T-Mobile US, Inc.

000010001 - Document - Cover Page

100010002 - Statement - Condensed Consolidated Balance Sheets

100020003 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)

100030004 - Statement - Condensed Consolidated Statements of Comprehensive Income

100040005 - Statement - Condensed Consolidated Statements of Comprehensive Income (Parenthetical)

100050006 - Statement - Condensed Consolidated Statements of Cash Flows

100060007 - Statement - Condensed Consolidated Statements of Cash Flows (Parenthetical)

100070008 - Statement - Condensed Consolidated Statement of Stockholders' Equity

100080009 - Statement - Condensed Consolidated Statement of Stockholders' Equity (Parenthetical)

210011001 - Disclosure - Summary of Significant Accounting Policies

210041002 - Disclosure - Business Combination

210111003 - Disclosure - Receivables and Expected Credit Losses

210161004 - Disclosure - Sales of Certain Receivables

210211005 - Disclosure - Property and Equipment

210251006 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets

210321007 - Disclosure - Spectrum License Transactions

210341008 - Disclosure - Fair Value Measurements

210381009 - Disclosure - Debt

210471010 - Disclosure - Tower Obligations

210521011 - Disclosure - Revenue from Contracts with Customers

210591012 - Disclosure - Employee Compensation and Benefit Plans

210691013 - Disclosure - Discontinued Operations and Disposal Groups

210741014 - Disclosure - Income Taxes

210761015 - Disclosure - SoftBank Equity Transaction

210781016 - Disclosure - Earnings Per Share

210821017 - Disclosure - Leases

210901018 - Disclosure - Commitments and Contingencies

210921019 - Disclosure - Restructuring Costs

210941020 - Disclosure - Additional Financial Information

211001021 - Disclosure - Subsequent Events

220022001 - Disclosure - Summary of Significant Accounting Policies (Policies)

230053001 - Disclosure - Business Combination (Tables)

230123002 - Disclosure - Receivables and Expected Credit Losses (Tables)

230173003 - Disclosure - Sales of Certain Receivables (Tables)

230223004 - Disclosure - Property and Equipment (Tables)

230263005 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets (Tables)

230353006 - Disclosure - Fair Value Measurements (Tables)

230393007 - Disclosure - Debt (Tables)

230483008 - Disclosure - Tower Obligations (Tables)

230533009 - Disclosure - Revenue from Contracts with Customers (Tables)

230603010 - Disclosure - Employee Compensation and Benefit Plans (Tables)

230703011 - Disclosure - Discontinued Operations (Tables)

230793012 - Disclosure - Earnings Per Share (Tables)

230833013 - Disclosure - Leases (Tables)

230953014 - Disclosure - Additional Financial Information (Tables)

240034001 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details)

240064002 - Disclosure - Business Combination - Narrative (Details)

240074003 - Disclosure - Business Combination - Schedule of Components of Consideration Transferred (Details)

240084004 - Disclosure - Business Combination - Schedule of Amounts Recognized as of Acquisition Date (Details)

240094005 - Disclosure - Business Combination - Schedule of Additional Detail on Receivables Acquired in Merger (Details)

240104006 - Disclosure - Business Combination - Schedule of Pro Forma Information (Details)

240134007 - Disclosure - Receivables and Expected Credit Losses - EIP Receivables (Details)

240144008 - Disclosure - Receivables and Expected Credit Losses - Gross EIP Receivables by Credit Category (Details)

240154009 - Disclosure - Receivables and Expected Credit Losses - Unamortized Imputed Discount and Allowance for Credit Losses (Details)

240184010 - Disclosure - Sales of Certain Receivables - Sales of Service Receivables (Details)

240194011 - Disclosure - Sales of Certain Receivables - Sales of EIP Receivables (Details)

240204012 - Disclosure - Sales of Certain Receivables - Sales of Receivables and Continuing Involvement (Details)

240234013 - Disclosure - Property and Equipment (Details)

240244014 - Disclosure - Property and Equipment - Asset Retirement Obligation (Details)

240274015 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Schedule of Changes in Carrying Amount of Goodwill (Details)

240284016 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Narrative (Details)

240294017 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Schedule of Fair Value of Intangible Assets Acquired in Merger (Details)

240304018 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Spectrum Licenses (Details)

240314019 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Other Intangible Assets (Details)

