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Goodwill and Other Intangible Assets | 9 Months Ended
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Sep. 30, 2018
Goodwill and Other Intangible Assets [Abstract] |
Goodwill and Other Intangible Assets | 9. Goodwill and Other Intangible Assets ﻿ The carrying amount of goodwill by segment for the periods ended September 30, 2018 and December 31, 2017 is as follows (in millions):
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Display |  | Optical |  | Specialty |  | Life |  | All |  |  |
﻿ |  | Technologies |  | Communications |  | Materials |  | Sciences |  | Other |  | Total
﻿Balance at December 31, 2017 |  | $ | 136 |  | $ | 671 |  | $ | 150 |  | $ | 623 |  | $ | 114 |  | $ | 1,694
﻿Acquired goodwill (1) |  |  |  |  |  | 242 |  |  |  |  |  | 2 |  |  |  |  |  | 244
﻿Measurement period adjustment |  |  |  |  |  | 11 |  |  |  |  |  |  |  |  |  |  |  | 11
﻿Foreign currency translation adjustment |  |  | (4) |  |  | (7) |  |  |  |  |  | (6) |  |  | (2) |  |  | (19)
﻿Balance at September 30, 2018 |  | $ | 132 |  | $ | 917 |  | $ | 150 |  | $ | 619 |  | $ | 112 |  | $ | 1,930
﻿ (1)The Company completed the acquisition of 3M’s Communications Market Division in the Optical Communications segment during the second quarter of 2018. Refer to Note 8 (Acquisitions) to the Consolidated Financial Statements for additional information on this acquisition. ﻿ Corning’s gross goodwill balances for the periods ended September 30, 2018 and December 31, 2017 were $8.4 and $8.2 billion, respectively. Accumulated impairment losses were $6.5 billion for the periods ended September 30, 2018 and December 31, 2017, and were generated primarily through goodwill impairments related to the Optical Communications segment. ﻿ Other intangible assets are as follows (in millions): ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | September 30, 2018 |  | December 31, 2017
﻿ |  |  |  |  | Accumulated |  |  |  |  |  |  |  | Accumulated |  |  |
﻿ |  | Gross |  | amortization |  | Net |  | Gross |  | amortization |  | Net
﻿Amortized intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Patents, trademarks, and trade names |  | $ | 465 |  | $ | 198 |  | $ | 267 |  | $ | 382 |  | $ | 188 |  | $ | 194
﻿Customer lists and other |  |  | 1,299 |  |  | 257 |  |  | 1,042 |  |  | 884 |  |  | 209 |  |  | 675
﻿Total |  | $ | 1,764 |  | $ | 455 |  | $ | 1,309 |  | $ | 1,266 |  | $ | 397 |  | $ | 869
﻿ Corning’s amortized intangible assets are primarily related to the Optical Communications and Life Sciences segments. The net carrying amount of intangible assets increased during the first nine months of 2018, primarily due to the acquisition of 3M’s Communications Market Division of $511 million and other acquisition of $7 million of other intangible assets, offset by amortization of $6 8 million and foreign currency translation adjustments of $10 million. ﻿ Amortization expense related to all intangible assets is estimated to be $11 2 million annually for 2019, $111 million annually for 20 20, $110 million annually for 2021 and 2022, and $109 million annually for 2023.

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- Definition The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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