Thanks, John. Before reviewing our financial results, please note that our fourth quarter and full year 2025 amounts include Interpublic results for only the month of December 2025. Since John already covered the first few slides, let's now look at an overview of our fourth quarter income statement on Slide 7. The IPG acquisition closed just before Thanksgiving on November 26, 2025. Upon closing, and as John referred to, we immediately began the implementation of our strategic plan. We have separated the impact of several parts of the plan on this slide. We recorded severance and repositioning costs of $1.1 billion related to severance, real estate impairment charges and contract exits. We recorded a loss on planned dispositions of $543 million related to businesses that we are in the process of disposing that were recorded at their net realizable value. And we recorded acquisition-related costs of $187 million related to transaction and integration costs. Note that this does not include any potential gains on the sale of certain businesses in this group because we are not permitted to record gains on Omnicom assets until the transactions are completed. Additionally, any expected gains on the sale of IPG assets were included in the fair value adjustment recorded on the balance sheet at the closing date. Excluding these amounts, adjusted operating income or EBIT in Q4 was $876 million and adjusted EBITA was $929 million and a 16.8% margin, an increase of 10 basis points compared to last year. Net interest expense in the fourth quarter of 2025 increased primarily due to the IPG acquisition and the related exchange of IPG debt into Omnicom debt. Interest income increased slightly in the quarter. The tax rate on our non-GAAP adjusted Q4 pretax income was 25.8%, flat with the prior year non-GAAP adjusted tax rate of 26%. Our effective income tax rate on the reported operating loss was 12.7% compared to a more typical reported tax rate of 26.4% in the prior year. The lower tax rate this quarter reflects the impacts of the lower tax benefit associated with the charges I just discussed relating to severance, repositioning, the planned dispositions and the IPG acquisition-related costs, some of which are not deductible in certain jurisdictions. For planning purposes, we expect a similar tax rate of 26% for 2026. Non-GAAP adjusted net income per diluted share of $2.59 was based on weighted average shares outstanding of 233.8 million, which were up from last year due to shares issued for the IPG acquisition. Note, the additional shares issued for the acquisition were outstanding for 1 month. We closed out the year with 313.1 million shares outstanding as of December 31, 2025. Let's now move to revenue. Given the size of the acquisition of IPG and the scale of the implementation of our integration strategy across service lines, geographies and our operating platforms as well as our plans to reposition the business through disposing of certain parts of our portfolio, we have not included our usual organic revenue growth metrics in our slide deck. Had we calculated organic growth consistent with our prior practice, excluding planned dispositions and assets held for sale, organic growth in Q4 2025 would have been approximately 4%. Slides 8 and 9 show the breakdown of our revenue by discipline and by major markets. The primary driver of year-on-year growth resulted from the addition of IPG effective December 1. Foreign exchange changes increased our revenue in the quarter by approximately 2% and a little less than 1% for the year. We expect FX will continue to be positive in 2026 and assuming recent FX rates stay the same, will benefit our reported revenue for the year in excess of 2%. Regarding revenue by discipline, the Media business performed very well in Q4 as did the Experiential business. On the negative side, during the year, our PR business, excluding the acquisition, experienced negative growth due to the challenging prior year comps from national elections in the U.S. Additionally, although small, our Branding and Execution & Support disciplines continue to be challenged in the current environment. As John mentioned, we have moved quickly to integrate the IPG businesses into our Connected Capability organization through geographic and brand alignments. Given the scale of these integrations as well as our strategy to reposition the portfolio, we do not plan to include our historical organic growth metric slide in our 2026 quarterly presentations. With regards to the planned dispositions, approximately 40% of revenue to be disposed of relates to the Execution & Support and Experiential disciplines, and 25% relates to the Advertising group, which is included in the Media & Advertising discipline. The balance of planned dispositions is spread across the rest of our disciplines. Regarding revenue by region, our businesses in the U.S. had strong growth, led by Media as did our European markets and our businesses in the Middle East. Our businesses in France, the Netherlands and China struggled in Q4, and the Latin America market was strong. Slide 10 is our revenue weighted by industry sector. Given these numbers only include 1 month of IPG and our portfolios are very similar, the comparisons to prior periods only show differences of a point or so in a few categories. Now please turn to Slide 11 for our year-to-date free cash flow summary. The increase relative to last year was driven by the improvement in Omnicom's business over the course of the year and the addition of IPG in December 2025. Our free cash flow definition excludes changes in operating capital. However, our use of operating capital improved throughout the year, and we were positive for the full year. You'll note in the reconciliation on Slide 18 that the change in operating capital was a positive of approximately $700 million, a significant improvement in the change in operating capital of over $900 million from 2024. Approximately $170 million of that improvement resulted from Omnicom's businesses, excluding IPG. The balance reflected the timing of the IPG closing and positive working capital growth from IPG's businesses in the month of December 2025. For the