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Reportable Segments (Tables) | 3 Months Ended
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Mar. 31, 2019
Reportable Segments [Abstract] |
Reportable Segments | ﻿ ﻿ ﻿ ﻿ ﻿ ﻿
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﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Display |  | Optical |  | Specialty |  | Environmental |  | Life |  | All |  |  |
﻿ |  | Technologies |  | Communications |  | Materials |  | Technologies |  | Sciences |  | Other |  | Total
﻿Three months ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿March 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Segment net sales |  | $ | 818 |  | $ | 1,064 |  | $ | 309 |  | $ | 362 |  | $ | 243 |  | $ | 54 |  | $ | 2,850
﻿Depreciation (1) |  | $ | 152 |  | $ | 59 |  | $ | 37 |  | $ | 31 |  | $ | 13 |  | $ | 11 |  | $ | 303
﻿Research, development and engineering expenses (2) |  | $ | 26 |  | $ | 56 |  | $ | 41 |  | $ | 30 |  | $ | 5 |  | $ | 55 |  | $ | 213
﻿Income tax (provision) benefit (3) |  | $ | (55) |  | $ | (39) |  | $ | (13) |  | $ | (15) |  | $ | (8) |  | $ | 19 |  | $ | (111)
﻿Segment net income (loss) (4) |  | $ | 208 |  | $ | 142 |  | $ | 49 |  | $ | 55 |  | $ | 31 |  | $ | (72) |  | $ | 413
﻿ ﻿
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Display |  | Optical |  | Specialty |  | Environmental |  | Life |  | All |  |  |
﻿ |  | Technologies |  | Communications |  | Materials |  | Technologies |  | Sciences |  | Other |  | Total
﻿Three months ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿March 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Segment net sales |  | $ | 745 |  | $ | 886 |  | $ | 278 |  | $ | 322 |  | $ | 232 |  | $ | 50 |  | $ | 2,513
﻿Depreciation (1) |  | $ | 144 |  | $ | 52 |  | $ | 33 |  | $ | 29 |  | $ | 14 |  | $ | 11 |  | $ | 283
﻿Research, development and engineering expenses (2) |  | $ | 23 |  | $ | 49 |  | $ | 39 |  | $ | 29 |  | $ | 5 |  | $ | 57 |  | $ | 202
﻿Income tax (provision) benefit (3) |  | $ | (49) |  | $ | (30) |  | $ | (12) |  | $ | (14) |  | $ | (7) |  | $ | 20 |  | $ | (92)
﻿Segment net income (loss) (4) |  | $ | 185 |  | $ | 109 |  | $ | 46 |  | $ | 52 |  | $ | 27 |  | $ | (74) |  | $ | 345
﻿
| (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) |  | Income tax provision (benefit) reflects a tax rate of 21%.
| (4) |  | 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. Expenses that are not allocated to the segments are included in the reconciliation of reportable segment net income to consolidated net income below.
Reconciliation of Reportable Segment and All Other Net Sales to Consolidated Net Sales | ﻿
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Three months ended
﻿ |  | March 31,
﻿ |  | 2019 |  | 2018
﻿Net sales of reportable segments and All Other |  | $ | 2,850 |  | $ | 2,513
﻿ Impact of foreign currency movements (1) |  |  | (38) |  |  | (13)
﻿Net sales |  | $ | 2,812 |  | $ | 2,500
﻿ (1)This amount primarily represents the impact of foreign currency adjustments in the Display Technologies and Environmental Technologies segments.
Reconciliation of Reportable Segment Net Income to Consolidated Net Income (Loss) | ﻿ ﻿
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Three months ended
﻿ |  | March 31,
﻿ |  | 2019 |  | 2018
﻿Net income of reportable segments |  | $ | 485 |  | $ | 419
﻿Net loss of All Other |  |  | (72) |  |  | (74)
﻿Unallocated amounts: |  |  |  |  |  |
﻿ Impact of foreign currency movements |  |  | (37) |  |  | (31)
﻿ Gain (loss) on foreign currency hedges related to translated earnings |  |  | 184 |  |  | (622)
﻿ Litigation, regulatory and other legal matters |  |  |  |  |  | (136)
﻿ Research, development, and engineering expenses |  |  | (36) |  |  | (39)
﻿ Equity in earnings of affiliated companies (1) |  |  | 26 |  |  | (37)
﻿ Amortization of intangibles |  |  | (29) |  |  | (19)
﻿ Interest expense, net |  |  | (45) |  |  | (39)
﻿ Income tax benefit (provision) |  |  | 35 |  |  | (32)
﻿ Other corporate items |  |  | (12) |  |  | 21
﻿Net income (loss) |  | $ | 499 |  | $ | (589)
﻿ Primarily represents the equity earnings of HSG.

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