Supplier and Vendor Financing Programs	3 Months Ended
Mar. 31, 2026
Payables and Accruals [Abstract]
Accounts Payable and Accrued Liabilities Disclosure [Text Block]	NOTE 10. SUPPLIER AND VENDOR FINANCING PROGRAMS Supplier Financing Program We actively manage the timing of our supplier payments for operating items to optimize the use of our cash and seek to make payments on 90-day or greater terms, while providing suppliers with access to bank facilities that permit earlier payment at their cost. Our supplier financing program does not result in changes to our normal, contracted payment cycles or cash from operations. At the supplier’s election, they can receive payment of AT&T obligations prior to the scheduled due dates, at a discounted price from the third-party financial institution. The discounted price paid to participating suppliers is based on a variable rate that is indexed to the overnight borrowing rate. We agree to pay the financial institution the stated amount generally within 90 days of receipt of the invoice. We do not have pledged assets or other guarantees under our supplier financing program. Suppliers had elected to sell to the third-party financial institutions $4,082 and $3,090 of our outstanding payment obligations as of March 31, 2026 and December 31, 2025, respectively. These amounts are included in “Accounts payable and accrued liabilities” on our consolidated balance sheets. Our supplier financing programs are reported as operating or investing (when capitalizable) activities in our consolidated statements of cash flows when paid. Direct Supplier Financing We also have arrangements with suppliers of handset inventory that allow us to extend the stated payment terms by up to approximately 120 days, with an average of 85 days outstanding, at an additional cost to us (variable rate extension fee). We had $5,820 of direct supplier financing outstanding as of March 31, 2026 and $6,901 as of December 31, 2025, which are included in “Accounts payable and accrued liabilities” on our consolidated balance sheets. Our direct supplier financing is reported as operating activities in our statements of cash flows when paid. Vendor Financing We enter into multi-year software licensing arrangements, which, consistent with industry standards, are paid over the license terms of two to five years. Additionally, in connection with capital improvements and the acquisition of other productive assets, we negotiate favorable payment terms of 120 days or more. We refer to these arrangements as vendor financing, with the balances and activities including equipment and software arrangements. Vendor financing payments are reported as financing activities in our statements of cash flows when paid. For the three months ended March 31, 2026 and 2025, we recorded vendor financing commitments of $732 and $378, respectively. We had $2,437 of vendor financing payables at March 31, 2026, with $1,474 included in “Accounts payable and accrued liabilities” and $1,892 of vendor financing payables at December 31, 2025, with $956 included in “Accounts payable and accrued liabilities.”

We actively manage the timing of our supplier payments for operating items to optimize the use of our cash and seek to make payments on 90-day or greater terms, while providing suppliers with access to bank facilities that permit earlier payment at their cost. Our supplier financing program does not result in changes to our normal, contracted payment cycles or cash from operations.

At the supplier’s election, they can receive payment of AT&T obligations prior to the scheduled due dates, at a discounted price from the third-party financial institution. The discounted price paid to participating suppliers is based on a variable rate that is indexed to the overnight borrowing rate. We agree to pay the financial institution the stated amount generally within 90 days of receipt of the invoice. We do not have pledged assets or other guarantees under our supplier financing program.

Suppliers had elected to sell to the third-party financial institutions $4,082 and $3,090 of our outstanding payment obligations as of March 31, 2026 and December 31, 2025, respectively. These amounts are included in “Accounts payable and accrued liabilities” on our consolidated balance sheets. Our supplier financing programs are reported as operating or investing (when capitalizable) activities in our consolidated statements of cash flows when paid.

We also have arrangements with suppliers of handset inventory that allow us to extend the stated payment terms by up to approximately 120 days, with an average of 85 days outstanding, at an additional cost to us (variable rate extension fee). We had $5,820 of direct supplier financing outstanding as of March 31, 2026 and $6,901 as of December 31, 2025, which are included in “Accounts payable and accrued liabilities” on our consolidated balance sheets. Our direct supplier financing is reported as operating activities in our statements of cash flows when paid.

We enter into multi-year software licensing arrangements, which, consistent with industry standards, are paid over the license terms of two to five years. Additionally, in connection with capital improvements and the acquisition of other productive assets, we negotiate favorable payment terms of 120 days or more. We refer to these arrangements as vendor financing, with the balances and activities including equipment and software arrangements. Vendor financing payments are reported as financing activities in our statements of cash flows when paid. For the three months ended March 31, 2026 and 2025, we recorded vendor financing commitments of $732 and $378, respectively. We had $2,437 of vendor financing payables at March 31, 2026, with $1,474 included in “Accounts payable and accrued liabilities” and $1,892 of vendor financing payables at December 31, 2025, with $956 included in “Accounts payable and accrued liabilities.”