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Goodwill (Tables) | 6 Months Ended
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Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes in Carrying Amounts of Goodwill by Segment | The changes in the carrying amounts of goodwill by segment were as follows:
| EIG |  | EMG |  | Total
| (In millions)
Balance at December 31, 2020 | $ | 3,050.3 |  |  | $ | 1,174.6 |  |  | $ | 4,224.9 |
Goodwill acquired | 916.9 |  |  | 5.9 |  |  | 922.8 |
Purchase price allocation adjustments and other | 1.9 |  |  | — |  |  | 1.9 |
Foreign currency translation adjustments | (6.1) |  |  | (3.7) |  |  | (9.8) |
Balance at June 30, 2021 | $ | 3,963.0 |  |  | $ | 1,176.8 |  |  | $ | 5,139.8 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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