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Changes in Contract Estimates at Completion (Tables) | 3 Months Ended
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Mar. 31, 2021
Accounting Policies [Abstract] |
Schedule of Change in Accounting Estimate | Net EAC adjustments had the following impact on our operating results:
|  | Quarter Ended March 31, |  |
(dollars in millions, except per share amounts) |  | 2021 |  | 2020 |  |  |  |
Operating profit |  | $ | 12 |  |  | $ | 21 |  |  |  |  |
Income from continuing operations attributable to common shareowners(1) |  | 9 |  |  | 16 |  |  |  |  |
Diluted earnings per share from continuing operations attributable to common shareholders (1) |  | $ | 0.01 |  |  | $ | 0.02 |  |  |  |  |
(1) Amounts reflect a U.S. statutory tax rate of 21%, which approximates our 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 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=116846552&loc=d3e777-108305 Reference 2: 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 + Details
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