T-Mobile US, Inc.

0000001 - Document - Cover Page

0000002 - Document - Audit Information

9952151 - Statement - Consolidated Balance Sheets

9952152 - Statement - Consolidated Balance Sheets (Parenthetical)

9952153 - Statement - Consolidated Statements of Comprehensive Income

9952154 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical)

9952155 - Statement - Consolidated Statements of Cash Flows

9952156 - Statement - Consolidated Statements of Cash Flows (Parenthetical)

9952157 - Statement - Consolidated Statement of Stockholders??? Equity

9952158 - Statement - Consolidated Statement of Stockholders??? Equity (Parenthetical)

9952159 - Disclosure - Summary of Significant Accounting Policies

9952160 - Disclosure - Business Combinations

9952161 - Disclosure - Joint Ventures

9952162 - Disclosure - Receivables and Related Allowance for Credit Losses

9952163 - Disclosure - Sales of Certain Receivables

9952164 - Disclosure - Property and Equipment

9952165 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets

9952166 - Disclosure - Fair Value Measurements

9952167 - Disclosure - Debt

9952168 - Disclosure - Tower Obligations

9952169 - Disclosure - Revenue from Contracts with Customers

9952170 - Disclosure - Segment Reporting

9952171 - Disclosure - Employee Compensation and Benefit Plans

9952172 - Disclosure - Income Taxes

9952173 - Disclosure - Stockholder Return Programs

9952174 - Disclosure - Earnings Per Share

9952175 - Disclosure - Leases

9952176 - Disclosure - Commitments and Contingencies

9952177 - Disclosure - Restructuring Costs

9952178 - Disclosure - Additional Financial Information

9952179 - Disclosure - Subsequent Events

995445 - Disclosure - Insider Trading Arrangements

995447 - Disclosure - Insider Trading Policies and Procedures

995550 - Disclosure - Cybersecurity Risk Management and Strategy Disclosure

9955511 - Disclosure - Summary of Significant Accounting Policies (Policies)

9955512 - Disclosure - Business Combinations (Tables)

9955513 - Disclosure - Receivables and Related Allowance for Credit Losses (Tables)

9955514 - Disclosure - Sales of Certain Receivables (Tables)

9955515 - Disclosure - Property and Equipment (Tables)

9955516 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets (Tables)

9955517 - Disclosure - Fair Value Measurements (Tables)

9955518 - Disclosure - Debt (Tables)

9955519 - Disclosure - Tower Obligations (Tables)

9955520 - Disclosure - Revenue from Contracts with Customers (Tables)

9955521 - Disclosure - Segment Reporting (Tables)

9955522 - Disclosure - Employee Compensation and Benefit Plans (Tables)

9955523 - Disclosure - Income Taxes (Tables)

9955524 - Disclosure - Earnings Per Share (Tables)

9955525 - Disclosure - Leases (Tables)

9955526 - Disclosure - Commitment and Contingencies (Tables)

9955527 - Disclosure - Restructuring Costs (Tables)

9955528 - Disclosure - Additional Financial Information (Tables)

9955529 - Disclosure - Summary of Significant Accounting Policies (Details)

9955530 - Disclosure - Business Combinations - Narrative (Details)

9955531 - Disclosure - Business Combinations - Schedule of Fair Value of Consideration Transferred (Details)

9955532 - Disclosure - Business Combinations - Schedule of Fair Value of Assets Acquired and Liabilities Assumed (Details)

9955533 - Disclosure - Business Combinations - Schedule of Fair Value of Assets Acquired and Liabilities Assumed UScellular Acquisition (Details)

9955534 - Disclosure - Joint Ventures (Details)

9955535 - Disclosure - Receivables and Related Allowance for Credit Losses - Narrative (Details)

9955536 - Disclosure - Receivables and Related Allowance for Credit Losses - Schedule of Equipment Installment Plan Receivables (Details)

9955537 - Disclosure - Receivables and Related Allowance for Credit Losses - Schedule of Equipment Installment Plan Receivables by Credit Category (Details)

9955538 - Disclosure - Receivables and Related Allowance for Credit Losses - Schedule of Write Offs Net of Recoveries (Details)

9955539 - Disclosure - Receivables and Related Allowance for Credit Losses - Schedule of Unamortized Imputed Discount and Allowance for Credit Losses for Equipment Installment Plan Receivables (Details)

9955540 - Disclosure - Sales of Certain Receivables - Narrative (Details)

9955541 - Disclosure - Sales of Certain Receivables - Schedule of Variable Interest Entities - EIP (Details)

9955542 - Disclosure - Sales of Certain Receivables - Schedule of Variable Interest Entities (Details)

9955543 - Disclosure - Sales of Certain Receivables - Schedule of Factoring Arrangement (Details)

9955544 - Disclosure - Property and Equipment - Schedule of Components of Property and Equipment, Excluding Amounts Transferred to Held for Sale (Details)

9955545 - Disclosure - Property and Equipment - Narrative (Details)

9955546 - Disclosure - Property and Equipment - Schedule of Asset Retirement Obligation (Details)

9955547 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Schedule of Changes in Carrying Amount of Goodwill (Details)

