Annual report pursuant to Section 13 and 15(d)

EARNINGS PER SHARE (Details)

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EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Basic earnings per common share:      
Net income $ 817 $ 1,411 $ 1,393
Preferred stock dividends (100) (74) (70)
Net income available to common shareholders $ 717 $ 1,337 $ 1,323
Average common shares issued and outstanding 1,017,117 1,038,840 1,081,542
Dilutive potential common shares      
Stock options and restricted stock units and awards 10,613 12,994 16,529
Shares held in deferred compensation plans 4,953 4,245 3,511
Dilutive impact of Preferred Stock 0 0 4,403
Other 0 0 0
Dilutive potential common shares: (in shares) 15,566 17,239 24,443
Total diluted average common shares issued and outstanding (in shares) 1,032,683 1,056,079 1,105,985
Basic earnings per common share (in USD per share) $ 0.71 $ 1.29 $ 1.22
Diluted earnings per common share (in USD per share) $ 0.69 $ 1.27 $ 1.20
Stock Option      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Options outstanding to purchase common stock shares having antidilutive effect (in shares) 9,760 5,253 2,307