they can unlock for clients.

And so now maybe to hit your question on pricing, I would say that the dynamic of the pricing as we say it's moderately positive. But it's always -- it's never a straightforward answer, right and I'll give you some context as to why. We engage these clients in a couple of steps before you ever get to the marketplace, right. We do the risk analysis and identification, we work with them on mitigating strategies, so that they don't even transfer the risk, how they can finance it among themselves, and then ultimately if they do decide to make the transfer to a third party, they are coming at this marketplace with their own risk appetite, their own budget capacity, the options in the market, we're using our capability to help them make the trade-offs.

But ultimately each product, there is no marketplace, right. I always going a kick out of when people talk about the broader market. It's a series of micro markets, each product has its own dynamics, it’s own claim trends, terms, conditions, retentions, claims, supply, demand, all of that, whether you're talking property, D&O, marine, it's a variety of different things. And ultimately, our role in this is to help clients evaluate how to manage the risk, make the right choices that they can make it -- they can make. So as we see it, it's moderate, it's moderately positive as we say, but ultimately clients make choices in every market that help them meet their own needs.

Jimmy Bhullar -- J.P. Morgan -- Analyst

Thanks.

Operator

Thank you. And our next question comes from Phil Stefano from Deutsche Bank. Your line is now open.

Phil Stefano -- Deutsche Bank -- Analyst

Yeah, thanks. Good morning and congrats on the quarter. I guess just a quick follow-up on the pending acquisition of Willis Towers Watson. So, there was a question earlier about the $1.8 billion revenue marker in the agreement. To me this is a pretty specific number. Can you give any flavor on how this number came to be that that was the line in the sand in which we might need to go back and get approvals?

Greg Case -- Chief Executive Officer

Yeah. As you step back, again, the [Indecipherable] your question was asked and answered as we did in August. But we would -- I'll come back to the opportunity that we see and how it's evolved over time. What we really want you to take away is, the opportunity we saw a year ago is stronger now than we saw a year ago. By the way, that's not just the work that Eric described and how the teams have come together and seen all the possibilities, that's also pandemic. One of the outcomes of pandemic is really an amplification in both awareness across the globe, literally across every company in the world there is a bigger awareness for things like pandemic, climate, intangible assets, cyber than more than ever before, also up into the C-suite in ways that it hasn't permeated before.

So, for us, we see a tremendous opportunity. We saw that opportunity as we brought together discussion on the combination last March and we see it continuing. So from our standpoint, as Christa described at the beginning, we're making our way through the process and making good progress and we're very excited about the outcome.

Phil Stefano -- Deutsche Bank -- Analyst

Okay. Worth a shot. Chris, that you had mentioned the expense guidance that you gave, and I appreciate that. That has some potential resumption in T&E for later this year. I was hoping you could just kind of flesh out what -- how you're thinking about -- without any specifics just kind of generally how you're thinking about that, right, if I want to run an actual versus expected of the World opening back up and people getting back to whatever normal business activities look like moving forward? How can I compare that to how you were thinking about it?

Christa Davies -- Chief Financial Officer and Executive Vice President of Global Finance

Yeah, so, I guess I’d start with, we've got a 10-year track record of margin expansion approximately 90 basis points for a decade, every year. We expect margin expansion for the full year 2021 and we’re obviously not giving specific guidance for margin expansion in 2021. But I'd say if you look to the rest of 2021, we should anticipate some investment in the business and some potential of resumption of T&E later in the year and that's really all in the context of overall margin expansion for 2021. But Greg, you may want to talk about this from a client perspective in how we're thinking about T&E and delivering the client.

Greg Case -- Chief Executive Officer

Yeah, it's really an excellent question answer, how the business evolves and this idea of new better, we’re not kidding, actually, it's been amazing. The 10 coalitions we have are literally, major cities around the world in Chicago in New York and London in Tokyo and Madrid, Singapore, etc. And these are the largest companies in the world really comparing notes on how they come back together work, travel convene in the process and we just taken away, it's huge amount from that. And in many respects, when we think about client leadership and how we go engage with clients obviously the face to face is key and will continue to be key, but our ability to make a difference with clients in remote environments when we can actually amplify what it means to be Aon United literally bringing colleagues around the world. Obviously, in a virtual way to clients has proven to us to be an unbelievably effective on both new business with existing clients but also net new opportunity. So very, very, you can call it, Eric lead – you lead this work around the world. Maybe you can talk a bit about this because it's very important as you think about T&E overall.

