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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2018
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
| Quarter Ended September 30, |  | Nine Months Ended September 30,
(dollars in millions, except per share amounts; shares in millions) | 2018 |  | 2017 |  | 2018 |  | 2017
Net income attributable to common shareowners | $ | 1,238 |  |  | $ | 1,330 |  |  | $ | 4,583 |  |  | $ | 4,155 |
Basic weighted average number of shares outstanding | 791.3 |  |  | 788.3 |  |  | 790.6 |  |  | 790.3 |
Stock awards and equity units (share equivalent) | 10.5 |  |  | 8.8 |  |  | 10.1 |  |  | 9.1 |
Diluted weighted average number of shares outstanding | 801.8 |  |  | 797.1 |  |  | 800.7 |  |  | 799.4 |
Earnings Per Share of Common Stock: |  |  |  |  |  |  |
Basic | $ | 1.56 |  |  | $ | 1.69 |  |  | $ | 5.80 |  |  | $ | 5.26 |
Diluted | $ | 1.54 |  |  | $ | 1.67 |  |  | $ | 5.72 |  |  | $ | 5.20 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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