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Debt | 9 Months Ended
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Sep. 30, 2025
Debt [Abstract] |
Debt | Debt Credit Facilities Our $2.5 billion unsecured multi-currency revolving credit facility, or Credit Facility, terminates on June 2, 2028. We can issue up to $2 billion of U.S. Dollar denominated commercial paper, and issue up to the equivalent of $500 million in British Pounds or Euro under a Euro commercial paper program. In addition, certain of our international subsidiaries have uncommitted credit lines that are guaranteed by Omnicom, aggregating $540.2 million. All of these facilities provide additional liquidity sources for operating capital and general corporate purposes. During the three and nine months ended September 30, 2025 and 2024, there were no drawings under the Credit Facility and no commercial paper issuances. The Credit Facility has a financial covenant that requires us to maintain a Leverage Ratio of consolidated indebtedness to consolidated EBITDA (earnings before interest, taxes, depreciation, amortization and non-cash charges) of no more than 3.5 times for the most recently ended 12-month period. At September 30, 2025, we were in compliance with this covenant as our Leverage Ratio was 2.6 times. The Credit Facility does not limit our ability to declare or pay dividends or repurchase our common stock. Short-Term Debt Short-term debt of $24.1 million and $21.3 million at September 30, 2025 and December 31, 2024, respectively, represented bank overdrafts and short-term borrowings primarily of our international subsidiaries. Due to the short-term nature of this debt, carrying value approximates fair value. Long-Term Debt Long-term debt:
| September 30, 2025 |  | December 31, 2024
3.60% Senior Notes due 2026 | $ | 1,400.0 |  |  | $ | 1,400.0 |
€500 million 0.80% Senior Notes due 2027 | 585.3 |  |  | 520.3 |
2.45% Senior Notes due 2030 | 600.0 |  |  | 600.0 |
4.20% Senior Notes due 2030 | 600.0 |  |  | 600.0 |
€500 million 1.40% Senior Notes due 2031 | 585.3 |  |  | 520.3 |
2.60% Senior Notes due 2031 | 800.0 |  |  | 800.0 |
€600 million 3.70% Senior Notes due 2032 | 702.3 |  |  | 624.5 |
£325 million 2.25% Senior Notes due 2033 | 435.8 |  |  | 407.9 |
5.30% Senior Notes due 2034 | 600.0 |  |  | 600.0 |
Long-Term Debt, Gross | 6,308.7 |  |  | 6,073.0 |
Unamortized discount | (8.8) |  |  | (9.5) |
Unamortized debt issuance costs | (24.4) |  |  | (27.4) |
Unamortized deferred loss from settlement of interest rate swap | (0.3) |  |  | (0.8) |
Long-Term Debt, including current portion | 6,275.2 |  |  | 6,035.3 |
Current portion | (1,399.0) |  |  | — |
Long-Term Debt | $ | 4,876.2 |  |  | $ | 6,035.3 |
The 2.45% Senior Notes due 2030, 4.20% Senior Notes due 2030, 2.60% Senior Notes due 2031 and 5.30% Senior Notes due 2034 are senior unsecured obligations of Omnicom that rank equal in right of payment with all existing and future unsecured senior indebtedness. Omnicom and its wholly owned finance subsidiary, Omnicom Capital Inc., or OCI, are co-obligors under the 3.60% Senior Notes due April 2026, accordingly it has been reclassified to current liabilities on the balance sheet. These notes are a joint and several liability of Omnicom and OCI, and Omnicom unconditionally guarantees OCI’s obligations with respect to the notes. OCI provides funding for our operations by incurring debt and lending the proceeds to our operating subsidiaries. OCI’s assets primarily consist of cash and cash equivalents and intercompany loans made to our operating subsidiaries, and the related interest receivable. There are no restrictions on the ability of OCI or Omnicom to obtain funds from our subsidiaries through dividends, loans, or advances. Such notes are senior unsecured obligations that rank equal in right of payment with all existing and future unsecured senior indebtedness. Omnicom and OCI have, jointly and severally, fully and unconditionally guaranteed the obligations of Omnicom Finance Holdings plc, or OFH, a U.K.-based wholly owned subsidiary of Omnicom, with respect to the €500 million 0.80% Senior Notes due 2027 and the €500 million 1.40% Senior Notes due 2031, and Omnicom has fully and unconditionally guaranteed the obligations of OFH with respect to the €600 million 3.70% Senior Notes due 2032, collectively the Euro Notes. OFH’s assets consist of its investments in several wholly owned finance companies that function as treasury centers, providing funding for various operating companies in Europe, Australia, and other countries in the Asia-Pacific region. The finance companies’ assets consist of cash and cash equivalents and intercompany loans that they make or have made to the operating companies in their respective regions and the related interest receivable. There are no restrictions on the ability of Omnicom, OCI or OFH to obtain funds from their subsidiaries through dividends, loans, or advances. The Euro Notes and the related guarantees are senior unsecured obligations that rank equal in right of payment with all existing and future unsecured senior indebtedness of OFH and each of Omnicom and OCI, as applicable. Omnicom has fully and unconditionally guaranteed the obligations of Omnicom Capital Holdings plc, or OCH, a U.K.-based wholly owned subsidiary of Omnicom, with respect to the £325 million 2.25% Senior Notes due 2033, or the Sterling Notes. OCH’s assets consist of its investments in several wholly owned finance companies that function as treasury centers, providing funding for various operating companies in EMEA, Australia, and other countries in the Asia-Pacific region. The finance companies’ assets consist of cash and cash equivalents and intercompany loans that they make or have made to the operating companies in their respective regions and the related interest receivable. There are no restrictions on the ability of Omnicom or OCH to obtain funds from their subsidiaries through dividends, loans, or advances. The Sterling Notes and the related guarantee are senior unsecured obligations that rank equal in right of payment with all existing and future unsecured senior indebtedness of OCH and Omnicom, respectively.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-8A Reference 2: http://www.xbrl.org/2003/role/disclosureRef 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