UScellular Wireless Assets Operations UScellular Wireless Operations Acquisition [Member] UScellular Wireless Operations Acquisition Award Timing Predetermined Award Timing Predetermined [Flag] Indefinite-lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] Entity File Number Entity File Number Par Value and Additional Paid-in Capital Additional Paid-in Capital [Member] Tabular List, Table Tabular List [Table Text Block] Ka Ena Corporation Ka Ena Corporation [Member] Ka Ena Corporation Number of renewal options Sale Leaseback Transaction, Number of Renewal Options Sale Leaseback Transaction, Number of Renewal Options Other, net (in shares) Stock Issued During Period, Shares, Other Accounting Pronouncements Adopted During the Current Year and Accounting Pronouncements Not Yet Adopted New Accounting Pronouncements, Policy [Policy Text Block] Write-offs Financing Receivable, Allowance for Credit Loss, Writeoff Outstanding stock options and unvested stock awards Share-Based Payment Arrangement [Member] 1.500% Senior Notes due 2026 1.500% Senior Notes due 2026 [Member] 1.500% Senior Notes due 2026 Other segment items Other Expenses Measurement Basis [Axis] Measurement Basis [Axis] Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Revenue from Contracts with Customers Revenue from Contract with Customer [Text Block] 3.850% Senior Notes due 2036 3.850% Senior Notes Due 2036 [Member] 3.850% Senior Notes Due 2036 Derecognized net service accounts receivable and EIP receivables Continuing Involvement with Derecognized Transferred Financial Assets, Amount Outstanding Schedule of Stock by Class [Table] Stock, Class of Stock [Table] Impact on the imputed discount from sales of EIP receivables Unamortized Imputed Discount and Allowance for Credit Losses, Impact from Sales of Receivables Unamortized Imputed Discount and Allowance for Credit Losses, Impact from Sales of Receivables Schedule of Indefinite-Lived Intangible Assets [Table] Intangible Asset, Indefinite-Lived [Table] Issuance of vested restricted stock units (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Stock issued for employee stock purchase plan (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans 2025-2026 Workforce Transformation 2025-2026 Workforce Transformation [Member] 2025-2026 Workforce Transformation Subprime Subprime [Member] Schedule of Cash and Cash Equivalents, Including Restricted Cash Schedule of Cash and Cash Equivalents [Table Text Block] Wholesale and other service revenues Wholesale and Other Service Revenue [Member] Wholesale and Other Service Revenue Adjustment to Compensation, Amount Adjustment to Compensation Amount Discounts and Issuance Costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Other current and long-term assets Increase (Decrease) in Other Operating Assets Consolidation Consolidation, Policy [Policy Text Block] Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Postpaid revenues Branded Postpaid Revenue [Member] Branded Postpaid Revenue [Member] Employee Stock Option Share-Based Payment Arrangement, Option [Member] Aggregate incremental expense Loss Contingency, Damages Awarded, Incremental Value Loss Contingency, Damages Awarded, Incremental Value EIP receivables, net of allowance for credit losses and imputed discount Financing Receivable, after Allowance for Credit Loss Merger And Unit Purchase Agreement Merger And Unit Purchase Agreement [Member] Merger And Unit Purchase Agreement Antidilutive Securities [Axis] Antidilutive Securities [Axis] 5.850% Senior Notes due 2056 5.850% Senior Notes due 2056 [Member] 5.850% Senior Notes due 2056 Dividends declared Dividends, Common Stock, Cash Total stockholders' equity Beginning balance Ending balance Equity, Attributable to Parent Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax [Abstract] Insider Trading Policies and Procedures [Line Items] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Liabilities and Stockholders' Equity Liabilities and Equity [Abstract] Cover page. Cover [Abstract] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Maximum Maximum [Member] Farmers Cellular Telephone Company Acquisition Farmers Cellular Telephone Company Acquisition [Member] Farmers Cellular Telephone Company Acquisition Bridge Loan Bridge Loan [Member] Other intangible assets, net Finite-Lived Intangible Assets, Net Debt instrument, collateral amount Debt Instrument, Collateral Amount Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Other Assets Other Assets [Member] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Spectrum licenses transferred to held for sale Indefinite-lived Intangible Assets, Transferred to Held for Sale Indefinite-lived Intangible Assets, Transferred to Held for Sale Schedule of Carrying Values and Fair Values of Short-Term and Long-term Debt Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Proceeds from issuances and borrowings Proceeds from Issuance of Debt Statement of