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Goodwill | 6 Months Ended
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Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill | Goodwill A summary of the changes in the carrying amount of goodwill, by operating segment, in the six months ended June 30, 2018, is shown below (in millions):
| Seating |  | E-Systems |  | Total
Balance at January 1, 2018 | $ | 1,274.4 |  |  | $ | 126.9 |  |  | $ | 1,401.3 |
Affiliate transaction | — |  |  | 20.9 |  |  | 20.9 |
Foreign currency translation and other | (17.1 | ) |  | 16.3 |  |  | (0.8 | )
Balance at June 30, 2018 | $ | 1,257.3 |  |  | $ | 164.1 |  |  | $ | 1,421.4 |
Goodwill is not amortized but is tested for impairment on at least an annual basis. Impairment testing is required more often than annually if an event or circumstance indicates that an impairment is more likely than not to have occurred. In conducting its annual impairment testing, the Company may first perform a qualitative assessment of whether it is more likely than not that a reporting unit’s fair value is less than its carrying amount. If not, no further goodwill impairment testing is required. If it is more likely than not that a reporting unit’s fair value is less than its carrying amount, or if the Company elects not to perform a qualitative assessment of a reporting unit, the Company then compares the fair value of the reporting unit to the related net book value. If the net book value of a reporting unit exceeds its fair value, an impairment loss is measured and recognized. The Company conducts its annual impairment testing as of the first day of its fourth quarter. The Company does not believe that there were any indicators that would have resulted in goodwill impairment charges as of June 30, 2018. The Company will, however, continue to assess the impact of significant events or circumstances on its recorded goodwill. For further information related to the affiliate transaction, see Note 5, "Long-Term Assets."

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- Definition The entire disclosure for goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2144439 + Details
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