Thank you, Carol, and good morning, everyone. This morning, I'll cover our first quarter results. Then I'll give an update on the Amazon glide down and our network reconfiguration and cost-out efforts. I'll wrap up with our financial outlook for the remainder of 2026. Moving to our results. Execution across our business was strong with results coming in above our expectations. Starting with our consolidated performance. In the first quarter, revenue was $21.2 billion, and operating profit was $1.3 billion. Consolidated operating margin was 6.2% and diluted earnings per share were $1.07. Now moving to our segment performance. U.S. domestic remained focused on revenue quality while executing our Amazon glide down and network reconfiguration initiatives. These strategic actions drove SMB average daily volume growth and strong year-over-year revenue per piece growth. For the quarter, total U.S. average daily volume was down 8% versus the first quarter of last year. Nearly 2/3 of the decline came from the glidedown of Amazon volume and our deliberate actions to remove lower-yielding e-commerce volume from our network. Total air average daily volume was down 8.9% year-over-year including the guide down of Amazon volume. Ground average daily volume was down 7.9% compared to the first quarter of 2025. Moving to customer mix. SMB average daily volume increased 1.6% year-over-year, driven by high-tech, health care and automotive customers. In the first quarter, SMBs made up 34.5% of total U.S. volume marking the highest SMB penetration in our history. Looking at B2B, while average daily volume was down 5.1% year-over-year, it represented 45.2% of our total U.S. volume which was a 140 basis point improvement versus the first quarter of last year and was our highest first quarter B2B penetration in 6 years. Our continued focus on revenue quality and a more premium U.S. volume mix has delivered several consecutive quarters of product and customer mix improvement, reinforcing that our strategy is working. Moving to revenue. For the first quarter, U.S. domestic generated revenue of $14.1 billion. This was a decrease of 2.3% year-over-year against an ADV decline of 8% with strong revenue per piece growth of 6.5%, largely offsetting lower volume. Breaking down the components of the 6.5% revenue per piece improvement. Base rates and package characteristics increased the revenue per piece growth rate by 340 basis points. Customer and product mix improvements increased the revenue per piece growth rate by 200 basis points. The remaining 110 basis point increase was due to changes in fuel price. Turning to cost. In the first quarter, total expense in U.S. domestic was nearly flat. While we delivered higher productivity and continue to make progress on the Amazon glidedown, those benefits were partially offset by short-term cost pressures in the first quarter. As Carol mentioned, these included temporary third-party lease expense to cover capacity constraints from retiring our fleet of MD11 aircraft, transition costs and excess operational staffing related to ground saver, and the combination of inclement weather costs and higher casualty expense. Combined, these pressures totaled about $350 million in additional expense for the first quarter. Cost per piece in the first quarter increased 9.5% year-over-year. The U.S. Domestic segment delivered $565 million in operating profit and operating margin was 4%, including a 250 basis point negative impact from the short-term cost pressures. These cost pressures are largely behind us as we move into the final months of the execution of our Amazon glidedown and network reconfiguration initiatives. Moving to our International segment. In the first quarter, revenue grew across all regions, driven by strong revenue quality and our focus on premium markets. Plus, we saw signs of recovery in trade length shifts stemming from the 2025 trade policy changes. Additionally, with the onset of the conflict in the Middle East, we adjusted our network and continue to serve our global customers throughout the first quarter. In the first quarter, total international average daily volume declined 6%. International domestic ADV decreased 6.6% compared to last year, led by a decline in Europe, that was partially offset by growth in Canada. Like in the U.S., we saw improvement in customer mix with SMB penetration reaching over 60%. On the export side, average daily volume in the first quarter decreased 5.5% year-over-year led by declines on U.S. destination lanes resulting from the pull forward of purchases in the first quarter of last year, spurred by changes in trade policy. U.S. imports in total were down 16.4% year-over-year led by a 22.5% ADV decline from Europe to the U.S. The China to the U.S. Lane, which is our most profitable trade lane was lower by 18.3% compared to last year. But as we have said before, with changes in trade policies, we see that trade doesn't stop, it moves somewhere else, and we continue to see volume growth in other parts of the world. Turning to revenue. In the first quarter, International generated revenue of $4.5 billion, up 3.8% from last year, driven by strong revenue per piece growth Operating profit in the International segment was $551 million, down $103 million year-over-year, primarily due to trade policy changes. International operating margin in the first quarter was 12.1%. Looking at Supply Chain Solutions. Supply Chain Solutions made strong progress during the first quarter, highlighted by the doubling of operating