240334020 - Disclosure - Spectrum License Transactions - Schedule of Spectrum License Activity (Details)

240364021 - Disclosure - Fair Value Measurements - Narrative (Details)

240374022 - Disclosure - Fair Value Measurements - Fair Value of Short-term Investments and Long-term Debt (Details)

240404023 - Disclosure - Debt - Debt Balances and Activity (Details)

240414024 - Disclosure - Debt - Issuances and Borrowings (Details)

240424025 - Disclosure - Debt - Commitment Letter and Senior Secured Notes (Details)

240434026 - Disclosure - Debt - Debt Assumed (Details)

240444027 - Disclosure - Debt - Notes Redemptions and Repayments (Details)

240454028 - Disclosure - Debt - Financing Matters Agreement, Senior Notes to Affiliates, Spectrum Financing and Consents on Debt to Third-Parties (Details)

240464029 - Disclosure - Debt - Standby Letters of Credit (Details)

240494030 - Disclosure - Tower Obligations - Narrative (Details)

240504031 - Disclosure - Tower Obligations - Sale Leaseback Transaction (Details)

240514032 - Disclosure - Tower Obligations - Future Minimum Payments (Details)

240544033 - Disclosure - Revenue from Contracts with Customers - Disaggregation of Revenue (Details)

240554034 - Disclosure - Revenue from Contracts with Customers - Contract Balances (Details)

240564035 - Disclosure - Revenue from Contracts with Customers - Remaining Performance Obligations, Branded Postpaid Contracts (Details)

240574036 - Disclosure - Revenue from Contracts with Customers - Remaining Performance Obligations (Details)

240584037 - Disclosure - Revenue from Contracts with Customers - Contract Costs (Details)

240614038 - Disclosure - Employee Compensation and Benefit Plans - Narrative (Details)

240624039 - Disclosure - Employee Compensation and Benefit Plans - Schedule of Stock-based Compensation Expense and Related Income Tax Benefits (Details)

240634040 - Disclosure - Employee Compensation and Benefit Plans - Stock Awards (Details)

240644041 - Disclosure - Employee Compensation and Benefit Plans - Schedule of Restricted Stock and Unit Awards and Performance Restricted Stock Units Activity (Details)

240654042 - Disclosure - Employee Compensation and Benefit Plans - Employee Stock Purchase Plan (Details)

240664043 - Disclosure - Employee Compensation and Benefit Plans - Stock Options (Details)

240674044 - Disclosure - Employee Compensation and Benefit Plans - Pension Plan (Details)

240684045 - Disclosure - Employee Compensation and Benefit Plans - Employee Retirement Savings Plan (Details)

240714046 - Disclosure - Discontinued Operations - Narrative (Details)

240724047 - Disclosure - Discontinued Operations - Components of Assets and Liabilities Held for Sale (Details)

240734048 - Disclosure - Discontinued Operations - Components of Discontinued Operations from Merger Date (Details)

240754049 - Disclosure - Income Taxes - Narrative (Details)

240774050 - Disclosure - SoftBank Equity Transaction - Narrative (Details)

240804051 - Disclosure - Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details)

240814052 - Disclosure - Earnings Per Share - Narrative (Details)

240844053 - Disclosure - Leases - Narrative (Details)

240854054 - Disclosure - Leases - Schedule of Lease Expense (Details)

240864055 - Disclosure - Leases - Schedule of Information Related to Lease Term and Discount Rate (Details)

240874056 - Disclosure - Leases - Schedule of Future Minimum Operating and Finance Lease Maturities (Details)

240884057 - Disclosure - Leases - Leased Wireless Devices (Details)

240894058 - Disclosure - Leases - Schedule of Future Minimum Payments Expected to be Received (under 842) (Details)

240914059 - Disclosure - Commitments and Contingencies - Narrative (Details)

240934060 - Disclosure - Restructuring Costs (Details)

240964061 - Disclosure - Additional Financial Information - Accounts Payable and Accrued Liabilities (Details)

240974062 - Disclosure - Additional Financial Information - Related Party Transactions (Details)

240984063 - Disclosure - Additional Financial Information - Financial Information Associated with Supply Chain and Inventory Management Arrangements (Details)

240994064 - Disclosure - Additional Financial Information - Supplemental Consolidated Statements of Cash Flows Information (Details)

241014065 - Disclosure - Subsequent Events - Narrative (Details)