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Earnings Per Share | 9 Months Ended
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Sep. 30, 2018
Earnings Per Share [Abstract] |
Earnings Per Share [Text Block] | Earnings Per Share
| 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 |
The computation of diluted earnings per share excludes the effect of the potential exercise of stock awards, including stock appreciation rights and stock options, when the average market price of the common stock is lower than the exercise price of the related stock awards during the period because the effect would be anti-dilutive. In addition, the computation of diluted earnings per share excludes the effect of the potential exercise of stock awards when the awards’ assumed proceeds exceed the average market price of the common shares during the period. For the quarter and nine months ended September 30, 2018, the number of stock awards excluded from the computation was approximately 5.0 million and 5.2 million, respectively. For the quarter and nine months ended September 30, 2017, the number of stock awards excluded from the computation was approximately 5.8 million and 6.4 million, respectively.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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