| Quarterly Financial Information (Unaudited) [Text Block] |
NOTE 23. QUARTERLY FINANCIAL INFORMATION (UNAUDITED) The following tables represent our quarterly financial results: | | 2019 Calendar Quarter | | | | | | First1 | | Second1 | | Third1 | | Fourth1,2 | | Annual | Total Operating Revenues | $ | 44,827 | | $ | 44,957 | | $ | 44,588 | | $ | 46,821 | | $ | 181,193 | Operating Income | | 7,233 | | | 7,500 | | | 7,901 | | | 5,321 | | | 27,955 | Net Income | | 4,348 | | | 3,974 | | | 3,949 | | | 2,704 | | | 14,975 | Net Income Attributable to AT&T | | 4,096 | | | 3,713 | | | 3,700 | | | 2,394 | | | 13,903 | Basic Earnings Per Share | | | | | | | | | | | | | | | Attributable to Common Stock3 | $ | 0.56 | | $ | 0.51 | | $ | 0.50 | | $ | 0.33 | | $ | 1.90 | Diluted Earnings Per Share | | | | | | | | | | | | | | | Attributable to Common Stock3 | $ | 0.56 | | $ | 0.51 | | $ | 0.50 | | $ | 0.33 | | $ | 1.89 | Stock Price | | | | | | | | | | | | | | | High | $ | 31.64 | | $ | 33.55 | | $ | 38.75 | | $ | 39.70 | | | | Low | | 28.30 | | | 30.05 | | | 31.52 | | | 36.40 | | | | Close | | 31.36 | | | 33.51 | | | 37.84 | | | 39.08 | | | | 1 | Includes actuarial gains and losses on pension and postretirement benefit plans (Note 15). | 2 | Includes an asset abandonment charge (Note 7). | 3 | Quarterly earnings per share impacts may not add to full-year earnings per share impacts due to the difference in weighted-average | | common shares for the quarters versus the weighted-average common shares for the year. |
| | 2018 Calendar Quarter | | | | | | First1 | | Second1 | | Third | | Fourth1 | | Annual | Total Operating Revenues | $ | 38,038 | | $ | 38,986 | | $ | 45,739 | | $ | 47,993 | | $ | 170,756 | Operating Income | | 6,201 | | | 6,466 | | | 7,269 | | | 6,160 | | | 26,096 | Net Income | | 4,759 | | | 5,248 | | | 4,816 | | | 5,130 | | | 19,953 | Net Income Attributable to AT&T | | 4,662 | | | 5,132 | | | 4,718 | | | 4,858 | | | 19,370 | Basic Earnings Per Share | | | | | | | | | | | | | | | Attributable to Common Stock2 | $ | 0.75 | | $ | 0.81 | | $ | 0.65 | | $ | 0.66 | | $ | 2.85 | Diluted Earnings Per Share | | | | | | | | | | | | | | | Attributable to Common Stock2 | $ | 0.75 | | $ | 0.81 | | $ | 0.65 | | $ | 0.66 | | $ | 2.85 | Stock Price | | | | | | | | | | | | | | | High | $ | 39.29 | | $ | 36.39 | | $ | 34.28 | | $ | 34.30 | | | | Low | | 34.44 | | | 31.17 | | | 30.13 | | | 26.80 | | | | Close | | 35.65 | | | 32.11 | | | 33.58 | | | 28.54 | | | | 1 | Includes actuarial gains and losses on pension and postretirement benefit plans (Note 15). | 2 | Quarterly earnings per share impacts may not add to full-year earnings per share impacts due to the difference in weighted-average | | common shares for the quarters versus the weighted-average common shares for the year. |
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