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Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2020
Accounting Policies [Abstract] |
Schedule Of Finite-Lived Intangible Assets Estimated Useful Life Of Asset | The range of estimated useful lives is as follows:
| Years
Collaboration assets | 30
Customer relationships and related programs | 1 to 32
Developed technology | 5 to 25
Patents & trademarks | 4 to 40
Exclusivity assets | 5 to 25
Schedule of Change in Accounting Estimate | Net EAC adjustments had the following impact on our operating results:
|  | Quarter Ended September 30, |  |  |  | Nine Months Ended September 30, |  |
(dollars in millions, except per share amounts) |  | 2020 |  | 2019 |  | 2020 |  | 2019
Operating profit (loss) |  | $ | (462) |  |  | $ | 4 |  |  | $ | (592) |  |  | $ | (77) |
Income (loss) from continuing operations attributable to common shareowners(1) |  | (365) |  |  | 3 |  |  | (468) |  |  | (61) |
Diluted earnings (loss) per share from continuing operations attributable to common shareholders (1) |  | $ | (0.24) |  |  | $ | — |  |  | $ | (0.36) |  |  | $ | (0.07) |
(1) Amounts reflect a U.S. statutory tax rate of 21%, which approximates our effective tax rate on our EAC adjustments.

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- Definition Tabular disclosure of the change in an accounting estimate, including a change that occurs in an interim period. If a change in accounting estimate affects several future periods (for example, a change in the service life of a depreciable asset) disclose the effect on income from continuing operations, net income (or other appropriate captions of changes in the applicable net assets or performance indicator), and any related per-share amounts of the current period. Disclosure of the effects of a change in an accounting estimate that occurs in the ordinary course of business (such as uncollectible accounts or inventory obsolescence) is not required, unless the effect is material. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.10-01.(a)(5)) -URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e777-108305 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22595-107794 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 45 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=115929471&loc=d3e21843-107793 + Details
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