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Reportable Segments (Tables) | 12 Months Ended
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Dec. 31, 2018
Reportable Segments [Abstract] |
Reportable Segments |
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﻿ | Display Technologies |  | Optical Communications |  | Specialty Materials |  | Environmental Technologies |  | Life Sciences |  | All Other |  | Total
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﻿For the year ended December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Segment net sales | $ | 3,276 |  | $ | 4,192 |  | $ | 1,479 |  | $ | 1,289 |  | $ | 946 |  | $ | 216 |  | $ | 11,398
﻿Depreciation (1) | $ | 585 |  | $ | 218 |  | $ | 136 |  | $ | 119 |  | $ | 50 |  | $ | 38 |  | $ | 1,146
﻿Research, development and engineering expenses (2) | $ | 106 |  | $ | 212 |  | $ | 163 |  | $ | 118 |  | $ | 20 |  | $ | 231 |  | $ | 850
﻿Income tax (provision) benefit | $ | (221) |  | $ | (163) |  | $ | (83) |  | $ | (55) |  | $ | (31) |  | $ | 76 |  | $ | (477)
﻿Net income (loss) (3) | $ | 835 |  | $ | 592 |  | $ | 313 |  | $ | 208 |  | $ | 117 |  | $ | (281) |  | $ | 1,784
﻿Investment in affiliated companies, at equity | $ | 131 |  | $ | 3 |  | $ | 6 |  |  |  |  | $ | 1 |  | $ | 171 |  | $ | 312
﻿Segment assets (4) | $ | 8,794 |  | $ | 3,042 |  | $ | 2,176 |  | $ | 1,633 |  | $ | 585 |  | $ | 1,018 |  | $ | 17,248
﻿Capital expenditures | $ | 755 |  | $ | 417 |  | $ | 242 |  | $ | 273 |  | $ | 55 |  | $ | 329 |  | $ | 2,071
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﻿For the year ended December 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Segment net sales | $ | 3,137 |  | $ | 3,545 |  | $ | 1,403 |  | $ | 1,106 |  | $ | 879 |  | $ | 188 |  | $ | 10,258
﻿Depreciation (1) | $ | 534 |  | $ | 193 |  | $ | 129 |  | $ | 124 |  | $ | 52 |  | $ | 45 |  | $ | 1,077
﻿Research, development and engineering expenses (2) | $ | 88 |  | $ | 174 |  | $ | 152 |  | $ | 113 |  | $ | 22 |  | $ | 211 |  | $ | 760
﻿Income tax (provision) benefit | $ | (234) |  | $ | (129) |  | $ | (79) |  | $ | (44) |  | $ | (25) |  | $ | 69 |  | $ | (442)
﻿Net income (loss) (3) | $ | 888 |  | $ | 469 |  | $ | 301 |  | $ | 165 |  | $ | 95 |  | $ | (259) |  | $ | 1,659
﻿Investment in affiliated companies, at equity | $ | 134 |  | $ | 2 |  | $ | 3 |  |  |  |  |  |  |  | $ | 140 |  | $ | 279
﻿Segment assets (4) | $ | 8,662 |  | $ | 2,599 |  | $ | 2,155 |  | $ | 1,402 |  | $ | 538 |  | $ | 824 |  | $ | 16,180
﻿Capital expenditures | $ | 795 |  | $ | 505 |  | $ | 223 |  | $ | 157 |  | $ | 42 |  | $ | 156 |  | $ | 1,878
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﻿For the year ended December 31, 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Segment net sales | $ | 3,288 |  | $ | 3,005 |  | $ | 1,124 |  | $ | 1,032 |  | $ | 839 |  | $ | 152 |  | $ | 9,440
﻿Depreciation (1) | $ | 598 |  | $ | 175 |  | $ | 109 |  | $ | 129 |  | $ | 58 |  | $ | 50 |  | $ | 1,119
﻿Research, development and engineering expenses (2) | $ | 45 |  | $ | 147 |  | $ | 126 |  | $ | 102 |  | $ | 24 |  | $ | 191 |  | $ | 635
﻿Income tax (provision) benefit | $ | (253) |  | $ | (96) |  | $ | (61) |  | $ | (42) |  | $ | (24) |  | $ | 55 |  | $ | (421)
﻿Net income (loss) (3) | $ | 953 |  | $ | 351 |  | $ | 228 |  | $ | 159 |  | $ | 90 |  | $ | (220) |  | $ | 1,561
﻿Investment in affiliated companies, at equity | $ | 41 |  | $ | (1) |  |  |  |  | $ | 32 |  |  |  |  | $ | 252 |  | $ | 324
﻿Segment assets (4) | $ | 8,032 |  | $ | 2,010 |  | $ | 1,604 |  | $ | 1,267 |  | $ | 504 |  | $ | 750 |  | $ | 14,167
﻿Capital expenditures | $ | 464 |  | $ | 245 |  | $ | 120 |  | $ | 97 |  | $ | 39 |  | $ | 56 |  | $ | 1,021
﻿
| (1) |  | Depreciation expense for Corning’s reportable segments includes an allocation of depreciation of corporate property not specifically identifiable to a segment.
