Goodwill and Intangible AssetsChange in goodwill: | | | | | | | | | | | | | | | Six Months Ended June 30, | | | 2026 | | 2025 | | January 1 | | $ | 18,641.4 | | | $ | 10,677.4 | | | Acquisitions* | | 155.1 | | | 2.4 | | | Noncontrolling interests in acquired businesses | | 13.5 | | | 2.6 | | | Contingent purchase price obligations of acquired businesses | | 13.5 | | | 2.5 | | | Dispositions | | (21.6) | | | (20.9) | | | Foreign currency translation | | (61.2) | | | 337.8 | | June 30 | | $ | 18,740.7 | | | $ | 11,001.8 | |
*The increase in goodwill in the six months ended June 30, 2026 is primarily attributable to adjustments to the preliminary purchase price accounting for the IPG acquisition in November 2025 (see Note 5 to the consolidated financial statements). There were no goodwill impairment charges recorded in the six months ended June 30, 2026 and 2025, and there are no accumulated goodwill impairment charges. We completed our annual goodwill impairment test as of May 1, 2026. The market assumptions used in our assessment reflected the current economic environment (see Note 1 to the consolidated financial statements). Based on the results of our impairment test, we concluded that our goodwill was not impaired at May 1, 2026. Intangible assets: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | June 30, 2026 | | December 31, 2025 | | Gross
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Value | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Trade Names | $ | 922.5 | | | $ | (115.2) | | | $ | 807.3 | | | $ | 929.9 | | | $ | (76.5) | | | $ | 853.4 | | | Customer Relationships | 4,366.8 | | | (643.2) | | | 3,723.6 | | | 4,389.5 | | | (504.1) | | | 3,885.4 | | | Technology and Other | 357.6 | | | (112.2) | | | 245.4 | | | 409.2 | | | (79.6) | | | 329.6 | | | Acquired intangible assets and internally developed strategic platform assets | $ | 5,646.9 | | | $ | (870.6) | | | $ | 4,776.3 | | | $ | 5,728.6 | | | $ | (660.2) | | | $ | 5,068.4 | | | Other purchased and internally developed software | 289.0 | | | (230.8) | | | 58.2 | | | 275.6 | | | (243.0) | | | 32.6 | | | Intangible Assets | $ | 5,935.9 | | | $ | (1,101.4) | | | $ | 4,834.5 | | | $ | 6,004.2 | | | $ | (903.2) | | | $ | 5,101.0 | |
Amortization of intangible assets: | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | 2026 | | 2025 | | 2026 | | 2025 | | Acquired intangible assets and internally developed strategic platform assets | $ | 110.7 | | | $ | 19.8 | | | $ | 221.6 | | | $ | 41.6 | | | Other purchased and internally developed software | 7.0 | | | 4.0 | | | 13.5 | | | 8.0 | | | Amortization Expense | $ | 117.7 | | | $ | 23.8 | | | $ | 235.1 | | | $ | 49.6 | |
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