Eric Andersen -- President

Yeah. Sure, Greg. And look, we're going to be smart about how we do T&E in the future as business opens up to in-person meetings and it's ultimately a positive step in the global recovery that we can interact and but we've learned a lot. Right, as we've said it in the past and just using that example Greg to go a little bit deeper. Historically, if a client wanted to talk about a situation that was occurring outside their home country, we'll either try and do a conference call or plan a trip, all right. And now what we do is we open up WebEx and we actually have the leader of the country, leader of the issue in that country on the WebEx and we can solve the issue right away.

All right, certainly, there is efficiency and cost advantages to it, but more importantly, I think there is enormous client value to unlock that expertise in an immediate way where they're not getting an interpretation through someone else, they’re talking right to the source and getting that -- and getting that value in real-time. So, I mean, ultimately, we're going to use what we've learned and we're going to meet the clients where they want to be met. But I think we've learned a lot and we're going to apply it.

Greg Case -- Chief Executive Officer

One thing, just a final piece I'd add on this. It's really -- it's important to us because we really worked it for a decade. Obviously, anybody can open up WebEx as Eric described and put faces on there. But when you actually point colleagues around the world from different solution lines together and it's clear to the client that they know each other, they're reacting to different situations, they are supporting each other, that's not duplicatable, right, that's taken us a decade to work through.

And so, the IT -- it turns out the 10 faces on the screen, amplifies what it means to work Aon United together as one firm and that's what clients see, they've commented on it to us, which is wow, I didn't really understand what this meant before. And by the only way they could have seen it, as Eric described, we put 10 people in a conference room which we're never going to do, but 10 on WebEx, totally interacting on behalf of clients really addressing their issues, that is pretty cool. The example I gave on the commentary upfront around the vaccine protection was exactly that, it was a group of people together that probably wouldn't have gotten together in the same way before. So, we just want you to understand how we're thinking about our business as TV comes back, but it's much, much broader than that.

Phil Stefano -- Deutsche Bank -- Analyst

Okay, thanks for all the color. I'll take a swing at one more. When I look at the, what I would call, the underlying expenses that's revenue less adjusted operating income in the first quarter. Is there anything abnormal in the growth rate or anything that you'd call out that makes the growth rate, we saw in first quarter '21 versus the first quarter '20, not a good way to think about this?

Christa Davies -- Chief Financial Officer and Executive Vice President of Global Finance

So, if you're talking about expenses though, what I'd notice in expenses is, in 2021 you have a lot less T&E and you have a lot less investment in the business compared to Q1 2020, so the margin expansion is much more pronounced in Q1 that you might get in the full year. We do expect full-year margin expansion. And then we did see an increase in comp and benefits due to FX, but also due to investment in the business. And so, I guess they're probably the two unusual things I'd sort of note in Q1.

Phil Stefano -- Deutsche Bank – Analyst

Great. Alright. I appreciate it. Thank you.

Operator

Thank you. And our next question comes from David Motemaden from Evercore ISI. Your line is now open.

David Motemaden -- Evercore ISI -- Analyst

Hi, thanks, good morning. I wanted to just talk about the strong level of organic growth this quarter. So, I guess I was just wondering, is there anything one-off in this result this quarter. And just as I think about the rest of the year, is there any reason why we shouldn't expect an acceleration in organic growth from these levels?

Greg Case -- Chief Executive Officer

As we described, David, our view is, great momentum as we begin the year, no doubt. First quarter, strong across the board on all aspects with some real standouts and we see as macroeconomic conditions evolve mid-single-digit or greater, as we think about where we are for the year. And obviously, the first quarter gave us real confidence, growing confidence in that, assuming macroeconomic conditions hold.

David Motemaden -- Evercore ISI -- Analyst

Got it. And nothing one-off in that result that would lead you...

Greg Case -- Chief Executive Officer

No.

David Motemaden -- Evercore ISI -- Analyst

To think that we should come down off this sets. Okay, that's helpful.

Greg Case -- Chief Executive Officer

Yeah, it would be usually across the board in terms of sort of all the different aspects, Commercial Risk, Reinsurance, Retirement, Health, across the board with real -- great work by the teams around the world on new business growth and growth in project-related work, which came back a bit, particularly in some of the surge months.

David Motemaden -- Evercore ISI -- Analyst

Got it, thanks. And then maybe just on the combination with Willis. Christa, I think you had said something to the effect that you would expect to achieve the $800 million of cost synergies, in any level of concessions. But I guess I just wanted to sort of dig into that is like, maybe just talk about, is there a level that would make that tough to achieve, and just sort of -- maybe just sort of throwback the onion a little bit on just what gives you confidence that you can get to that $800 million of saves?

