Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

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The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

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The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

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Additions made to capitalized computer software costs during the period.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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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).

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Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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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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PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 12,642,363	$ 12,480,062
Less accumulated depreciation and amortization	(9,625,348)	(9,454,315)
Total property, plant and equipment, net	3,017,015	3,025,747
Depreciation expense on property, plant and equipment, including capital leases	857,440	852,451	$ 858,899
Impairments of property, plant and equipment		425	$ 10,997
Equipment and Related Accumulated Amortization Recorded Under Capital Leases [Abstract]
Equipment	90,099	95,719
Less accumulated amortization	(28,119)	(39,951)
Total equipment under capital leases, net	$ 61,980	55,768
Cable Television System Plant \| Minimum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	10 years
Cable Television System Plant \| Maximum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	25 years
Headend Facilities \| Minimum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	4 years
Headend Facilities \| Maximum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	25 years
New Connections for Residence Wiring
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	5 years
New Connections for Feeder Cable to the Home
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	12 years
Customer equipment
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 1,952,336	1,954,512
Customer equipment \| Minimum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	3 years
Customer equipment \| Maximum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	5 years
Headends and related equipment
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 1,571,750	1,437,681
Headends and related equipment \| Minimum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	4 years
Headends and related equipment \| Maximum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	25 years
Central office equipment
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 816,539	811,320
Central office equipment \| Minimum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	5 years
Central office equipment \| Maximum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	10 years
Infrastructure
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 5,639,226	5,695,519
Infrastructure \| Minimum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	3 years
Infrastructure \| Maximum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	25 years
Equipment and software
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 1,577,616	1,507,500
Equipment and software \| Minimum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	3 years
Equipment and software \| Maximum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	10 years
Construction in progress (including materials and supplies)
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 87,412	97,955
Furniture and fixtures
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 96,561	94,265
Furniture and fixtures \| Minimum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	5 years
Furniture and fixtures \| Maximum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	12 years
Transportation equipment
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 210,013	217,486
Transportation equipment \| Minimum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	5 years
Transportation equipment \| Maximum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	18 years
Buildings and building improvements
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 322,267	303,344
Buildings and building improvements \| Minimum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	10 years
Buildings and building improvements \| Maximum
Property, Plant and Equipment [Abstract]
Estimated useful lives (years)	40 years
Leasehold improvements
Property, Plant and Equipment [Abstract]
Estimated useful lives, description	Term of lease
Property, plant and equipment, gross	$ 354,136	345,942
Land
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	14,507	14,538
Software Development
Property, Plant and Equipment [Abstract]
Capitalized costs related to acquisition and development of internal use software	$ 144,349	$ 153,675