Additional Financial Information (Tables)
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9 Months Ended |
Sep. 30, 2026 |
| Supplemental Financial Statement Elements [Abstract] |
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| Schedule of Accounts Payable and Accrued Liabilities |
Accounts payable and accrued liabilities are summarized as follows: | | | | | | | | | | | | | (in millions) | September 30, 2026 | | December 31, 2025 | | Accounts payable | $ | 3,908 | | | $ | 5,219 | | | Property and other taxes, including payroll | 1,782 | | | 1,601 | | | Payroll and related benefits | 1,209 | | | 1,709 | | | Accrued interest | 1,063 | | | 1,025 | | | | | | | | | | | | | | | | | | | Other accrued liabilities | 662 | | | 726 | | | Accounts payable and accrued liabilities | $ | 8,624 | | | $ | 10,280 | | | | | |
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| Schedule of Supplemental Consolidated Statements of Cash Flows Information |
The following table summarizes T-Mobile’s supplemental cash flow information: | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended September 30, | | Nine Months Ended September 30, | | (in millions) | 2026 | | 2025 | | 2026 | | 2025 | | | | Interest payments, net of amounts capitalized | $ | 946 | | | $ | 997 | | | $ | 3,119 | | | $ | 2,923 | | | | | Operating lease payments | 1,302 | | | 1,269 | | | 4,142 | | | 3,685 | | | | | Income tax payments, net of refunds received | 7 | | | 63 | | | 774 | | | 415 | | | | | Non-cash investing and financing activities | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change in accounts payable and accrued liabilities for purchases of property and equipment | $ | 51 | | | $ | 136 | | | $ | (710) | | | $ | (458) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Operating lease right-of-use assets obtained in exchange for lease obligations | 582 | | | 1,064 | | | 1,647 | | | 2,138 | | | | | Financing lease right-of-use assets obtained in exchange for lease obligations | 340 | | | 324 | | | 1,050 | | | 1,002 | | | | | | | | | | | | | | | Debt assumed in the UScellular Acquisition | — | | | 1,653 | | | — | | | 1,653 | | | |
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| Schedule of Cash and Cash Equivalents, Including Restricted Cash |
Cash and cash equivalents, including restricted cash, presented on our Condensed Consolidated Statements of Cash Flows were included on our Condensed Consolidated Balance Sheets as follows: | | | | | | | | | | | | | (in millions) | September 30, 2026 | | December 31, 2025 | | Cash and cash equivalents | $ | 5,620 | | | $ | 5,598 | | | | | | | Restricted cash (included in Other current assets) | 321 | | | 296 | | | Restricted cash (included in Other assets) | 85 | | | 82 | | | Cash and cash equivalents, including restricted cash | $ | 6,026 | | | $ | 5,976 | |
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| Schedule of Restricted Cash |
Cash and cash equivalents, including restricted cash, presented on our Condensed Consolidated Statements of Cash Flows were included on our Condensed Consolidated Balance Sheets as follows: | | | | | | | | | | | | | (in millions) | September 30, 2026 | | December 31, 2025 | | Cash and cash equivalents | $ | 5,620 | | | $ | 5,598 | | | | | | | Restricted cash (included in Other current assets) | 321 | | | 296 | | | Restricted cash (included in Other assets) | 85 | | | 82 | | | Cash and cash equivalents, including restricted cash | $ | 6,026 | | | $ | 5,976 | |
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