v3.20.4

Consolidated Statements Of Changes In Stockholders' Equity - USD ($) shares in Millions, $ in Millions | Total | Preferred Stock Preferred Stock – Series A | Preferred Stock Preferred Stock – Series B | Preferred Stock Preferred Stock – Series C | Common Stock | Additional Paid-In Capital | Additional Paid-In Capital Preferred Stock | Additional Paid-In Capital Common Stock | Retained Earnings | Retained Earnings Cumulative effect of accounting changes and other adjustments | Retained Earnings Adjusted beginning balance | Treasury Stock | Accumulated Other Comprehensive Income Attributable to AT&T, net of tax | Accumulated Other Comprehensive Income Attributable to AT&T, net of tax Cumulative effect of accounting changes and other adjustments | Accumulated Other Comprehensive Income Attributable to AT&T, net of tax Adjusted beginning balance | Noncontrolling Interest | Noncontrolling Interest Cumulative effect of accounting changes and other adjustments | Noncontrolling Interest Adjusted beginning balance
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at beginning of year at Dec. 31, 2017 | $ 142,007 | $ 0 | $ 0 | $ 0 | $ 6,495 | $ 89,563 |  |  | $ 50,500 | $ 3,000 | $ 53,500 | $ (12,714) | $ 7,017 | $ (658) | $ 6,359 | $ 1,146 | $ 35 | $ 1,181
Balance at beginning of year (in shares) at Dec. 31, 2017 |  | 0 | 0 | 0 | 6,495 |  |  |  |  |  |  | (356) |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase and acquisition of common stock |  |  |  |  |  |  |  | $ 0 |  |  |  |  |  |  |  |  |  |
Issuance of stock |  | $ 0 | $ 0 | $ 0 | $ 1,126 |  | $ 0 | 35,473 |  |  |  |  |  |  |  |  |  |
Issuance of stock (in shares) |  | 0 | 0 | 0 | 1,126 |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase and acquisition of common stock |  |  |  |  |  |  |  |  |  |  |  | $ (692) |  |  |  |  |  |
Repurchase and acquisition common stock (in shares) |  |  |  |  |  |  |  |  |  |  |  | (20) |  |  |  |  |  |
Issuance of treasury stock |  |  |  |  |  | (115) |  |  |  |  |  | $ 1,347 |  |  |  |  |  |
Issuance of treasury stock (in shares) |  |  |  |  |  |  |  |  |  |  |  | 37 |  |  |  |  |  |
Share-based payments |  |  |  |  |  | 604 |  |  |  |  |  |  |  |  |  |  |  |
Changes related to acquisition of interests held by noncontrolling owners |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to AT&T | 19,370 |  |  |  |  |  |  |  | 19,370 |  |  |  |  |  |  |  |  |
Preferred stock dividends |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |
Common stock dividends ($2.08, $2.05, and $2.01 per share) |  |  |  |  |  |  |  |  | (14,117) |  |  |  |  |  |  |  |  |
Other comprehensive income (loss) attributable to AT&T | (2,110) |  |  |  |  |  |  |  |  |  |  |  | (2,110) |  |  |  |  |
Net income attributable to noncontrolling interest | 583 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 583 |  |
Issuance and acquisition of noncontrolling owners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,804 |  |
Redemption of noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |
Distributions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (732) |  |
Acquisition of interests held by noncontrolling owners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (9) |  |
Translation adjustments attributable to noncontrolling interest, net of taxes | 32 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (32) |  |
Balance at end of year at Dec. 31, 2018 | 193,884 | $ 0 | $ 0 | $ 0 | $ 7,621 | 125,525 |  |  | 58,753 | 316 | 59,069 | $ (12,059) | 4,249 | 0 | 4,249 | 9,795 | 29 | 9,824
Balance at end of year (in shares) at Dec. 31, 2018 |  | 0 | 0 | 0 | 7,621 |  |  |  |  |  |  | (339) |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase and acquisition of common stock |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |
Issuance of stock |  | $ 0 | $ 0 | $ 0 | $ 0 |  | 1,164 | 0 |  |  |  |  |  |  |  |  |  |
Issuance of stock (in shares) |  | 0 | 0 | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase and acquisition of common stock |  |  |  |  |  |  |  |  |  |  |  | $ (2,492) |  |  |  |  |  |