| (2) |  | Research, development and engineering expenses include direct project spending that is identifiable to a segment.
| (3) |  | Many of Corning’s administrative and staff functions are performed on a centralized basis. Where practicable, Corning charges these expenses to segments based upon the extent to which each business uses a centralized function. Other staff functions, such as corporate finance, human resources and legal are allocated to segments, primarily as a percentage of sales.
| (4) |  | Segment assets include inventory, accounts receivable, property, plant and equipment, net of accumulated depreciation, and associated equity companies and cost investments.
Reconciliation of Reportable Segment and All Other Net Sales to Consolidated Net Sales) |
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﻿ |  | Years ended December 31,
﻿ |  | 2018 |  | 2017 |  | 2016
﻿Net sales of reportable segments and All Other |  | $ | 11,398 |  | $ | 10,258 |  | $ | 9,440
﻿ Impact of foreign currency movements (1) |  |  | (108) |  |  | (142) |  |  | (50)
﻿Net sales |  | $ | 11,290 |  | $ | 10,116 |  | $ | 9,390
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| (1) |  | This amount primarily represents the impact of foreign currency adjustments in the Display Technologies segment.
Reconciliation of Reportable Segment Net Income to Consolidated Net Income | ﻿
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﻿ | Years ended December 31,
﻿ | 2018 |  | 2017 |  | 2016
﻿Net income of reportable segments | $ | 2,065 |  | $ | 1,918 |  | $ | 1,781
﻿Net loss of All Other |  | (281) |  |  | (259) |  |  | (220)
﻿Unallocated amounts: |  |  |  |  |  |  |  |
﻿ Impact of foreign currency movements not included in segment net income (loss) |  | (157) |  |  | (168) |  |  | (85)
﻿ Loss on foreign currency hedges related to translated earnings |  | (78) |  |  | (121) |  |  | (448)
﻿ Translation loss on Japanese yen-denominated debt |  | (18) |  |  | (14) |  |  |
﻿ Litigation, regulatory and other legal matters |  | (124) |  |  | 12 |  |  | (153)
﻿ Research, development, and engineering expense |  | (134) |  |  | (106) |  |  | (107)
﻿ Equity in earnings of affiliated companies (1) |  | 390 |  |  | 352 |  |  | 288
﻿ Amortization of intangibles |  | (93) |  |  | (75) |  |  | (64)
﻿ Interest expense, net |  | (149) |  |  | (110) |  |  | (127)
﻿ Pension mark to market |  | (145) |  |  | (22) |  |  | (67)
﻿ Gain on realignment of equity investment |  |  |  |  |  |  |  | 2,676
﻿ Income tax benefit (provision) |  | 42 |  |  | (1,709) |  |  | 424
﻿ Other corporate items |  | (252) |  |  | (195) |  |  | (203)
﻿Net income (loss) | $ | 1,066 |  | $ | (497) |  | $ | 3,695
﻿ (1)Primarily represents the equity earnings of HSG in 2018 and 2017, and Dow Corning in 2016.
Reconciliation of Reportable Segment Assets to Consolidated Total Assets | ﻿
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﻿ | December 31,
﻿ | 2018 |  | 2017 |  | 2016
﻿Total assets of reportable segments | $ | 16,230 |  | $ | 15,356 |  | $ | 13,417
﻿Non-reportable segments |  | 1,018 |  |  | 824 |  |  | 750
﻿Unallocated amounts: |  |  |  |  |  |  |  |
﻿Current assets (1) |  | 3,065 |  |  | 5,315 |  |  | 6,070
﻿Investments (2) |  | 64 |  |  | 61 |  |  | 12
﻿Property, plant and equipment, net (3) |  | 1,928 |  |  | 1,628 |  |  | 1,681
﻿Other non-current assets (4) |  | 5,200 |  |  | 4,310 |  |  | 5,969
﻿Total assets | $ | 27,505 |  | $ | 27,494 |  | $ | 27,899
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| (1) |  | Includes current corporate assets, primarily cash, short-term investments, current portion of long-term derivative assets and deferred taxes.
| (2) |  | Primarily represents corporate equity and cost basis investments. Asset balance does not include equity method affiliate liability balance of $105 and $241 for HSG in 2017 and 2016, respectively.
| (3) |  | Represents corporate property not specifically identifiable to an operating segment.
| (4) |  | Includes non-current corporate assets, pension assets, long-term derivative assets and deferred taxes.
