BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation of Revenue [Line Items]
Total non-lease revenue	$ 190.4	$ 185.7	$ 559.8	$ 582.9
Property lease revenue	2,331.9	2,335.4	7,019.8	6,973.2
Total revenue	2,522.3	2,521.1	7,579.6	7,556.1
U.S. & Canada
Disaggregation of Revenue [Line Items]
Total non-lease revenue	120.0	117.5	347.7	368.2
Property lease revenue	1,250.4	1,233.2	3,726.4	3,669.1
Total revenue	1,370.4	1,350.7	4,074.1	4,037.3
Asia-Pacific
Disaggregation of Revenue [Line Items]
Total non-lease revenue	0.0	0.0	0.0	0.0
Property lease revenue	5.7	4.8	16.1	13.7
Total revenue	5.7	4.8	16.1	13.7
Africa
Disaggregation of Revenue [Line Items]
Total non-lease revenue	6.4	5.8	18.7	18.4
Property lease revenue	290.5	287.9	864.1	913.5
Total revenue	296.9	293.7	882.8	931.9
Europe
Disaggregation of Revenue [Line Items]
Total non-lease revenue	4.4	3.0	13.1	10.5
Property lease revenue	208.4	197.4	607.4	579.8
Total revenue	212.8	200.4	620.5	590.3
Latin America
Disaggregation of Revenue [Line Items]
Total non-lease revenue	25.6	29.8	81.9	99.6
Property lease revenue	377.2	429.8	1,215.1	1,263.5
Total revenue	402.8	459.6	1,297.0	1,363.1
Data Centers
Disaggregation of Revenue [Line Items]
Total non-lease revenue	34.0	29.6	98.4	86.2
Property lease revenue	199.7	182.3	590.7	533.6
Total revenue	233.7	211.9	689.1	619.8
Non-lease property revenue
Disaggregation of Revenue [Line Items]
Total non-lease revenue	138.0	159.5	429.8	460.9
Non-lease property revenue | U.S. & Canada
Disaggregation of Revenue [Line Items]
Total non-lease revenue	67.6	91.3	217.7	246.2
Non-lease property revenue | Asia-Pacific
Disaggregation of Revenue [Line Items]
Total non-lease revenue	0.0	0.0	0.0	0.0
Non-lease property revenue | Africa
Disaggregation of Revenue [Line Items]
Total non-lease revenue	6.4	5.8	18.7	18.4
Non-lease property revenue | Europe
Disaggregation of Revenue [Line Items]
Total non-lease revenue	4.4	3.0	13.1	10.5
Non-lease property revenue | Latin America
Disaggregation of Revenue [Line Items]
Total non-lease revenue	25.6	29.8	81.9	99.6
Non-lease property revenue | Data Centers
Disaggregation of Revenue [Line Items]
Total non-lease revenue	34.0	29.6	98.4	86.2
Services revenue
Disaggregation of Revenue [Line Items]
Total non-lease revenue	52.4	26.2	130.0	122.0
Services revenue | U.S. & Canada
Disaggregation of Revenue [Line Items]
Total non-lease revenue	52.4	26.2	130.0	122.0
Services revenue | Asia-Pacific
Disaggregation of Revenue [Line Items]
Total non-lease revenue	0.0	0.0	0.0	0.0
Services revenue | Africa
Disaggregation of Revenue [Line Items]
Total non-lease revenue	0.0	0.0	0.0	0.0
Services revenue | Europe
Disaggregation of Revenue [Line Items]
Total non-lease revenue	0.0	0.0	0.0	0.0
Services revenue | Latin America
Disaggregation of Revenue [Line Items]
Total non-lease revenue	0.0	0.0	0.0	0.0
Services revenue | Data Centers
Disaggregation of Revenue [Line Items]
Total non-lease revenue	$ 0.0	$ 0.0	$ 0.0	$ 0.0