T-Mobile US, Inc.

000010001 - Document - Cover Page

100020004 - Statement - Consolidated Balance Sheets (Parenthetical)

100030005 - Statement - Consolidated Statements of Comprehensive Income

100040006 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical)

100050007 - Statement - Consolidated Statements of Cash Flows

100060008 - Statement - Consolidated Statements of Cash Flows (Parenthetical)

100070009 - Statement - Consolidated Statement of Stockholders' Equity

100080010 - Statement - Consolidated Statement of Stockholders' Equity (Parenthetical)

000020002 - Document - Audit Information

210011001 - Disclosure - Summary of Significant Accounting Policies

210041002 - Disclosure - Business Combinations

210101003 - Disclosure - Receivables and Related Allowance for Credit Losses

210151004 - Disclosure - Sales of Certain Receivables

210201005 - Disclosure - Property and Equipment

210241006 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets

210311007 - Disclosure - Fair Value Measurements

210351008 - Disclosure - Debt

210421009 - Disclosure - Tower Obligations

210461010 - Disclosure - Revenue from Contracts with Customers

210531011 - Disclosure - Employee Compensation and Benefit Plans

210631012 - Disclosure - Discontinued Operations

210671013 - Disclosure - Income Taxes

210751014 - Disclosure - SoftBank Equity Transaction

210771015 - Disclosure - Earnings Per Share

210811016 - Disclosure - Leases

210891017 - Disclosure - Commitments and Contingencies

210911018 - Disclosure - Restructuring Costs

210961019 - Disclosure - Additional Financial Information

211011020 - Disclosure - Subsequent Events

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

230053001 - Disclosure - Business Combinations (Tables)

230113002 - Disclosure - Receivables and Related Allowance for Credit Losses (Tables)

230163003 - Disclosure - Sales of Certain Receivables (Tables)

230213004 - Disclosure - Property and Equipment (Tables)

230253005 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets (Tables)

230323006 - Disclosure - Fair Value Measurements (Tables)

230363007 - Disclosure - Debt (Tables)

230433008 - Disclosure - Tower Obligations (Tables)

230473009 - Disclosure - Revenue from Contracts with Customers (Tables)

230543010 - Disclosure - Employee Compensation and Benefit Plans (Tables)

230643011 - Disclosure - Discontinued Operations (Tables)

230683012 - Disclosure - Income Taxes (Tables)

230783013 - Disclosure - Earnings Per Share (Tables)

230823014 - Disclosure - Leases (Tables)

230923015 - Disclosure - Restructuring Costs (Tables)

230973016 - Disclosure - Additional Financial Information (Tables)

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

240064002 - Disclosure - Business Combinations - Narrative (Details)

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

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

240094005 - Disclosure - Business Combinations - Schedule of Pro Forma Information (Details)

240124006 - Disclosure - Receivables and Related Allowance for Credit Losses - EIP Receivables (Details)

240134007 - Disclosure - Receivables and Related Allowance for Credit Losses - Gross EIP Receivables by Credit Category (Details)

240144008 - Disclosure - Receivables and Related Allowance for Credit Losses - Unamortized Imputed Discount and Allowance for Credit Losses (Details)

240174009 - Disclosure - Sales of Certain Receivables - Sales of EIP Receivables (Details)

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

240194011 - Disclosure - Sales of Certain Receivables - Sales of Receivables and Continuing Involvement (Details)

240224012 - Disclosure - Property and Equipment (Details)

240234013 - Disclosure - Property and Equipment - Asset Retirement Obligation (Details)

240264014 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Schedule of Changes in Carrying Amount of Goodwill (Details)

240274015 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Narrative (Details)

240284016 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Schedule of Fair Value of Intangible Assets Acquired in the Sprint Merger (Details)

240294017 - Disclosure - Goodwill, Spectrum License Transactions and Other Intangible Assets - Spectrum Licenses (Details)

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

240334019 - Disclosure - Fair Value Measurements - Narrative (Details)

240344020 - Disclosure - Fair Value Measurements - Fair Value of Short-term Investments and Long-term Debt (Details)

240374021 - Disclosure - Debt - Schedule of Debt (Details)

