v3.25.4
Debt - Schedule of Variable Interest Entities (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Debt Instrument [Line Items]    
Equipment installment plan receivables, net $ 4,997 $ 4,379
Equipment installment plan receivables due after one year, net 2,683 2,209
Other current assets 5,372 1,853
Accounts payable and accrued liabilities 10,280 8,463
Short-term debt 5,135 4,068
Long-term debt 81,147 74,197
Variable Interest Entity, Primary Beneficiary    
Debt Instrument [Line Items]    
Equipment installment plan receivables, net 1,865 1,472
Equipment installment plan receivables due after one year, net 543 352
Other current assets 232 151
Accounts payable and accrued liabilities 3 2
Short-term debt 594 570
Long-term debt $ 1,401 $ 996