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Earnings per Common Share
12 Months Ended
Dec. 31, 2022
Earnings Per Share [Abstract]  
Earnings per Common Share Earnings per Common Share
The following table presents the calculation of basic and diluted earnings per common share.
Year ended December 31, ($ in millions, except per share data; shares in thousands) (a)
202220212020
Net income from continuing operations$1,715 $3,065 $1,086 
Preferred stock dividends — Series B(63)(36)— 
Preferred stock dividends — Series C(47)(21)— 
Net income from continuing operations attributable to common stockholders$1,605 $3,008 $1,086 
Loss from discontinued operations, net of tax(1)(5)(1)
Net income attributable to common stockholders$1,604 $3,003 $1,085 
Basic weighted-average common shares outstanding (b)316,690 362,583 375,629 
Diluted weighted-average common shares outstanding (b) (c)318,629 365,180 377,101 
Basic earnings per common share
Net income from continuing operations$5.07 $8.30 $2.89 
Loss from discontinued operations, net of tax (0.01)— 
Net income$5.06 $8.28 $2.89 
Diluted earnings per common share
Net income from continuing operations$5.04 $8.24 $2.88 
Loss from discontinued operations, net of tax (0.01)— 
Net income$5.03 $8.22 $2.88 
(a)Figures in the table may not recalculate exactly due to rounding. Earnings per share is calculated based on unrounded numbers.
(b)Includes shares related to share-based compensation that vested but were not yet issued.
(c)During the year ended December 31, 2020, there were 0.8 million in shares underlying share-based awards excluded because their inclusion would have been antidilutive. There were no antidilutive shares during the years ended December 31, 2022, and 2021.