Property, Plant and Equipment - Schedule of Property, Plant, and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Property, plant and equipment
Gross property, plant and equipment	$ 41,076	$ 39,052
Accumulated depreciation	(21,318)	(19,886)
Net property, plant and equipment	19,758	19,166
Disposal Group, Held-for-sale, Not Discontinued Operations | EMEA Business
Property, plant and equipment
Property, plant and equipment, net classified as held for sale		1,900
Land
Property, plant and equipment
Gross property, plant and equipment	646	651
Fiber, conduit and other outside plant
Property, plant and equipment
Gross property, plant and equipment	$ 15,217	14,451
Fiber, conduit and other outside plant | Minimum
Property, plant and equipment
Depreciable Lives	15 years
Fiber, conduit and other outside plant | Maximum
Property, plant and equipment
Depreciable Lives	45 years
Central office and other network electronics
Property, plant and equipment
Gross property, plant and equipment	$ 15,741	15,077
Central office and other network electronics | Minimum
Property, plant and equipment
Depreciable Lives	3 years
Central office and other network electronics | Maximum
Property, plant and equipment
Depreciable Lives	10 years
Support assets
Property, plant and equipment
Gross property, plant and equipment	$ 6,714	6,863
Support assets | Minimum
Property, plant and equipment
Depreciable Lives	3 years
Support assets | Maximum
Property, plant and equipment
Depreciable Lives	30 years
Construction in progress
Property, plant and equipment
Gross property, plant and equipment	$ 2,758	$ 2,010