May refer to a number of different types of wires or groups of wires capable of carrying voice or data transmissions.

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Telecommunications equipment that primarily performs the functions of establishing and releasing connections, and transporting network operations functions.

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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 building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office 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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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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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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Amount before accumulated depreciation, depletion and amortization of other physical assets used in the normal conduct of business to produce goods and services and not intended for resale.

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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 Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Land	$ 67	$ 63
Buildings	542	532
Leasehold and land improvements	1,598	1,538
Cable and wire	2,928	2,609
Network and switching equipment	2,717	2,706
Cell site equipment	4,381	4,248
Office furniture and equipment	272	296
Other operating assets and equipment	240	200
System development	2,214	2,070
Work in process	653	709
Total property, plant and equipment, gross	15,612	14,971
Accumulated depreciation and amortization	(10,550)	(10,211)
Property, plant and equipment, net	5,062	4,760
Depreciation and amortization expense	$ 865	$ 882	$ 851
Buildings \| Minimum
Property, Plant and Equipment [Line Items]
Useful life	5 years
Buildings \| Maximum
Property, Plant and Equipment [Line Items]
Useful life	40 years
Leasehold and land improvements \| Minimum
Property, Plant and Equipment [Line Items]
Useful life	1 year
Leasehold and land improvements \| Maximum
Property, Plant and Equipment [Line Items]
Useful life	30 years
Cable and wire \| Minimum
Property, Plant and Equipment [Line Items]
Useful life	15 years
Cable and wire \| Maximum
Property, Plant and Equipment [Line Items]
Useful life	40 years
Network and switching equipment \| Minimum
Property, Plant and Equipment [Line Items]
Useful life	3 years
Network and switching equipment \| Maximum
Property, Plant and Equipment [Line Items]
Useful life	10 years
Cell site equipment \| Minimum
Property, Plant and Equipment [Line Items]
Useful life	7 years
Cell site equipment \| Maximum
Property, Plant and Equipment [Line Items]
Useful life	30 years
Office furniture and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Useful life	3 years
Office furniture and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Useful life	10 years
Other operating assets and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Useful life	1 year
Other operating assets and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Useful life	12 years
System development \| Minimum
Property, Plant and Equipment [Line Items]
Useful life	1 year
System development \| Maximum
Property, Plant and Equipment [Line Items]
Useful life	7 years