9955548 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Schedule of Spectrum Licenses (Details)

9955549 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Narrative (Details)

9955550 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Schedule of Other Intangible Assets and Estimated Aggregate Future Amortization Expense (Details)

9955551 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Schedule of Estimated Aggregate Future Amortization Expense (Details)

9955552 - Disclosure - Fair Value Measurements - Narrative (Details)

9955553 - Disclosure - Fair Value Measurements - Schedule of Pretax Cross Currency Swaps (Details)

9955554 - Disclosure - Fair Value Measurements - Schedule of Carrying Values and Fair Values of Short-Term and Long-term Debt (Details)

9955555 - Disclosure - Debt - Schedule of Debt (Details)

9955556 - Disclosure - Debt - Narrative (Details)

9955557 - Disclosure - Debt - Schedule of Issuances and Borrowings (Details)

9955558 - Disclosure - Debt - Schedule of Repayments (Details)

9955559 - Disclosure - Debt - Schedule of Maturities of ABS Notes (Details)

9955560 - Disclosure - Debt - Schedule of Variable Interest Entities (Details)

9955561 - Disclosure - Tower Obligations - Narrative (Details)

9955562 - Disclosure - Tower Obligations - Schedule of Impacts to Consolidated Balance Sheets (Details)

9955563 - Disclosure - Revenue from Contracts with Customers - Schedule of Disaggregation of Revenue (Details)

9955564 - Disclosure - Revenue from Contracts with Customers - Schedule of Contract Liability and Receivable Balances (Details)

9955565 - Disclosure - Revenue from Contracts with Customers - Remaining Performance Obligations, Branded Postpaid Contracts (Details)

9955566 - Disclosure - Revenue from Contracts with Customers - Contract Costs (Details)

9955567 - Disclosure - Revenue from Contracts with Customers - Remaining Performance Obligations (Details)

9955568 - Disclosure - Segment Reporting (Details)

9955569 - Disclosure - Employee Compensation and Benefit Plans - Narrative (Details)

9955570 - Disclosure - Employee Compensation and Benefit Plans - Schedule of Stock-based Compensation Expense and Related Income Tax Benefits (Details)

9955571 - Disclosure - Employee Compensation and Benefit Plans - Schedule of Restricted Stock and Unit Awards and Performance Restricted Stock Units Activity (Details)

9955572 - Disclosure - Employee Compensation and Benefit Plans - Employee Stock Purchase Plan (Details)

9955573 - Disclosure - Employee Compensation and Benefit Plans - Schedule of Pension Plan (Details)

9955574 - Disclosure - Employee Compensation and Benefit Plans - Employee Retirement Savings Plan (Details)

9955575 - Disclosure - Income Taxes - Schedule of Income Tax Domestic and Foreign (Details)

9955576 - Disclosure - Income Taxes - Schedule of Components of Income Tax Expense (Details)

9955577 - Disclosure - Income Taxes - Schedule of Effective Income Tax Reconciliation (Details)

9955578 - Disclosure - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details)

9955579 - Disclosure - Income Taxes - Narrative (Details)

9955580 - Disclosure - Income Taxes - Schedule of Unrecognized Tax Benefits (Details)

9955581 - Disclosure - Income Taxes - Income Taxes Paid, Net of Refunds (Details)

9955582 - Disclosure - Stockholder Return Programs (Details)

9955583 - Disclosure - Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings Per Share (Details)

9955584 - Disclosure - Earnings Per Share - Narrative (Details)

9955585 - Disclosure - Leases - Narrative (Details)

9955586 - Disclosure - Leases - Schedule of Components of Lease Expense (Details)

9955587 - Disclosure - Leases - Schedule of Information Related to Lease Term and Discount Rate (Details)

9955588 - Disclosure - Leases - Schedule of Maturity of Operating and Finance Lease Liabilities (Details)

9955589 - Disclosure - Commitment and Contingencies - Schedule of Timing of Purchase Obligations (Details)

9955590 - Disclosure - Commitments and Contingencies - Narrative (Details)

9955591 - Disclosure - Commitment and Contingencies - Schedule of Timing of Spectrum Lease and Service Credit Commitments (Details)

9955592 - Disclosure - Restructuring Costs - Schedule of Restructuring Plan Expenses Incurred (Details)

9955593 - Disclosure - Restructuring Costs - Narrative (Details)

9955594 - Disclosure - Restructuring Costs - Schedule of Activity Related to Reduction Initiative Expenses Incurred (Details)

9955595 - Disclosure - Restructuring Costs - Schedule of Workforce Reduction Incurred and Cash Payments Made (Details)

9955596 - Disclosure - Additional Financial Information - Schedule of Accounts Payable and Accrued Liabilities (Details)

9955597 - Disclosure - Additional Financial Information - Schedule of Related Party Transactions (Details)

9955598 - Disclosure - Additional Financial Information - Schedule of Supplemental Consolidated Statements of Cash Flows Information (Details)

9955599 - Disclosure - Additional Financial Information - Schedule of Cash and Cash Equivalents, Including Restricted Cash (Details)

9955600 - Disclosure - Subsequent Events (Details)