v3.20.4

Segment Information (Reconciliation Of Operating Income (Loss) to Consolidated Statement Of Income) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Income (Loss) Before Income Taxes | $ (2,856) | $ 18,468 | $ 24,873
AT&T Operating Income | 6,405 | 27,955 | 26,096
Amortization of intangibles acquired | (8,239) | (7,932) | (8,347)
Impairments and abandonments | (18,880) | (1,458) | (46)
Equity in net income (loss) of affiliates | 95 | 6 | (48)
Interest Expense | 7,925 | 8,422 | 7,957
Other income (expense) - net | (1,431) | (1,071) | 6,782
Operating Segments |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Income (Loss) Before Income Taxes | 38,002 | 42,254 | 38,418
AT&T Operating Income | 37,960 | 42,066 | 38,359
Equity in net income (loss) of affiliates | 42 | 188 | 59
Operating Segments | Communications |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Income (Loss) Before Income Taxes | 30,521 | 32,230 | 32,108
AT&T Operating Income | 30,521 | 32,230 | 32,108
Equity in net income (loss) of affiliates | 0 | 0 | 0
Operating Segments | WarnerMedia |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Income (Loss) Before Income Taxes | 8,210 | 10,659 | 7,020
AT&T Operating Income | 8,192 | 10,498 | 6,995
Equity in net income (loss) of affiliates | 18 | 161 | 25
Operating Segments | Latin America |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Income (Loss) Before Income Taxes | (729) | (635) | (710)
AT&T Operating Income | (753) | (662) | (744)
Equity in net income (loss) of affiliates | 24 | 27 | 34
Corporate and Other |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
AT&T Operating Income | (2,342) | (1,978) | (1,722)
Reconciling Items |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Merger and integration items | (468) | (1,032) | (1,234)
Amortization of intangibles acquired | (8,012) | (7,460) | (6,931)
Impairments and abandonments | (18,880) | (1,458) | (46)
Gain on spectrum transaction | 900 | 0 | 0
Employee separation charges and benefit-related (gain) loss | (1,177) | (624) | (587)
Other noncash charges (credits), net | (13) | (43) | (111)
Natural disaster items | 0 | 0 | (181)
Equity in net income (loss) of affiliates | (42) | (188) | (59)
Eliminations and consolidations |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
AT&T Operating Income | $ (1,563) | $ (1,516) | $ (1,451)

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