Well thank you very much Rick. So Walt and Rick talked about how our no trade-off positioning continues to resonate with both clients and prospects. The continued progress we're making with the Ameritrade acquisition, with the final transition group scheduled for May, our achievements and priorities around scale and efficiency, win-win monetization, segmentation, and our newer priority ease, and the large opportunity in front of us over the coming years. In my time today, I'll briefly review our 2023 financial performance, provide an update on client cash realignment, and share some thoughts on 2024. The important point is that in the fourth quarter and really over the last nine months, we continue to see notable improvement across the various tactical metrics on which there has been a lot of focus lately, including the pace of client cash reallocation activity, the level of supplemental borrowing we're utilizing, and our capital levels inclusive of AOCI. And what that means is that 2024 is likely to be somewhat of a transitional year from a financial standpoint, but with steadily improving financial results that bridge from what proved to be a challenging 2023 to what we believe is a very promising future ahead. And so while environmental factors may not allow progress to follow a strictly linear path, we believe we're moving ever closer to the point where the noise partially obscuring our long-term growth should dissipate and our relatively straightforward financial formula should begin to reassert itself once again powered by solid organic growth, our diversified business model converting that asset growth into strong revenue growth through the cycle; continued expense discipline, producing growing margins. And as our tangible capital levels continue to grow, the return of meaningful opportunistic capital return. In other words, a resumption of the proven model that you are all familiar with and that has delivered for clients and stockholders for over five decades. As Walt mentioned, 2023 was an eventful year for many of our clients and certainly a challenging one for our business model. And so not surprisingly, our financial performance was off 2022's record levels with a little under $19 billion of revenue and $3.13 of adjusted EPS. But despite those financial headwinds, we still produced an adjusted pre-tax margin of over 40%. Our fifth consecutive year doing so, which demonstrates the strength and resilience of our business model through a wide range of environments. Now turning our attention to the balance sheet. The big story last year, of course, was the roughly 30% decline in client cash on our balance sheet, of which over 80% moved in the first-half of the year. This was the outcome of clients moving some of their cash into higher-earning alternatives, as Walt mentioned, that was often with our active support and encouragement. And importantly, that money is staying at Schwab, as evidenced by the approximately $200 billion increase in purchase money funds and over $225 billion increase in fixed income in CDs our clients hold. And we supported some of that activity by utilizing temporary or supplemental borrowing, including both FHLB advances and Schwab Bank CDs. And at just under $80 billion at the end of the quarter, those have fallen by more than $17 billion from the peak level reached in May. And finally, our capital position continues to get even stronger with our consolidated Tier 1 leverage ratio rising to 8.5% and our adjusted Tier 1 leverage ratio, inclusive of AOCI, and therefore what our binding constraint would be if we lose the AOCI opt-out, at Schwab Bank now nearly 5.4%, meaning we are now meeting what will likely be the new quote well capitalized standard at our banks over four years ahead of the anticipated full implementation date. During last quarter's update, we talked about the slowing pace of client cash realignment over the preceding months. And in November, our clients actually added to their transactional cash balances. And then in December, we saw an approximately $15 billion increase in transactional sweep cash. Now, historically, December flows benefit from seasonal factors, but even so, when you compare December 2023 to December 2022, it is quite clear that this dynamic is receding as an important driver for us. You can also see that trend when you look at purchase money fund flows and specifically that minority of those net flows that are funded from client cash on the balance sheet. Now, as we turn our attention to 2024, our near-term financial performance will, as always, be shaped by external factors that are difficult to predict. Interest rates, equity market performance, and client trading activity. And then given the much larger sensitivity to client cash allocations, given where interest rates are today than they were, let's say three years ago, that will, of course, be a significant factor. So let's talk about this one. And given the importance of this, let's spend a bit more time here. There are really three main forces that will influence the trend of our clients' transactional cash during 2024. Any remaining client cash realignment from existing clients, the contribution of cash we attract from new clients, which I'll talk about in a moment, is the source of the greatest uncertainty moving forward, and seasonal dynamics that are generally similar every year, but can vary based on environmental conditions. We'll start with the behavior of our existing clients. And as we've discussed, we're clearly in the very late innings of the client cash realignment activity. You can see it in the monthly reporting we have shared, whether you look at total balances, balances per account, or cash as a percent of assets. And that high level trend is supported by various dynamics you see when you look under the hood. We're seeing stabilization of activity among both RIA and retail clients. Now we've talked about how cash realignment is an event, not a process. And we're seeing a decrease in both the number of those events and the average amount of the cash being realigned. Now while we have a high degree of confidence in our ability to predict the behavior of our existing clients, it's a bit harder to do so with new clients over a very short timeframe, like a year. Now, that contribution depends on the level of new clients we attract and the size of those accounts. And then how much of the net new assets comes in the form of cash and stays there, which will be influenced by investor sentiment, quantitative tightening by the Fed, inflation, savings rates, and so forth. And then you throw in that this is an election year, which normally brings an elevated degree of volatility, makes these