Thank you, PJ, and good morning. Let me begin by thanking UPSers for doing what they do better than anyone, and that's deliver industry-leading service. Through the first quarter, UPSers continued to execute our strategy by focusing on growth and efficiency and exemplified our purpose of moving our world forward by delivering what matters. Moving to our results, the first quarter turned out as we expected, starting with a decline in average daily volume. U.S. average daily volume, or ADV, declined year-over-year, but the rate of decline slowed as the quarter progressed, ending with March down less than 1%. And on a sequential basis, the ADV decline rate in the first quarter showed marked improvement compared to the fourth quarter of 2023. This improving performance is primarily due to the efforts of our sales team to win and pull through new volume into our network. Outside of the U.S., the ADV decline rate also improved sequentially compared to the fourth quarter of last year, and we saw pockets of export growth in certain markets and lanes. For the first quarter, consolidated revenue was $21.7 billion, a decline of 5.3% versus last year. Operating profit was $1.7 billion, down 31.5% compared to last year, due for the most part to higher labor costs associated with the first year of our Teamster’s contract. Consolidated operating margin was 8%. Our operating profit performance was a bit better than we expected due to higher productivity. At our Investor and Analyst Day last month, we shared our three-year targets and how we intend to reach them under our Better and Bolder approach. We are reimagining our network through Network of the Future, and we are leaning into the parts of the market that value our end-to-end integrated network. For example, we recently announced that UPS will become the primary air cargo provider for the United States Postal Service. Under this contract, we will move most of the USPS’ air cargo within the United States. The USPS air cargo business fits beautifully with our strategy to grow our B2B business. To win, we put together an innovative and differentiated solution that leverages our integrated network and existing assets. The USPS air cargo business will contribute to top-line growth and be accretive to consolidated and U.S. domestic operating margins. Brian will share more details, including what to expect during the transition period and where this will show up in our financial reporting. Moving to our strategic update, through our customer-first, people-led, innovation-driven strategy, we are investing to grow in the premium parts of the market and drive efficiency. Let me give you a few recent examples. Starting with customer-first. Through our on-demand network, we are expanding our addressable market with capabilities like no-box, no-label returns, through Happy Returns, and the convenience of our more than 5,200 UPS store locations. During the first quarter, our overall returns volume in the U.S. increased 1.4%, and Happy Returns more than quadrupled its ADV in the first quarter. Returns are attractive to us for a couple of reasons. First, they are typically B2B movements, and as a result, drive pickup and delivery density. Second, our frictionless offering creates customer loyalty and repeat business. We are also expanding our addressable market with capabilities like big and bulky deliveries through Roadie. In the first quarter, we launched RoadieXD, which adds cross-dock capabilities to RoadieXL. Our cross-dock solution brings the digital and physical together for long-zone deliveries of bulky items, such as grills and furniture, that do not fit in the UPS small package network. This is enabling us to unlock additional revenue opportunities in the highly fragmented $60 billion big and bulky market in the U.S. It's still early days, but this is a large opportunity for us to grow quality revenue and profit and serve the needs of our customers. As we laid out at our Investor Day, our long-term target is to grow our U.S. S&D volume penetration to 40%. DAP, our digital access program, is one of the tools we will use to reach this target. Recently, we enhanced our DAP pricing capabilities by launching a solution we call Fast Lane. With Fast Lane, we can optimize rates and target attractive volume growth, whether it be by partner, by product, or by customer segment, all of which can drive revenue per piece growth. We can even target volume growth by geography to drive density. Prior to Fast Lane, rate and other adjustments in DAP could take months. Now we can make them in a matter of days or even hours. In terms of results, in the first quarter, DAP revenue grew by 3% year-over-year. And in 2024, we expect to generate over $3 billion in global DAP revenue. Speaking of S&D, over the last year, we've gained traction on improving the customer experience across 16 journeys. Take pickups. We redesigned our process and deployed new driver dispatch technology. This resulted in a 74% reduction in pickup concerns and a Net Promoter Score, or NPS, of 48 for this journey, which is an all-time high for UPS. And for our international customers, our next-gen brokerage solution is making it easier for S&Ds to navigate the ins and outs of exporting, as evidenced by a 40% decline in custom brokerage holds since April of 2023. Turning to healthcare, we aim to become the number one complex healthcare logistics provider in the world. Healthcare companies are innovating, and so are we. Our latest example is the opening of LabPort at Worldport, our global air hub in Louisville, Kentucky. LabPort is unique. It's an end-of-the-runway, state-of-the-art facility built specifically for lab customers. By being at Worldport, we can deliver urgent air packages to our lab customers well before the sun comes up, so they can provide diagnostic results by early morning. And in terms of healthcare revenue, in the first quarter, revenue from our healthcare portfolio reached $2.6 billion. Outside the United States, we're continuing to enhance our network to grow our premium international business. Our most recent example is the launch of Next Day flights between Shenzhen, China, and Sydney, Australia. The addition of these flights enables faster import and export movements between 11 Asian markets in Australia. And now, exports from Australia can even reach Europe by the next business day. This enhancement further enables us to serve our customers, particularly those that are in high-tech manufacturing and healthcare, as they are shifting their supply chains in response to changing international trade flows. Now, let's turn to innovation-driven. As we've discussed, Network of the Future includes physical and digital changes that will deliver benefits in the short-term and the long-term. Smart Package, Smart Facility, our RFID solution, is a great digital example. We are moving from a scanning network to a sensing network. Following last year's Phase 1 deployment to our preload operations, this year, we are installing RFID readers in over 40,000 U.S. package cards, with a balance to be completed in 2025. Package card readers will enable us to further reduce our misloads, which will improve efficiency and the customer experience. The physical aspect of Network of the Future has launched, and in the quarter, we continue to close sorts and flow more volume into automated facilities. Most of the Phase 1 major projects we outlined during our Investor Day have begun and are in the contracting and execution phases. Innovation-driven is also about achieving carbon neutrality by 2050. We recently published our 22nd Sustainability Report, and we are well on our way to achieving our goals. In 2023, our Scope 1, 2, and 3 CO2 emissions declined 8.1% compared to 2022. We operate more than 18,000 alternative fuel and advanced technology vehicles in our rolling laboratory. And the use of alternative fuels in our ground operations reached 28.8% last year, keeping us on track to achieve our target of 40% by 2025. Moving to our outlook, we are reaffirming our previously announced 2024 consolidated financial goals. In 2024, we expect to generate consolidated revenue ranging from approximately $92 billion to $94.5 billion and a consolidated operating margin ranging from approximately 10% to 10.6%. Versus last year, we still expect first half earnings to decline and second half earnings to grow as we lap the first year of the Teamster’s contract, and we still expect to exit the year with a U.S. operating margin of 10%. As we move forward, we are staying on strategy and under our Better and Bolder approach, we are pursuing our declarations to become the premium small package provider and logistics partner in the world. With that, thank you for listening. And now I'll turn the call over to Brian.