Christa Davies -- Chief Financial Officer and Executive Vice President of Global Finance

Yeah. So, David, we continue to anticipate $800 million of cost synergies, considering the remedies we've offered and we'd expect to allocate any divestiture proceeds according to our ROIC framework in which share buyback continues to be our highest expected return activity. I would note that the $800 million of cost synergies, we're very confident in achieving, it's 5.5% of the combined cost base. And we achieved 11% of the combined cost base in Aon US and 18% of the combined cost base in Aon Benfield and there is no structural differences here. And so we feel really good about achieving that $800 million.

David Motemaden -- Evercore ISI -- Analyst

Got it. Helpful. That's clear. And then maybe if I could just sneak one more in, just on the margin, you guys obviously -- I appreciate the slide you guys put in the deck, you guys have expanded margins by 90 basis points a year over the last decade, you did 170 basis points in the first quarter. Obviously you need comps there and I know that you guide for the full year. But I guess is there any reason to expect that expand -- margins shouldn't expand here over the next three quarters?

Christa Davies -- Chief Financial Officer and Executive Vice President of Global Finance

So first of all, David, we absolutely expect full-year margin expansion for the year 2021 and we think about margin expansion in the context of full year, because quarter-to-quarter expenses will be lumpy, as we sort of talked about with the repatenting of expenses. But what we would say is, Q1 was unusual in terms of margin expansion, because we had a pre-pandemic comparable in Q1 2020. And so I think about margin expansion over the course of the full year 2021, and as you said, we had a 10-year track record of 890 basis points of margin expansion over the last 10 years, so 90 basis points a year and we're on track to do full year margin expansion again in 2021.

David Motemaden -- Evercore ISI -- Analyst

Thank you.

Operator

Thank you. And our final question comes from Meyer Shields from KBW. Your line is now open.

Meyer Shields -- KBW -- Analyst

Thanks. I guess to begin a basic question. You talked a little bit about the blockchain for premium clearing house. How should we expect to see that in the financials, what are the numbers, but where does that make a difference?

Christa Davies -- Chief Financial Officer and Executive Vice President of Global Finance

Yeah, I mean it really makes a difference in terms of expansion. It's driving improved quality and therefore reduced errors. And it's driving efficiency, because it's allowing colleagues to spend more time on high value activities with their client. So it's both reduced errors and improved efficiency and then utilizing client experience. But I mean, Meyer, the simple answer is operating margin expansion.

Meyer Shields -- KBW -- Analyst

Okay. That's perfect, I think that's what I was looking for. Second question, you never, I think, disclosed a number for the expected revenue synergies from the innovation. I know the $800 million is still there, is the internal number for revenues still the same?

Greg Case -- Chief Executive Officer

Well, as we said before, we didn't disclose, Meyer, as you described. But the entire region we are bringing the combination together, really it goes back to this idea of, we've got to accelerate, we've got to find ways to accelerate innovation on behalf of clients, continuing to do what we're doing, but just keep getting better on their behalf. And Meyer, it's not hard to find the categories where we can continue to improve and support. Look at issues like pandemic, obviously, but how we can bring solutions that really matter for clients and climate? It is I think about taking actions to go zero carbon. How do we help them reduce volatility in that arena [Phonetic]. We had a set of views back in March 2020 on that. And Eric, I think, described it very well, as we spent time with our colleagues at Willis Towers Watson, we see more potential and possibilities than ever and pandemic happened. So clients are actually more attuned to like, what am I going to do on this and how am I going to play it out.

Things like intangible assets, we've made great progress on intangible assets and how you think about defending the house on intangible assets, but now with Willis Towers Watson the opportunity, we believe, is even greater, areas like cyber, etc. So we are – we were excited in 2020 around the possibilities on what we can do to drive innovation, which is in fact net new opportunity for clients and for our colleagues, but also revenue and we see that opportunity greater now than we saw it a year ago.

Operator

Thank you. I would now like to turn the call back over to Greg Case for closing remarks.

Greg Case -- Chief Executive Officer

Thank you, Brittany. I just wanted to say to everyone, thank you very much for joining this quarter. We appreciate it and very much look forward to our discussion in the next quarter. Thanks so much.

Operator

[Operator Closing Remarks]

Duration: 44 minutes

Call participants:

Greg Case -- Chief Executive Officer

Christa Davies -- Chief Financial Officer and Executive Vice President of Global Finance

Eric Andersen -- President

Suneet Kamath -- Citi -- Analyst

Elyse Greenspan -- Wells Fargo -- Analyst

Jimmy Bhullar -- J.P. Morgan -- Analyst

Phil Stefano -- Deutsche Bank -- Analyst

David Motemaden -- Evercore ISI -- Analyst

Meyer Shields -- KBW -- Analyst

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