year ended 2025, our primary uses of free cash flow included $550 million of cash paid for dividends to common shareholders, and another $83 million for dividends to noncontrolling interest shareholders. Dividend payments decreased due to an increase in share repurchases during the quarter. This excludes our recent 15% increase in the quarterly dividend to $0.80 per share, which was declared prior to the closing of the acquisition. Capital expenditures were $150 million, roughly in line with last year. Total net acquisition and disposition payments were actually a source of cash of $914 million. This included $1.1 billion of net cash received from the IPG acquisition, which was partially offset by acquisition-related payments of approximately $186 million, including $117 million in payments for acquisitions of additional noncontrolling interests and payments of contingent purchase price obligations on acquisitions completed in prior periods. Finally, our share repurchase activity for the year was $708 million, excluding proceeds from stock plans of $27 million. As of Q3 2025, we had repurchased 312 million of shares. And during Q4, we repurchased 396 million. Slide 12 is a summary of our credit, liquidity and debt maturities. At the end of Q4 2025, the book value of our outstanding debt was $9.1 billion. Legacy Omnicom debt was flat with last year, but we assumed approximately $3 billion of IPG debt. As you are aware, our $1.4 billion April 2026 notes are now classified as current on our balance sheet, and we will be addressing that maturity in the near term. As John mentioned, our Board approved a $5 billion share repurchase program, including a $2.5 billion accelerated share repurchase plan, which we initiated earlier today. We also plan to repurchase an additional $500 million to $1 billion of shares during the balance of 2026 as part of the share authorization program. As a result, we estimate the reduction to our shares outstanding compared to the balance of shares outstanding at December 31, 2025, of 313.1 million shares will decline by approximately 9% to 11% by the end of 2026. With weighted average shares outstanding for the year estimated to be reduced by approximately 7% to 8%. Net interest expense is expected to increase by approximately $210 million in 2026 compared to 2025. The change is primarily driven by higher interest expense, including approximately $125 million from the addition of IPG's long-term debt, including $14 million of noncash interest expense resulting from the fair value adjustment to IPG's debt recorded as a result of the acquisition. We are also estimating an increase of approximately $50 million to $55 million, resulting from the refinancing of our $1.4 billion bond, which has a book effective interest rate of 4.07% and which is due in mid-April, and incremental commercial paper borrowings related to our share buyback program, including the ASR. Together, these items are estimated to increase interest expense by approximately $175 million to $180 million. In addition, interest income on net cash balances is expected to decrease by approximately $30 million, primarily due to lower forecasted short-term interest rates on invested cash. In total, these factors result in a projected increase in net interest expense of approximately $210 million in 2026 compared to Omnicom's prior year 2025 actual amount of $167 million. Please note that the total and net leverage ratios for 2025 reflect the full assumption of IPG's debt, but only 1 month of IPG's EBITA. This results in distorted leverage ratios for the period when calculated directly from our reported financials. However, at December 31, 2025, we were in compliance with the leverage ratio covenant in our credit facility, which makes pro forma adjustments for the acquisition. Comparable calculation of our total debt to pro forma adjusted EBITDA would result in a total leverage ratio of 2.4x for the full year ended December 31, 2025. Lastly, our cash equivalents and short-term investments at the end of the year were $6.9 billion, up $2.5 billion from last year, largely due to the IPG acquisition and the strong performance managing working capital and cash we just discussed. Our liquidity also includes an undrawn $3.5 billion revolving credit facility, which backstops our $3 billion U.S. commercial paper program. Before I hand this call over to Q&A, I would like to take a moment to address a framework for how we plan to forecast for 2026. In the appendix on Slides 22 to 24, we present combined Omnicom and Interpublic income statement data based on each company's reported results for the last 12-month period ended September 30, 2025. These are the last 4 quarters in which both of us operated independently. We also use this combined methodology when we announced the transaction in December 2024. For the LTM September 30, 2025 period, combined revenue was $26.3 billion and combined adjusted EBITA was $4.1 billion. These 2 numbers are very close to published analyst consensus estimates prior to the IPG closing for fiscal year 2025 on a combined basis. Because the combined presentation doesn't reflect our planned dispositions, we've used the estimated disposition revenue amounts on Slide 3 to adjust the combined base, which we plan to use for forecasting 2026. The adjusted total EBITA margin for the businesses we plan to dispose of was approximately 10%. Given the IPG acquisition recently closed, we have not yet completed our 2026 planning process. As a result, we will provide additional details on our expectations regarding revenue growth and EBITA growth for 2026 at our Investor Day on March 12. In closing, we've accomplished a lot in the past year to position Omnicom for sustained future growth. As John said, we have great momentum across the company, including revenue initiatives and cost efficiency initiatives, and we are deploying these benefits through the share buyback program announced today. We understand that there is a lot of material to digest. We look forward to updating you on these topics and some new ones at our Investor Day on March 12. I will now ask the operator to please open the lines up for questions and answers. Thank you.