Revenues (Details) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	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
Deferred site rental receivables		$ 1,796		$ 1,588
Revenue, Performance Obligation, Description of Payment Terms		45 to 60 days
Revenue, Remaining Performance Obligation, Amount		$ 2,500		$ 2,600
Revenue Recognized on Deferred Revenues		350	$ 315
Contracted Amounts Receivable from Customers, remainder of year	[1]	2,390
Contracted Amounts Receivable from Customers, in Two Years	[1]	4,691
Contracted Amounts Receivable from Customers, in Three Years	[1]	4,253
Contracted Amounts Receivable from Customers, in Four Years	[1]	3,935
Contracted Amounts Receivable from Customers, in Five Years	[1]	3,871
Contracted Amounts Receivable from Customers, Thereafter	[1]	22,617
Lessor, Operating Lease, Payments to be Received	[1]	41,757
Other Current Assets [Member]
Deferred site rental receivables		111
Other Noncurrent Assets [Member]
Deferred site rental receivables		$ 1,800

[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.