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Earnings per Share (Tables)
6 Months Ended
Jun. 30, 2021
Earnings Per Share [Abstract]  
Basic and Diluted Earnings per Common Share
Table 70: Basic and Diluted Earnings Per Common Share
 Three months ended
June 30
Six months ended
June 30
In millions, except per share data2021202020212020
Basic
Net income (loss) from continuing operations$1,103 $(744)$2,929 $15 
Less:
Net income attributable to noncontrolling interests12 22 14 
Preferred stock dividends48 55 105 118 
Preferred stock discount accretion and redemptions
Net income (loss) from continuing operations attributable to common shareholders1,042 (807)2,800 (119)
Less: Dividends and undistributed earnings allocated to nonvested restricted shares13 
Net income (loss) from continuing operations attributable to basic common shareholders$1,037 $(808)$2,787 $(123)
Net income from discontinued operations attributable to common shareholders$4,399 $4,555 
Less: Undistributed earnings allocated to nonvested restricted shares21 22 
Net income from discontinued operations attributable to basic common shareholders$4,378 $4,533 
Basic weighted-average common shares outstanding427 426 426 428 
Basic earnings (loss) per common share from continuing operations (a)$2.43 $(1.90)$6.54 $(0.29)
Basic earnings per common share from discontinued operations (a)$10.28 $10.60 
Basic earnings per common share (b)$2.43 $8.40 $6.54 $10.33 
Diluted
Net income (loss) from continuing operations attributable to diluted common shareholders
$1,037 $(808)$2,787 $(123)
Net income from discontinued operations attributable to basic common shareholders
$4,378 $4,533 
Less: Impact of earnings per share dilution from discontinued operations
Net income from discontinued operations attributable to diluted common shareholders
$4,377 $4,531 
Basic weighted-average common shares outstanding427 426426 428
Dilutive potential common shares (c)
Diluted weighted-average common shares outstanding427 426 427 428 
Diluted earnings (loss) per common share from continuing operations (a)$2.43 $(1.90)$6.53 $(0.29)
Diluted earnings per common share from discontinued operations (a)$10.28 $10.59 
Diluted earnings per common share (b)$2.43 $8.40 $6.53 $10.32 
(a)Basic and diluted earnings per share under the two-class method are determined on net income reported on the income statement less earnings allocated to nonvested restricted shares and restricted share units with nonforfeitable dividends and dividend rights (participating securities).
(b)For additional information on our policy for not allocating losses to participating securities, see the Earnings Per Common Share section of Note 1 Accounting Policies included in Item 8 of our 2020 Form 10-K.
(c)For periods in which there is a loss from continuing operations, any potential dilutive shares will be anti-dilutive. No potential dilutive shares will be included in the continuing operations, discontinued operations or total earnings per common share calculations, even if overall net income is reported.