v3.26.3
BUSINESS SEGMENTS - Summarized Segment Financial Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Segment Reporting [Line Items]          
Segment revenues $ 2,785.4 $ 2,717.4 $ 8,272.0 $ 7,907.1  
Segment selling, general, administrative and development expense 228.2 233.0 719.4 704.2  
OPERATING INCOME 1,269.0 1,233.3 3,777.0 3,685.1  
Stock-based compensation expense 31.5 41.9 124.1 142.6  
Other selling, general, administrative and development expense 60.7 57.0 189.0 174.5  
Depreciation, amortization and accretion 519.4 522.9 1,552.0 1,525.7  
Other expense 382.5 300.7 873.3 1,563.9  
Income from continuing operations before income taxes 898.4 950.0 2,925.8 2,079.3  
Total assets 62,980.3 63,888.7 62,980.3 63,888.7 $ 63,190.4
Capital expenditures     1,195.2 1,128.8  
Unrealized (losses) gains on equity securities (71.5) 10.9 (35.1) 129.2  
Disposal Group, Disposed of by Sale, Not Discontinued Operations | APAC Operations          
Segment Reporting [Line Items]          
Gain on sale of subsidiary     20.4    
Disposal Group, Disposed of by Sale, Not Discontinued Operations | South Africa Fiber          
Segment Reporting [Line Items]          
Gain on sale of subsidiary       53.6  
U.S. & Canada          
Segment Reporting [Line Items]          
Segment revenues 1,326.6 1,419.9 3,991.5 4,199.4  
Africa & APAC          
Segment Reporting [Line Items]          
Segment revenues 427.9 370.8 1,221.8 1,040.7  
Europe          
Segment Reporting [Line Items]          
Segment revenues 257.9 243.6 778.0 689.3  
Latin America          
Segment Reporting [Line Items]          
Segment revenues 460.0 416.5 1,381.7 1,205.1  
Data Centers          
Segment Reporting [Line Items]          
Segment revenues 313.0 266.6 899.0 772.6  
Operating Segments          
Segment Reporting [Line Items]          
Segment revenues 2,785.4 2,717.4 8,272.0 7,907.1  
Segment operating expenses 756.9 710.8 2,201.5 2,034.0  
Segment gross margin 2,028.5 2,006.6 6,070.5 5,873.1  
Segment selling, general, administrative and development expense 136.0 134.1 406.3 387.1  
OPERATING INCOME 1,892.5 1,872.5 5,664.2 5,486.0  
Operating Segments | Total  Property          
Segment Reporting [Line Items]          
Segment revenues 2,734.0 2,616.3 8,091.7 7,631.9  
Segment operating expenses 724.9 657.0 2,097.6 1,897.2  
Segment gross margin 2,009.1 1,959.3 5,994.1 5,734.7  
Segment selling, general, administrative and development expense 129.8 127.9 389.1 368.0  
OPERATING INCOME 1,879.3 1,831.4 5,605.0 5,366.7  
Total assets 62,716.9 63,569.1 62,716.9 63,569.1  
Capital expenditures     1,183.2 1,119.1  
Operating Segments | U.S. & Canada          
Segment Reporting [Line Items]          
Segment revenues 1,275.2 1,318.8 3,811.2 3,924.2  
Segment operating expenses 224.7 217.4 651.4 641.9  
Segment gross margin 1,050.5 1,101.4 3,159.8 3,282.3  
Segment selling, general, administrative and development expense 40.7 41.2 120.9 121.8  
OPERATING INCOME 1,009.8 1,060.2 3,038.9 3,160.5  
Total assets 26,272.2 26,927.5 26,272.2 26,927.5  
Capital expenditures     243.7 256.1  
Operating Segments | Africa & APAC          
Segment Reporting [Line Items]          
Segment revenues 427.9 370.8 1,221.8 1,040.7  
Segment operating expenses 151.7 114.1 418.6 317.9  
Segment gross margin 276.2 256.7 803.2 722.8  
Segment selling, general, administrative and development expense 20.4 18.5 61.3 57.5  
OPERATING INCOME 255.8 238.2 741.9 665.3  
Total assets 4,376.9 4,455.6 4,376.9 4,455.6  
Capital expenditures     114.2 151.7  
Operating Segments | Europe          
Segment Reporting [Line Items]          
Segment revenues 257.9 243.6 778.0 689.3  
Segment operating expenses 95.8 89.3 284.4 251.9  
Segment gross margin 162.1 154.3 493.6 437.4  
Segment selling, general, administrative and development expense 15.6 16.8 48.8 47.2  
OPERATING INCOME 146.5 137.5 444.8 390.2  
Total assets 12,536.7 12,904.7 12,536.7 12,904.7  
Capital expenditures     218.3 196.4  
Operating Segments | Latin America          
Segment Reporting [Line Items]          
Segment revenues 460.0 416.5 1,381.7 1,205.1  
Segment operating expenses 133.3 132.3 397.9 379.4  
Segment gross margin 326.7 284.2 983.8 825.7  
Segment selling, general, administrative and development expense 24.6 28.7 78.4 76.8  
OPERATING INCOME 302.1 255.5 905.4 748.9  
Total assets 8,721.9 8,553.2 8,721.9 8,553.2  
Capital expenditures     111.0 97.7  
Operating Segments | Data Centers          
Segment Reporting [Line Items]          
Segment revenues 313.0 266.6 899.0 772.6  
Segment operating expenses 119.4 103.9 345.3 306.1  
Segment gross margin 193.6 162.7 553.7 466.5  
Segment selling, general, administrative and development expense 28.5 22.7 79.7 64.7  
OPERATING INCOME 165.1 140.0 474.0 401.8  
Total assets 10,809.2 10,728.1 10,809.2 10,728.1  
Capital expenditures     496.0 417.2  
Operating Segments | Services          
Segment Reporting [Line Items]          
Segment revenues 51.4 101.1 180.3 275.2  
Segment operating expenses 32.0 53.8 103.9 136.8  
Segment gross margin 19.4 47.3 76.4 138.4  
Segment selling, general, administrative and development expense 6.2 6.2 17.2 19.1  
OPERATING INCOME 13.2 41.1 59.2 119.3  
Total assets 52.8 147.8 52.8 147.8  
Capital expenditures     0.0 0.0  
Other          
Segment Reporting [Line Items]          
Stock-based compensation expense 31.5 41.9 124.1 142.6  
Other selling, general, administrative and development expense 60.7 57.0 189.0 174.5  
Depreciation, amortization and accretion 519.4 522.9 1,552.0 1,525.7  
Other expense 382.5 300.7 873.3 1,563.9  
Total assets $ 210.6 $ 171.8 210.6 171.8  
Capital expenditures     $ 12.0 $ 9.7