Governmental Authorities Fees

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- Definition

Programming Expense

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No definition available.

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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 958
-SubTopic 225
-Section 45
-Paragraph 11
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=68048823&loc=d3e92212-112881

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Impairment
-URI http://asc.fasb.org/extlink&oid=6515133

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2921-110230

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- 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/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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-Subparagraph (f)(2)(i)
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Summary of Significant Accounting Policies (Details)	3 Months Ended								12 Months Ended
Summary of Significant Accounting Policies (Details)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Property, Plant and Equipment
Impairment of long-lived assets held-for-use									$ 0	$ 0	$ 0
Governmental imposed fees passed through to the customer									711,000,000	255,000,000	248,000,000
Revenue by Product Line
Revenues	$ 10,275,000,000	$ 10,037,000,000	$ 6,161,000,000	$ 2,530,000,000	$ 2,512,000,000	$ 2,450,000,000	$ 2,430,000,000	$ 2,362,000,000	29,003,000,000	9,754,000,000	9,108,000,000
Programming costs									$ 7,034,000,000	$ 2,678,000,000	$ 2,459,000,000
Weighted average assumptions used to estimate the fair value of stock options at the date of grant:
Risk-free interest rate (percentage)									1.70%	1.50%	2.00%
Expected volatility rate (percentage)									25.40%	34.70%	36.90%
Expected life (in years)									1 year 4 months	6 years 6 months	6 years 6 months
Number of reportable segments									1
Cable Distribution Systems [Member] \| Minimum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									7 years
Cable Distribution Systems [Member] \| Maximum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									20 years
Customer Equipment and Installations [Member] \| Minimum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									3 years
Customer Equipment and Installations [Member] \| Maximum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									8 years
Vehicles and Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									3 years
Vehicles and Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									6 years
Buildings and Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									15 years
Buildings and Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									40 years
Furniture, Fixtures and Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									6 years
Furniture, Fixtures and Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment
Property, plant and equipment, useful life (in years)									10 years
Residential Video [Member]
Revenue by Product Line
Revenues									$ 11,967,000,000	$ 4,587,000,000	$ 4,443,000,000
Residential Internet [Member]
Revenue by Product Line
Revenues									9,272,000,000	3,003,000,000	2,576,000,000
Residential Voice [Member]
Revenue by Product Line
Revenues									2,005,000,000	539,000,000	575,000,000
Residential [Member]
Revenue by Product Line
Revenues									23,244,000,000	8,129,000,000	7,594,000,000
Commercial Small and Medium Business [Member]
Revenue by Product Line
Revenues									2,480,000,000	764,000,000	676,000,000
Commercial Enterprise [Member]
Revenue by Product Line
Revenues									1,429,000,000	363,000,000	317,000,000
Commercial [Member]
Revenue by Product Line
Revenues									3,909,000,000	1,127,000,000	993,000,000
Advertising Sales [Member]
Revenue by Product Line
Revenues									1,235,000,000	309,000,000	341,000,000
Other Services [Member]
Revenue by Product Line
Revenues									$ 615,000,000	$ 189,000,000	$ 180,000,000