predictions even tougher. And what this means is that while we have seen throughout our history that over time, cash balances grow with the growth in accounts and assets, over a shorter period, like a quarter or a year, it's harder to gauge exactly how much new accounts will contribute. And finally, the evolution of transactional cash over the course of 2024 is likely to be influenced by seasonal patterns, which follow a similar trajectory every year, but can vary in terms of their magnitude. That means we're seeing some cash getting invested into the markets in the first quarter. And given the large inflows we saw in December, the investment activity could be at an elevated start this year. And then we'll likely see a reduction in April as clients pay taxes before we cap the year with an anticipated buildup in December. So what does all this mean for our 2024 financial performance? Given the various moving pieces, we decided to bring back a concept you may recall we last used in 2019, which is to share with you a couple of mathematical illustrations around how our financial performance could unfold, based on what happens with certain and difficult to predict inputs. And those are trading activity. We looked at flat to 2023 levels, plus or minus 5%. And where transactional cash finishes the year relative to the 12/31 levels. Again, flat plus 5% or minus 10%. Those illustrations share a couple of common and pretty conventional assumptions. Most importantly, normal market appreciation and rates that follow the dot plots. And those illustrations could result in revenue that is plus or minus 5% there are 2023 levels or said another way, revenue that is 0% to 10% higher than our annualized Q4 2023 run rate, even with three rate cuts. We're planning, as we've shared previously, to keep adjusted expenses flat year-over-year. And that would result in an adjusted pre-tax margin of a little under 40% to somewhere in the mid-40s. Now I know it's tempting to pick the mid-point of the illustrations and interpret that as our outlook. That is not how these illustrations are intended to be used. This is just math. Using some metrics, you can track on an ongoing basis to evolve your own perspectives on our potential performance over time. And as we typically do, we have included in the appendix a set of sensitivities intended to help you make adjustments as you see fit. Now looking at the range of possibility, it doesn't apply much of any growth in terms of full year adjusted EPS. But given the consistent pay down in the higher cost supplemental borrowing, it suggests strong sequential momentum in revenue and in earnings. With a potential exit velocity heading into 2025, that is at least 20% better than where we ended 2023. And with increasing momentum as we progress through 2025 as well. Let's drill a little deeper into the expense story. Schwab has been and always will be a growth company, a company that continually invests in improving the client experience. At the same time, we're a company that recognizes that one of our biggest competitive advantages, as Walt mentioned, is our industry-leading cost structure, which is measured as EOCA. Achieving both of those requires careful balance and discipline. And in 2024, even as we're holding spending flat, we're still making significant investments that Rick talked about that will help sustain our long-term organic growth, boost our revenue, and increase our efficiency during 2024 and beyond. Our current revenue and earnings are being pressured, of course, by our utilization of the higher cost funding in the form of CDs and FHLB advances. Those are very much a temporary funding source. And as we pay off those, we continue to see a path towards a net interest margin in the 2.20% to 2.50% range by the end of this year and approaching 3% by the end of 2025 even if rates fall roughly 200 basis points from where they are today, as the dot plots would indicate, with a potential for it to expand further moving forward as we reinvest our securities portfolio at higher market rates than what we currently earn. Now while we pause our buyback in order to build our capital levels, capital return remains a very important part of our financial formula, given our very high return on capital and negligible credit exposure. Our capital levels have already reached the so-called well-capitalized threshold, even if AOCI is included. And we'd expect our consolidated adjusted Tier 1 leverage ratio to reach the upper 6% range by the end of 2024, at which point we'll be in a position to at least consider resuming opportunistic buybacks. Both Walt and I talked about 2024 being somewhat of a transitional year from a financial standpoint, but we also talked about the steady improvement we expect to see throughout the year. In some ways, I hate to use the phrase coiled spring, but I think that's exactly what is being set up as we move into 2025, as we complete the Ameritrade integration, creating a true best of breed platform and unlocking both revenue and expense synergies. We continue to advance our strategic agenda even as we maintain flat expenses. Transactional cash balances inflect and we begin to see sustained growth. And all that plus continued business momentum creates an opportunity for a return to sequential revenue growth and accelerating momentum toward the end of the year and into 2025. And that paves the way for a return to our long-term financial formula. One that is powered by our position as the premier asset gatherer, producing consistent 5% to 7% organic growth through the cycle with industry-leading client loyalty and a leadership position in the two fastest growing segments within wealth management. One that has a proven ability to expand margins through the cycle with the potential for even more dramatic margin expansion in the years ahead, back above 50% as revenue benefits from paying off higher cost borrowings and expenses benefits from harvesting the remaining expense energies. And one that can combine that strong organic growth and revenue growth with more meaningful capital return as our capital levels inclusive of AOCI march higher. And so when you take a step back and look at our potential financial performance, your perspective depends on your time frame. In the immediate term, we have been dealing with some pressures that have constrained our financial results. But those pressures are temporary, not permanent. So long-term opportunity, the long-term potential remains significant. And as an organization that has a long time horizon, that is what fuels our optimism, our confidence, and our excitement for what lies ahead. And with that, I'll turn it over to Jeff to facilitate our Q&A. Jeff?