Revenues (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Revenue Recognition Non-cancelable Lease Term for Wireless Tenants		five to 15 years
Revenue Recognition for Fiber Solutions Tenants		three to 20 years
Revenue, Performance Obligation, Description of Payment Terms		45 to 60 days,
Revenue, Remaining Performance Obligation, Amount				$ 2,300	$ 2,600
Revenue Recognized on Deferred Revenues		$ 166	$ 190
Contracted Amounts Receivable from Customers, remainder of year	[1]	3,671
Contracted Amounts Receivable from Customers, in Two Years	[1]	4,479
Contracted Amounts Receivable from Customers, in Three Years	[1]	4,140
Contracted Amounts Receivable from Customers, in Four Years	[1]	4,022
Contracted Amounts Receivable from Customers, in Five Years	[1]	3,976
Contracted Amounts Receivable from Customers, Thereafter	[1]	19,160
Lessor, Operating Lease, Payments to be Received	[1]	$ 39,448

[1] Based on the nature of the contract, tenant contracts are accounted for pursuant to relevant lease accounting (ASC 842) or revenue accounting (ASC 606) guidance. Excludes amounts related to services, as those contracts generally have a duration of one year or less.