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Operating Segments and Concentrations of Credit Risk (Tables)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
 [1]
Dec. 31, 2020
Operating Segments and Concentrations of Credit Risk [Abstract]      
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Year Ended December 31, 2022
TowersFiberOtherConsolidated
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 expense156 156 
Depreciation, amortization and accretion
1,707 1,707 
Interest expense and amortization of deferred financing costs
699 699 
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 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 of $128 million.
(c)See consolidated statement of operations and comprehensive income (loss) for further information.
Year Ended December 31, 2021
TowersFiberOtherConsolidated
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 expense131 131 
Depreciation, amortization and accretion
1,644 1,644 
Interest expense and amortization of deferred financing costs
657 657 
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 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 of $109 million.
(c)See consolidated statement of operations and comprehensive income (loss) for further information.
Year Ended December 31, 2020
TowersFiberOtherConsolidated
Total
Segment site rental revenues$3,497 $1,823 $5,320 
Segment services and other revenues500 20 520 
Segment revenues3,997 1,843 5,840 
Segment site rental costs of operations866 620 1,486 
Segment services and other costs of operations429 12 441 
Segment costs of operations(a)(b)
1,295 632 1,927 
Segment site rental gross margin2,631 1,203 3,834 
Segment services and other gross margin71 8 79 
Segment selling, general and administrative expenses(b)
100 186 286 
Segment other operating (income) expense(c)
— (362)(362)
Segment operating profit (loss)
2,602 1,387 3,989 
Other selling, general and administrative expenses(b)
$283 283 
Stock-based compensation expense133 133 
Depreciation, amortization and accretion
1,608 1,608 
Interest expense and amortization of deferred financing costs
689 689 
Other (income) expenses to reconcile to income (loss) from continuing operations before income taxes(d)
200 200 
Income (loss) from continuing operations before income taxes$1,076 
Capital expenditures$335 $1,232 $57 $1,624 
Total assets (at year end)$22,242 $15,746 $780 $38,768 
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, 2020 excludes (1) stock-based compensation expense of $24 million and (2) prepaid lease purchase price adjustments of $18 million. For the year ended December 31, 2020, segment selling, general and administrative expenses and other selling, general and administrative expenses exclude stock-based compensation expense of $109 million.
(c)See note 15 for further information.
(d)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,
 
2022
2021
2020(a)
T-Mobile 38 %35 %36 %
AT&T 18 %20 %22 %
Verizon Wireless18 %20 %19 %
Total74 %75 %77 %
(a)For the year ended December 31, 2020, revenues attributable to T-Mobile include revenues previously derived from Sprint. On April 1, 2020, T-Mobile and Sprint announced the completion of their previously disclosed merger.
    
[1] See consolidated statement of operations and comprehensive income (loss) for further information