v3.19.3.a.u2
Earnings (Loss) Per Common Share (Computation Of Basic And Diluted Earnings (Loss) Per Common Share) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Numerator:      
Income from continuing operations $ 1,582 $ 1,568 $ 1,241
Preferred stock dividends (79) (64) (64)
Net Income from Continuing Operations Available to Common Shareholders, Basic 1,503 1,504 1,177
Income from discontinued operations, net of tax 0 191 22
Net income available to common shareholders $ 1,503 $ 1,695 $ 1,199
Denominator:      
Weighted-average common shares outstanding—basic 995 1,092 1,186
Potential common shares 4 10 12
Weighted-average common shares outstanding—diluted 999 1,102 1,198
Earnings per common share from continuing operations:      
Basic $ 1.51 $ 1.38 $ 0.99
Diluted 1.50 1.36 0.98
Earnings (loss) per common share from discontinued operations:      
Basic 0.00 0.18 0.02
Diluted 0.00 0.17 0.02
Earnings per common share:      
Basic 1.51 1.55 1.01
Diluted $ 1.50 $ 1.54 $ 1.00
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 7 6 14