profit year-over-year, driven by improvements across business units. In the first quarter, revenue was $2.5 billion, lower than last year by $176 million. Logistics revenue was down year-over-year, driven by lower revenue in Mail Innovations. This was partially offset by revenue growth in Healthcare Logistics, reflecting market conditions, air and ocean forwarding revenue was down year-over-year. And UPS Digital, which includes Roadie and Happy Returns, delivered another consecutive quarter of revenue growth, with revenue up 19.9% compared to the first quarter of 2025. In the first quarter, Supply Chain Solutions generated operating profit of $206 million, an increase of $108 million year-over-year. Operating margin was 8.1%, up 450 basis points compared to last year. Lastly, looking at cash. In the first quarter, we generated $2.2 billion in cash from operations. Now let me provide an update on our Amazon glidedown, cost out and network reconfiguration efforts from the first quarter. Starting with variable cost. Total operational hours paced down with volume in the first quarter, and we're on track to reach our 2026 reduction target of 25 million hours versus last year. Looking at semi variable costs. By the end of the quarter, we reduced operational positions by nearly 25,000 compared to the first quarter of last year. In addition, the Driver Choice program that we initiated during the quarter is expected to reduce full-time driver positions by approximately 7,500 over time, putting us firmly on target to reach our reduction goal of 30,000 operational positions this year. And moving to our fixed cost bucket, we completed the closure of 23 buildings during the first quarter. We are planning to close an additional 27 buildings this year, most of which will be closed in the second quarter. We are pleased with the progress that we are making on our Amazon glidedown and network reconfiguration initiatives and are on track to achieve our targeted $3 billion in savings in 2026. Moving to our 2026 financial outlook. While the macroeconomic environment is different now compared to our expectations at the beginning of the year, we have been quick to adjust to the changing conditions and we're continuing to closely monitor the broader impacts across the global economy. As Carol stated, we are reaffirming our full year 2026 consolidated financial target. We are on track to generate revenue of approximately $89.7 billion with an operating margin of approximately 9.6% and diluted earnings per share expected to be about flat to 2025. The conflict in the Middle East in March drove an immediate spike in fuel costs. Our fuel surcharges are linked to published fuel benchmarks and adjust with fuel prices on a weekly basis. And we expect these surcharges to provide coverage as fuel prices continue to fluctuate. Now let me add color on the segment. Looking at U.S. domestic, full year 2026 revenue is still expected to be approximately flat year-over-year. We expect ADV to be down mid-single digits year-over-year due to our actions with Amazon which will be offset by a strong revenue per piece growth rate in the mid-single digits. Full year operating margin is still expected to be flat to 2025. Looking at the second quarter of this year compared to the first quarter, the USPS transition has been completed. The Amazon glidedown and network reconfiguration will wrap up by the end of June. We are leasing fewer replacement aircraft to 767 deliveries continue, and premium volume is expected to further improve mix. As a result, we expect revenue to be up low single digits and operating margin to be between 7.5% and 8.5%. Moving to the International segment and starting with the full year. We still anticipate revenue growth in the low single digits year-over-year, driven by a solid increase in revenue per piece. Operating margin in the International segment is expected to be in the mid-teens. Looking specifically at International in the second quarter, we will lap tough comparisons from changes in trade policy, benefit from normal seasonal uplift and continue to realize savings from our air network cost actions. As a result, we expect low single-digit revenue growth and an operating margin between 13% and 14%. And in Supply Chain Solutions for the full year 2026, we still expect revenue to be up high single digits, which includes revenue from our Andlauer acquisition and operating margin in SCS is expected to be in the low double digits. Looking at the second quarter, we expect momentum from the first quarter to continue, and we expect revenue in SES to be up low single digits year-over-year and operating margin between 9.5% and 10.5%. Now let's turn to our expectations for cash and the balance sheet. Capital expenditures are still expected to be about $3 billion, and we plan to make our annual pension contribution of $1.3 billion. We expect free cash flow to be approximately $5.5 billion, including onetime payments for the Driver Choice program. Lastly, we are still planning to pay out around $5.4 billion in dividends in 2026, subject to Board approval. As we near completion of our Amazon glidedown and network reconfiguration initiative, we will enter the second half of this year with a more agile and more automated network. Our focus is on premium volume and revenue quality and will grow in the best parts of the market. Taken together, these actions set us up for operating margin expansion and greater operational agility. With that, operator, please open the lines for questions.