Earnings Per Share (Details) - USD ($) shares in Millions, $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2024 |
Sep. 30, 2023 |
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| Numerator for basic earnings per share: | ||||
| Net Income (Loss) Attributable to Common Stock | $ (226) | $ 3,444 | $ 6,715 | $ 12,057 |
| Dilutive potential common shares: | ||||
| Numerator for diluted earnings per share | $ (226) | $ 3,444 | $ 6,715 | $ 12,139 |
| Denominator for basic earnings per share: | ||||
| Weighted average number of common shares outstanding (in shares) | 7,202 | 7,185 | 7,197 | 7,178 |
| Dilutive potential common shares: | ||||
| Denominator for diluted earnings per share (in shares) | 7,208 | 7,185 | 7,200 | 7,280 |
| AT&T Mobility II, LLC preferred interest conversion | ||||
| Dilutive potential common shares: | ||||
| Share-based payment | $ 0 | $ 0 | $ 0 | $ 72 |
| Dilutive potential common shares: | ||||
| Share-based payment (in shares)1 | 0 | 0 | 0 | 95 |
| Other AT&T units | ||||
| Dilutive potential common shares: | ||||
| Share-based payment | $ 0 | $ 0 | $ 0 | $ 10 |
| Dilutive potential common shares: | ||||
| Share-based payment (in shares)1 | 6 | 0 | 3 | 7 |
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- Definition Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise stock options, restrictive stock units (RSUs), convertible preferred stock of an employee stock ownership plan (ESOP), and other dilutive convertible securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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