BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue [Line Items]
Total non-lease revenue	$ 196.2	$ 217.0	$ 401.9	$ 426.3
Property lease revenue	2,575.5	2,457.3	5,137.0	4,908.3
Total revenue	2,771.7	2,674.3	5,538.9	5,334.6
U.S. & Canada
Disaggregation of Revenue [Line Items]
Total non-lease revenue	127.0	133.6	250.7	267.3
Property lease revenue	1,219.3	1,162.1	2,435.9	2,320.3
Total revenue	1,346.3	1,295.7	2,686.6	2,587.6
Asia-Pacific
Disaggregation of Revenue [Line Items]
Total non-lease revenue	2.4	4.9	4.7	7.9
Property lease revenue	259.3	293.1	508.1	588.6
Total revenue	261.7	298.0	512.8	596.5
Africa
Disaggregation of Revenue [Line Items]
Total non-lease revenue	5.9	7.1	12.6	14.2
Property lease revenue	315.3	278.4	625.6	539.1
Total revenue	321.2	285.5	638.2	553.3
Europe
Disaggregation of Revenue [Line Items]
Total non-lease revenue	4.1	6.8	7.5	9.2
Property lease revenue	194.1	172.0	382.4	368.1
Total revenue	198.2	178.8	389.9	377.3
Latin America
Disaggregation of Revenue [Line Items]
Total non-lease revenue	28.5	38.6	69.8	75.9
Property lease revenue	410.9	386.6	833.7	768.6
Total revenue	439.4	425.2	903.5	844.5
Data Centers
Disaggregation of Revenue [Line Items]
Total non-lease revenue	28.3	26.0	56.6	51.8
Property lease revenue	176.6	165.1	351.3	323.6
Total revenue	204.9	191.1	407.9	375.4
Non-lease property revenue
Disaggregation of Revenue [Line Items]
Total non-lease revenue	153.1	157.2	306.1	307.0
Non-lease property revenue | U.S. & Canada
Disaggregation of Revenue [Line Items]
Total non-lease revenue	83.9	73.8	154.9	148.0
Non-lease property revenue | Asia-Pacific
Disaggregation of Revenue [Line Items]
Total non-lease revenue	2.4	4.9	4.7	7.9
Non-lease property revenue | Africa
Disaggregation of Revenue [Line Items]
Total non-lease revenue	5.9	7.1	12.6	14.2
Non-lease property revenue | Europe
Disaggregation of Revenue [Line Items]
Total non-lease revenue	4.1	6.8	7.5	9.2
Non-lease property revenue | Latin America
Disaggregation of Revenue [Line Items]
Total non-lease revenue	28.5	38.6	69.8	75.9
Non-lease property revenue | Data Centers
Disaggregation of Revenue [Line Items]
Total non-lease revenue	28.3	26.0	56.6	51.8
Services revenue
Disaggregation of Revenue [Line Items]
Total non-lease revenue	43.1	59.8	95.8	119.3
Services revenue | U.S. & Canada
Disaggregation of Revenue [Line Items]
Total non-lease revenue	43.1	59.8	95.8	119.3
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