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Operating Costs and Expenses (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating Costs and Expenses [Abstract]
Programming	$ 2,983	$ 2,727	$ 8,949	$ 8,492
Regulatory, connectivity and produced content	634	612	1,902	1,651
Costs to service customers	1,899	1,902	5,530	5,598
Marketing	788	788	2,280	2,273
Mobile	607	456	1,765	1,243
Other	1,047	998	3,125	2,955
Operating costs and expenses (exclusive of items shown separately in the consolidated statements of operations)	$ 7,958	$ 7,483	$ 23,551	$ 22,212

X

- Definition

Cost to Service Customers

+ References

No definition available.

+ Details

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X

- Definition

Franchise, Regulatory and Connectivity Expense

+ References

No definition available.

+ Details

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X

- Definition

Mobile costs and expenses

+ References

No definition available.

+ Details

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Balance Type:	debit
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X

- Definition

Programming Expense

+ References

No definition available.

+ Details

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X

- Definition

The total expense recognized in the period for promotion, public relations, and brand or product advertising.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.4)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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- References

No definition available.

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X

- Definition

Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

+ References

No definition available.

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X

- Definition

The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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