v3.25.4
Debt and Finance Lease Obligations - Components of Debt (Details)
$ in Millions
12 Months Ended
Dec. 31, 2025
USD ($)
installment
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Debt Instrument [Line Items]      
Sale-leaseback sold and leased back towers $ 3 $ 9  
C&W Credit Facilities | Line of Credit      
Debt Instrument [Line Items]      
Annual installments | installment 3    
Vendor Financing Obligations | Unsecured Debt      
Debt Instrument [Line Items]      
General term of vendor financing arrangements for amounts due 1 year    
Operating expenses financed by intermediary $ 201 $ 199 $ 177