v3.20.4

Segment Information (Intersegment Details) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Total revenues	$ (171,760)	$ (181,193)	$ (170,756)
Total Intersegment Revenues
Segment Reporting Information [Line Items]
Total revenues	3,194	3,344	1,888
Consolidations
Segment Reporting Information [Line Items]
Total revenues	1,986	1,909	1,511
Eliminations and consolidations
Segment Reporting Information [Line Items]
Total revenues	5,180	5,253	3,399
Communications | Total Intersegment Revenues
Segment Reporting Information [Line Items]
Total revenues	11	26	13
WarnerMedia | Total Intersegment Revenues
Segment Reporting Information [Line Items]
Total revenues	3,183	3,318	1,875
Latin America | Total Intersegment Revenues
Segment Reporting Information [Line Items]
Total revenues	$ 0	$ 0	$ 0

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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- Definition

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+ References

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