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Operating Segments and Concentrations of Credit Risk (Tables)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
 [1]
Dec. 31, 2021
Operating Segments and Concentrations of Credit Risk [Abstract]      
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Year Ended December 31, 2023
TowersFiberOther
Total
Segment site rental revenues$4,313 $2,219 $6,532 
Segment services and other revenues421 28 449 
Segment revenues4,734 2,247 6,981 
Segment site rental costs of operations943 686 1,629 
Segment services and other costs of operations294 12 306 
Segment costs of operations(a)(b)
1,237 698 1,935 
Segment site rental gross margin3,370 1,533 4,903 
Segment services and other gross margin127 16 143 
Segment selling, general and administrative expenses(b)
104 194 298 
Segment operating profit (loss)
3,393 1,355 4,748 
Other selling, general and administrative expenses(b)
$333 333 
Stock-based compensation expense, net157 157 
Depreciation, amortization and accretion
1,754 1,754 
Restructuring charges
85 85 
Interest expense and amortization of deferred financing costs, net850 850 
Other (income) expenses to reconcile to income (loss) from continuing operations before income taxes(c)
41 41 
Income (loss) from continuing operations before income taxes$1,528 
Capital expenditures$194 $1,175 $55 $1,424 
Total assets (at year end)$21,550 $16,308 $669 $38,527 
Total goodwill (at year end)$5,127 $4,958 $— $10,085 
(a)Exclusive of depreciation, amortization and accretion shown separately.
(b)Segment costs of operations for the year ended December 31, 2023 excludes (1) stock-based compensation expense, net of $29 million and (2) prepaid lease purchase price adjustments of $16 million. For the year ended December 31, 2023, segment selling, general and administrative expenses and other selling, general and administrative expenses exclude stock-based compensation expense, net of $128 million.
(c)See consolidated statement of operations and comprehensive income (loss) for further information.
Year Ended December 31, 2022
TowersFiberOther
Total
Segment site rental revenues$4,322 $1,967 $6,289 
Segment services and other revenues685 12 697 
Segment revenues5,007 1,979 6,986 
Segment site rental costs of operations918 650 1,568 
Segment services and other costs of operations447 9 456 
Segment costs of operations(a)(b)
1,365 659 2,024 
Segment site rental gross margin3,404 1,317 4,721 
Segment services and other gross margin238 3 241 
Segment selling, general and administrative expenses(b)
115 190 305 
Segment operating profit (loss)
3,527 1,130 4,657 
Other selling, general and administrative expenses(b)
$317 317 
Stock-based compensation expense, net156 156 
Depreciation, amortization and accretion
1,707 1,707 
Interest expense and amortization of deferred financing costs, net699 699 
Other (income) expenses to reconcile to income (loss) from continuing operations before income taxes(c)
87 87 
Income (loss) from continuing operations before income taxes$1,691 
Capital expenditures$185 $1,058 $67 $1,310 
Total assets (at year end)$22,210 $16,010 $701 $38,921 
Total goodwill (at year end)$5,127 $4,958 $— $10,085 
(a)Exclusive of depreciation, amortization and accretion shown separately.
(b)Segment costs of operations for the year ended December 31, 2022 excludes (1) stock-based compensation expense, net of $28 million and (2) prepaid lease purchase price adjustments of $16 million. For the year ended December 31, 2022, segment selling, general and administrative expenses and other selling, general and administrative expenses exclude stock-based compensation expense, net of $128 million.
(c)See consolidated statement of operations and comprehensive income (loss) for further information.
Year Ended December 31, 2021
TowersFiberOther
Total
Segment site rental revenues$3,804 $1,915 $5,719 
Segment services and other revenues601 20 621 
Segment revenues4,405 1,935 6,340 
Segment site rental costs of operations889 633 1,522 
Segment services and other costs of operations414 17 431 
Segment costs of operations(a)(b)
1,303 650 1,953 
Segment site rental gross margin2,915 1,282 4,197 
Segment services and other gross margin187 3 190 
Segment selling, general and administrative expenses(b)
107 174 281 
Segment operating profit (loss)
2,995 1,111 4,106 
Other selling, general and administrative expenses(b)
$290 290 
Stock-based compensation expense, net131 131 
Depreciation, amortization and accretion
1,644 1,644 
Interest expense and amortization of deferred financing costs, net657 657 
Other (income) expenses to reconcile to income (loss) from continuing operations before income taxes(c)
205 205 
Income (loss) from continuing operations before income taxes$1,179 
Capital expenditures$221 $956 $52 $1,229 
Total assets (at year end)$22,318 $15,876 $846 $39,040 
Total goodwill (at year end)$5,127 $4,951 $— $10,078 
(a)Exclusive of depreciation, amortization and accretion shown separately.
(b)Segment costs of operations for the year ended December 31, 2021 excludes (1) stock-based compensation expense, net of $22 million and (2) prepaid lease purchase price adjustments of $18 million. For the year ended December 31, 2021, segment selling, general and administrative expenses and other selling, general and administrative expenses exclude stock-based compensation expense, net of $109 million.
(c)See consolidated statement of operations and comprehensive income (loss) for further information.
A Summary of the Percentage of the Consolidated Revenues for Those Customers Accounting for More than 10% of the Consolidated Revenues
The following table summarizes the percentage of the consolidated revenues for those tenants accounting for more than 10% of the consolidated revenues.
 Years Ended December 31,
 
2023
2022
2021
T-Mobile 38 %38 %35 %
AT&T 19 %18 %20 %
Verizon Wireless19 %18 %20 %
Total76 %74 %75 %
    
[1] See consolidated statement of operations and comprehensive income (loss) for further information