Repurchase and acquisition common stock (in shares) |  |  |  |  |  |  |  |  |  |  |  | (67) |  |  |  |  |  |
Issuance of treasury stock |  |  |  |  |  | (125) |  |  |  |  |  | $ 1,466 |  |  |  |  |  |
Issuance of treasury stock (in shares) |  |  |  |  |  |  |  |  |  |  |  | 40 |  |  |  |  |  |
Share-based payments |  |  |  |  |  | (271) |  |  |  |  |  |  |  |  |  |  |  |
Changes related to acquisition of interests held by noncontrolling owners |  |  |  |  |  | (14) |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to AT&T | 13,903 |  |  |  |  |  |  |  | 13,903 |  |  |  |  |  |  |  |  |
Preferred stock dividends |  |  |  |  |  |  |  |  | (8) |  |  |  |  |  |  |  |  |
Common stock dividends ($2.08, $2.05, and $2.01 per share) |  |  |  |  |  |  |  |  | (15,028) |  |  |  |  |  |  |  |  |
Other comprehensive income (loss) attributable to AT&T | 1,221 |  |  |  |  |  |  |  |  |  |  |  | 1,221 |  |  |  |  |
Net income attributable to noncontrolling interest | 1,072 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,072 |  |
Issuance and acquisition of noncontrolling owners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,881 |  |
Redemption of noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |
Distributions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,055) |  |
Acquisition of interests held by noncontrolling owners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |
Translation adjustments attributable to noncontrolling interest, net of taxes | 9 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (9) |  |
Balance at end of year at Dec. 31, 2019 | 201,934 | $ 0 | $ 0 | $ 0 | $ 7,621 | 126,279 |  |  | 57,936 | $ (293) | $ 57,643 | $ (13,085) | 5,470 | $ 0 | $ 5,470 | 17,713 | $ (7) | $ 17,706
Balance at end of year (in shares) at Dec. 31, 2019 |  | 0 | 0 | 0 | 7,621 |  |  |  |  |  |  | (366) |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase and acquisition of common stock |  |  |  |  |  |  |  | 67 |  |  |  |  |  |  |  |  |  |
Issuance of stock |  | $ 0 | $ 0 | $ 0 | $ 0 |  | $ 3,869 | $ 0 |  |  |  |  |  |  |  |  |  |
Issuance of stock (in shares) |  | 0 | 0 | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase and acquisition of common stock | $ (5,278) |  |  |  |  |  |  |  |  |  |  | $ (5,631) |  |  |  |  |  |
Repurchase and acquisition common stock (in shares) | (142) |  |  |  |  |  |  |  |  |  |  | (150) |  |  |  |  |  |
Issuance of treasury stock |  |  |  |  |  | (62) |  |  |  |  |  | $ 806 |  |  |  |  |  |
Issuance of treasury stock (in shares) |  |  |  |  |  |  |  |  |  |  |  | 21 |  |  |  |  |  |
Share-based payments |  |  |  |  |  | 18 |  |  |  |  |  |  |  |  |  |  |  |
Changes related to acquisition of interests held by noncontrolling owners |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to AT&T | $ (5,176) |  |  |  |  |  |  |  | (5,176) |  |  |  |  |  |  |  |  |
Preferred stock dividends |  |  |  |  |  |  |  |  | (139) |  |  |  |  |  |  |  |  |
Common stock dividends ($2.08, $2.05, and $2.01 per share) |  |  |  |  |  |  |  |  | (14,871) |  |  |  |  |  |  |  |  |
Other comprehensive income (loss) attributable to AT&T | (1,140) |  |  |  |  |  |  |  |  |  |  |  | (1,140) |  |  |  |  |
Net income attributable to noncontrolling interest | 1,355 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,355 |  |
Issuance and acquisition of noncontrolling owners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,979 |  |
Redemption of noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,950) |  |
Distributions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,464) |  |
Acquisition of interests held by noncontrolling owners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |
Translation adjustments attributable to noncontrolling interest, net of taxes | 59 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (59) |  |
Balance at end of year at Dec. 31, 2020 | $ 179,240 | $ 0 | $ 0 | $ 0 | $ 7,621 | $ 130,175 |  |  | $ 37,457 |  |  | $ (17,910) | $ 4,330 |  |  | $ 17,567 |  |
Balance at end of year (in shares) at Dec. 31, 2020 |  | 0 | 0 | 0 | 7,621 |  |  |  |  |  |  | (495) |  |  |  |  |  |

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