Selected Financial Information On Product Lines and Reportable Segments |
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﻿ | Years Ended December 31,
﻿Revenues from External Customers | 2018 |  | 2017 |  | 2016
﻿Display Technologies | $ | 3,276 |  | $ | 3,137 |  | $ | 3,288
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﻿Optical Communications |  |  |  |  |  |  |  |
﻿Carrier network |  | 3,084 |  |  | 2,720 |  |  | 2,274
﻿Enterprise network |  | 1,108 |  |  | 825 |  |  | 731
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﻿Total Optical Communications |  | 4,192 |  |  | 3,545 |  |  | 3,005
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﻿Specialty Materials |  |  |  |  |  |  |  |
﻿Corning Gorilla Glass |  | 1,069 |  |  | 1,044 |  |  | 807
﻿Advanced optics and other specialty glass |  | 410 |  |  | 359 |  |  | 317
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﻿Total Specialty Materials |  | 1,479 |  |  | 1,403 |  |  | 1,124
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﻿Environmental Technologies |  |  |  |  |  |  |  |
﻿Automotive and other |  | 719 |  |  | 627 |  |  | 585
﻿Diesel |  | 570 |  |  | 479 |  |  | 447
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﻿Total Environmental Technologies |  | 1,289 |  |  | 1,106 |  |  | 1,032
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﻿Life Sciences |  |  |  |  |  |  |  |
﻿Labware |  | 536 |  |  | 524 |  |  | 512
﻿Cell culture products |  | 410 |  |  | 355 |  |  | 327
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﻿Total Life Science |  | 946 |  |  | 879 |  |  | 839
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﻿All Other |  | 216 |  |  | 188 |  |  | 152
﻿ | $ | 11,398 |  | $ | 10,258 |  | $ | 9,440
﻿
Information Concerning Principal Geographic Areas | ﻿
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﻿ | 2018 |  | 2017 |  | 2016
﻿ | Net sales (2) |  | Long-lived assets (1) |  | Net sales (2) |  | Long-lived assets (1) |  | Net sales (2) |  | Long-lived assets (1)
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﻿North America |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿United States | $ | 3,569 |  | $ | 7,383 |  | $ | 3,146 |  | $ | 6,605 |  | $ | 2,625 |  | $ | 6,318
﻿Canada |  | 296 |  |  | 127 |  |  | 287 |  |  | 144 |  |  | 282 |  |  | 142
﻿Mexico |  | 53 |  |  | 200 |  |  | 27 |  |  | 174 |  |  | 50 |  |  | 134
﻿Total North America |  | 3,918 |  |  | 7,710 |  |  | 3,460 |  |  | 6,923 |  |  | 2,957 |  |  | 6,594
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﻿Asia Pacific |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Japan |  | 415 |  |  | 1,148 |  |  | 476 |  |  | 1,119 |  |  | 455 |  |  | 1,008
﻿Taiwan |  | 921 |  |  | 2,326 |  |  | 900 |  |  | 2,357 |  |  | 857 |  |  | 2,347
﻿China |  | 2,716 |  |  | 2,811 |  |  | 2,247 |  |  | 2,125 |  |  | 2,092 |  |  | 1,524
﻿Korea |  | 1,259 |  |  | 3,736 |  |  | 1,337 |  |  | 3,869 |  |  | 1,464 |  |  | 3,413
﻿Other |  | 436 |  |  | 85 |  |  | 378 |  |  | 71 |  |  | 363 |  |  | 167
﻿Total Asia Pacific |  | 5,747 |  |  | 10,106 |  |  | 5,338 |  |  | 9,541 |  |  | 5,231 |  |  | 8,459
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﻿Europe |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Germany |  | 451 |  |  | 508 |  |  | 426 |  |  | 236 |  |  | 363 |  |  | 154
﻿Other |  | 905 |  |  | 1,155 |  |  | 701 |  |  | 1,108 |  |  | 617 |  |  | 1,125
﻿Total Europe |  | 1,356 |  |  | 1,663 |  |  | 1,127 |  |  | 1,344 |  |  | 980 |  |  | 1,279
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﻿All Other |  | 377 |  |  | 40 |  |  | 333 |  |  | 46 |  |  | 272 |  |  | 44
﻿Total | $ | 11,398 |  | $ | 19,519 |  | $ | 10,258 |  | $ | 17,854 |  | $ | 9,440 |  | $ | 16,376
﻿
| (1) |  | Long-lived assets primarily include investments, plant and equipment, goodwill and other intangible assets.
| (2) |  | Net sales are attributed to countries based on location of customer.

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