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Earnings Per Share
 6 Months Ended
Jun. 30, 2021
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block] Earnings Per Share
 Quarter Ended June 30,Six Months Ended June 30,
(dollars and shares in millions, except per share amounts)2021202020212020
Net income (loss) attributable to common shareowners:
Income (loss) from continuing operations$1,040 $(3,844)$1,812 $(3,406)
Income (loss) from discontinued operations(8)9 (27)(512)
Net income (loss) attributable to common shareowners$1,032 $(3,835)$1,785 $(3,918)
Basic weighted average number of shares outstanding1,506.4 1,501.3 1,508.7 1,225.4 
Stock awards and equity units (share equivalent)7.1 — 5.0 — 
Diluted weighted average number of shares outstanding1,513.5 1,501.3 1,513.7 1,225.4 
Earnings (Loss) Per Share attributable to common shareowners - Basic:
Income (loss) from continuing operations$0.69 $(2.56)$1.20 $(2.78)
Income (loss) from discontinued operations— 0.01 (0.02)(0.42)
Net income (loss) attributable to common shareowners$0.69 $(2.55)$1.18 $(3.20)
Earnings (Loss) Per Share attributable to common shareowners - Diluted:
Income (loss) from continuing operations$0.69 $(2.56)$1.20 $(2.78)
Income (loss) from discontinued operations(0.01)0.01 (0.02)(0.42)
Net income (loss) attributable to common shareowners$0.68 $(2.55)$1.18 $(3.20)
The computation of diluted earnings per share (EPS) 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 EPS 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 six months ended June 30, 2021, the number of stock awards excluded from the computation was 11.2 million and 19.0 million, respectively. For the quarter and six months ended June 30, 2020, all stock awards were excluded from the computation of diluted EPS because their effect was antidilutive due to the loss from continuing operations, and amounted to 36.6 million and 53.3 million stock awards, respectively.