Schedule III - Schedule of Real Estate and Depreciation (Details) $ in Millions		12 Months Ended
		Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation, Amount of Encumbrances	[1]	$ 1,742
Gross Amount of Property Carried		27,936	$ 26,679	$ 25,441
Gross Amount of Accumulated Depreciation Carried		$ (12,649)	(11,582)	$ (10,478)
Tower Count		40,000
Fiber Miles		85,000
Other Acquisitions	[2]	$ 32	75
Communications Infrastructure Construction and Improvements		1,138	1,047
Purchase of land interests		53	66
Sustaining Capital Expenditures		52	69
Other Additions	[3]	127	32
Total Additions		1,402	1,289
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Write-down or Reserve, Amount		(145)	(51)
Cost of Real Estate Sold or Disposed		(145)	(51)
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate, Other Deduction		0	0
Depreciation		(1,181)	(1,137)
Amount of Accumulated Depreciation Sold or Disposed		105	25
Other Deductions to Accumulated Depreciation		9	8
Real Estate Period Deductions to Accumulated Depreciation		$ 114	$ 33

[1] Encumbrances are reported at face value, without contemplating the effect of deferred financing costs, discounts or premiums. Certain of the Company's debt is secured by (1) a security interest in substantially all of the applicable issuers' assignable personal property, (2) a pledge of the equity interests in each applicable issuer and (3) a security interest in the applicable issuers' leases with tenants to lease tower space (space licenses).

[2] Includes acquisitions of communications infrastructure.

[3] Predominately relates to (1) the purchase of property and equipment under finance leases and installment land purchases and (2) asset retirement obligations.