240384022 - Disclosure - Debt - Additional Information (Details)

240394023 - Disclosure - Debt - Issuances and Borrowings (Details)

240404024 - Disclosure - Debt - Debt Assumed (Details)

240414025 - Disclosure - Debt - Note Redemption (Details)

240444026 - Disclosure - Tower Obligations - Narrative (Details)

240454027 - Disclosure - Tower Obligations - Sale Leaseback Transaction (Details)

240484028 - Disclosure - Revenue from Contracts with Customers - Disaggregation of Revenue (Details)

240494029 - Disclosure - Revenue from Contracts with Customers - Contract Balances (Details)

240504030 - Disclosure - Revenue from Contracts with Customers - Remaining Performance Obligations, Branded Postpaid Contracts (Details)

240514031 - Disclosure - Revenue from Contracts with Customers - Remaining Performance Obligations (Details)

240524032 - Disclosure - Revenue from Contracts with Customers - Contract Costs (Details)

240554033 - Disclosure - Employee Compensation and Benefit Plans - Narrative (Details)

240564034 - Disclosure - Employee Compensation and Benefit Plans - Schedule of Stock-based Compensation Expense and Related Income Tax Benefits (Details)

240574035 - Disclosure - Employee Compensation and Benefit Plans - Stock Awards (Details)

240584036 - Disclosure - Employee Compensation and Benefit Plans - Schedule of Restricted Stock and Unit Awards and Performance Restricted Stock Units Activity (Details)

240594037 - Disclosure - Employee Compensation and Benefit Plans - Employee Stock Purchase Plan (Details)

240604038 - Disclosure - Employee Compensation and Benefit Plans - Stock Options (Details)

240614039 - Disclosure - Employee Compensation and Benefit Plans - Pension Plan (Details)

240624040 - Disclosure - Employee Compensation and Benefit Plans - Employee Retirement Savings Plan (Details)

240654041 - Disclosure - Discontinued Operations - Narrative (Details)

240664042 - Disclosure - Discontinued Operations - Components of Discontinued Operations from Merger Date (Details)

240694043 - Disclosure - Income Taxes - Income Tax Domestic and Foreign (Details)

240704044 - Disclosure - Income Taxes - Components of Income Tax Expense (Details)

240714045 - Disclosure - Income Taxes - Effective Income Tax Rate Reconciliation (Details)

240724046 - Disclosure - Income Taxes - Deferred Tax Assets and Liabilities (Details)

240734047 - Disclosure - Income Taxes - Narrative (Details)

240744048 - Disclosure - Income Taxes - Unrecognized Tax Benefits (Details)

240764049 - Disclosure - SoftBank Equity Transaction - Narrative (Details)

240794050 - Disclosure - Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details)

240804051 - Disclosure - Earnings Per Share - Narrative (Details)

240834052 - Disclosure - Leases - Narrative (Details)

240844053 - Disclosure - Leases - Schedule of Lease Expense (Details)

240854054 - Disclosure - Leases - Schedule of Information Related to Lease Term and Discount Rate (Details)

240864055 - Disclosure - Leases - Schedule of Future Minimum Operating and Finance Lease Maturities (Details)

240874056 - Disclosure - Leases - Leased Wireless Devices (Details)

240884057 - Disclosure - Leases - Schedule of Future Minimum Payments Expected to be Received (under 842) (Details)

240904058 - Disclosure - Commitments and Contingencies - Narrative (Details)

240934059 - Disclosure - Restructuring Costs - Restructuring Plan Expenses Incurred (Details)

240944060 - Disclosure - Restructuring Costs - Narrative (Details)

240954061 - Disclosure - Restructuring Costs - Activity Related to Expenses Incurred and Cash Payments Made (Details)

240984062 - Disclosure - Additional Financial Information - Accounts Payable and Accrued Liabilities (Details)

240994063 - Disclosure - Additional Financial Information - Related Party Transactions (Details)

241004064 - Disclosure - Additional Financial Information - Supplemental Consolidated Statements of Cash Flows Information (Details)

241024065 - Disclosure - Subsequent Events - Narrative (Details)

100010003 - Statement - Consolidated Balance Sheets