Earnings Per Share (Narrative) (Details) - Subsequent Event [Member] |
1 Months Ended |
|---|---|
Jan. 31, 2020 | |
| Subsequent Event [Line Items] | |
| Subsequent Event, Date | Jan. 03, 2020 |
| Earnings Per Share, Subsequent Events | We executed an accelerated share repurchase agreement with a third-party financial institution to repurchase AT&T common stock (see Note 17). Under the terms of the agreement, on January 3, 2020, we paid the financial institution $4,000 and received approximately 80% of the stock, or 82.3 million shares. The final number of shares to be repurchased under the agreement will be based on the average of the daily volume-weighted average prices of AT&T common stock during the repurchase period, which is expected to conclude late in the first quarter of 2020. Upon final settlement of the agreement, we may be entitled to receive additional shares of AT&T common stock, or, under certain circumstances, we may be required to deliver shares of AT&T common stock or make a cash payment, at our election. |