v3.20.4

Acquisitions, Dispositions And Other Adjustments (HBO LAG, Time Warner, Otter and AppNexus Acquisitions Narrative) (Details) - USD ($) $ in Millions |  |  | 1 Months Ended | 7 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Aug. 15, 2018 | Aug. 07, 2018 | May 31, 2020 | Jun. 30, 2018 | Dec. 31, 2018 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Acquisitions, net of cash acquired |  |  |  |  |  | $ 1,851 | $ 1,809 | $ 43,309
Goodwill |  |  |  |  | $ 146,370 | 135,259 | 146,241 | 146,370
Revenues |  |  |  |  |  | 171,760 | 181,193 | 170,756
Operating income |  |  |  |  |  | 6,405 | 27,955 | 26,096
Intangible amortization |  |  |  |  |  | 8,239 | 7,932 | 8,347
Conversion to equity of advance made in first quarter of 2018 |  |  |  |  |  | 160 | 365 | 1,050
WarnerMedia |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill |  |  |  |  | 42,101 | $ 42,447 | $ 42,345 | $ 42,101
HBO LAG | WarnerMedia |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Acquisitions, net of cash acquired |  |  | $ 141 |  |  |  |  |
Pre-tax remeasurement gain |  |  | 68 |  |  |  |  |
Acquisition of intangible assets, trade names |  |  | 640 |  |  |  |  |
Goodwill |  |  | 346 |  |  |  |  |
HBO LAG | WarnerMedia | Distribution Networks – Net |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Acquisition of other intangible assets |  |  | $ 271 |  |  |  |  |
Time Warner |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Total consideration |  |  |  | $ 79,358 |  |  |  |
Time Warner | Acquisition |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Revenues |  |  |  |  | 18,209 |  |  |
Operating income |  |  |  |  | 1,400 |  |  |
Intangible amortization |  |  |  |  | $ 3,296 |  |  |
Otter Media | WarnerMedia |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Acquisitions, net of cash acquired |  | $ 157 |  |  |  |  |  |
Pre-tax remeasurement gain |  | 395 |  |  |  |  |  |
Goodwill |  | 1,239 |  |  |  |  |  |
Conversion to equity of advance made in first quarter of 2018 |  | $ 1,480 |  |  |  |  |  |
AppNexus | WarnerMedia |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Goodwill | $ 1,220 |  |  |  |  |  |  |
Total consideration | $ 1,432 |  |  |  |  |  |  |

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