Acquisitions (Narrative) (Details) $ in Millions	2 Months Ended	12 Months Ended
	Feb. 28, 2023 USD ($) item	Dec. 31, 2022 USD ($) item site	Dec. 31, 2021 USD ($) item	Dec. 31, 2020 USD ($) item
Business Acquisition [Line Items]
Number of towers acquired | item		4,790	991	233
Performance targets, maximum potential obligation		$ 10.1	$ 11.6
Exclusive Right to Lease and Operate Utility Transmission Structures [Member]
Business Acquisition [Line Items]
Consideration transferred			$ 950.5
Airtel Tanzania [Member]
Business Acquisition [Line Items]
Consideration transferred		176.1
GTS [Member]
Business Acquisition [Line Items]
Property and equipment		23.8
Intangible assets		142.2
Operating leases right-of-use assets, net		48.8
Acquired and other right-of-use assets, net		529.3
Long-term lease liabilities assumed		18.3
Other net assets assumed		$ 2.4
Number of communication sites acquired | site		2,632
Consideration transferred		$ 728.2
Other Acquisitions [Member]
Business Acquisition [Line Items]
Number of towers acquired | item		2,158	278	233
Property and equipment		$ 124.5	$ 26.1	$ 30.1
Intangible assets		209.8	135.8	218.1
Operating leases right-of-use assets, net		125.0	18.6
Acquired and other right-of-use assets, net		38.0
Other net liabilities assumed		2.2
Acquisition related holdbacks		24.3
Long-term lease liabilities assumed		$ 106.6
Other net assets and liabilities assumed			$ 0.8	$ 66.8
Business Combination [Member]
Business Acquisition [Line Items]
Number of businesses acquired | item		1
Cash paid for acquisition		$ 49.9
Subsequent Event [Member] | Other Acquisitions [Member]
Business Acquisition [Line Items]
Number of communication sites acquired | item	31
Consideration transferred	$ 23.2