v3.20.4
Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Numerator for basic earnings per share:      
Net Income (Loss) $ (3,821) $ 14,975 $ 19,953
Less: Net Income Attributable to Noncontrolling Interest (1,355) (1,072) (583)
Net Income (Loss) Attributable to AT&T (5,176) 13,903 19,370
Less: Preferred Stock Dividends (193) (3) 0
Net Income (Loss) Attributable to Common Stock (5,369) 13,900 19,370
Dilutive potential common shares:      
Share-based payment 1 23 21 19
Numerator for diluted earnings per share $ (5,346) $ 13,921 $ 19,389
Denominator for basic earnings per share:      
Weighted-average number of common shares outstanding (in shares) 7,157 7,319 6,778
Dilutive potential common shares:      
Share-based payment (in shares) 26 29 28
Denominator for diluted earnings per share (in shares) 7,183 7,348 6,806
Basic Earnings Per Share Attributable to Common Stock (in dollars per share) $ (0.75) $ 1.90 $ 2.85
Diluted Earnings Per Share Attributable to Common Stock (in dollars per share) $ (0.75) $ 1.89 $ 2.85