Financial Position Location, Activity, Accrual [Axis] Statement of Financial Position Location, Activity, Accrual [Axis] Factoring and EIP Securitization Arrangement Factoring and EIP Securitization Arrangement [Member] Factoring and EIP Securitization Arrangement [Member] Tower obligation payments due thereafter Minimum Lease Payments, Failed Sale Leaseback Transactions, Thereafter Minimum Lease Payments, Failed Sale Leaseback Transactions, Thereafter Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Schedule of Supplemental Consolidated Statements of Cash Flows Information Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Stockholder Return Programs Treasury Stock [Text Block] Restructuring reserve, beginning balance Restructuring reserve, ending balance Restructuring Reserve Deeanne King [Member] Deeanne King Letter of Credit Letter of Credit [Member] Short-term operating lease liabilities Operating Lease, Liability, Current Restructuring expected period Restructuring and Related Cost, Expected Period Restructuring and Related Cost, Expected Period Document Fiscal Period Focus Document Fiscal Period Focus Award Timing Method Award Timing Method [Text Block] Award Type Award Type [Axis] Spectrum licenses Indefinite-Lived License Agreements Tower obligation payments, due next year Minimum Lease Payments, Failed Sale Leaseback Transaction, Next Twelve Months Minimum Lease Payments, Failed Sale Leaseback Transaction, Next Twelve Months Investment, Name [Domain] Investment, Name [Domain] Sale Leaseback Transaction, Name [Domain] Sale Leaseback Transaction, Name [Domain] Trading Symbol Trading Symbol Entity Address, City or Town Entity Address, City or Town Qualitative and Quantitative Information, Transferor's Continuing Involvement in Transferred Financial Assets, Transfer or Transferee [Domain] Qualitative and Quantitative Information, Transferor's Continuing Involvement in Transferred Financial Assets, Transfer or Transferee [Domain] Schedule of Write Offs Net of Recoveries Financing Receivable Credit Quality Indicators Write Offs [Table Text Block] Financing Receivable Credit Quality Indicators Write Offs Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Merger and Unit Purchase Agreement, Amendment No. 1 Merger and Unit Purchase Agreement, Amendment No. 1 [Member] Merger and Unit Purchase Agreement, Amendment No. 1 Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Income Statement Location [Domain] Statement of Income Location, Balance [Domain] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Total consideration transferred Business Combination, Consideration Transferred Entity Emerging Growth Company Entity Emerging Growth Company 2029 Long-Term Debt, Maturity, Year Three Purchases of spectrum licenses and other intangible assets, including deposits Payments to Acquire Intangible Assets Outstanding checks Outstanding Checks Outstanding Checks Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Spectrum licenses, beginning of year Spectrum licenses, end of period Indefinite-Lived Intangible Assets (Excluding Goodwill) Outstanding stock options and unvested stock awards (in shares) Incremental Common Shares Attributable to Dilutive Effect of Contingently Issuable Shares Common stock, shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Originated prior to 2025 Financing Receivable Originated More Than Two Years Before Current Fiscal Year Financing Receivable Originated More Than Two Years Before Current Fiscal Year Bad debt expense Bad debt expense Accounts Receivable, Credit Loss Expense (Reversal) Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Losses associated with the change in fair value of cross-currency swaps recognized in Accumulated other comprehensive loss Unrealized Gain (Loss), Foreign Currency Transaction, before Tax Long-term debt, proceeds from issuances and borrowings Net Proceeds from Issuance of Long-Term Debt Proceeds from Issuance of Senior Long-Term Debt Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Income tax expense Income tax expense Income Tax Expense (Benefit) 5.500% Senior Notes due June 2070 5.500% Senior Notes due June 2070 [Member] 5.500% Senior Notes due June 2070 Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Property and equipment, net Property, Plant and Equipment [Member] Schedule of Repayments Debt Instrument Redemption [Table Text Block] Notes Payable, Other Payables Notes Payable, Other Payables [Member] Restructuring Costs Restructuring and Related Activities Disclosure [Text Block] Amortization of the right-of-use assets on lease contracts Operating Lease, Right-of-Use Asset, Periodic Reduction Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Cash flow hedges, tax effect Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax, Parent Acquisition of companies, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Redemption Price Debt Instrument, Redemption Price, Percentage Senior Secured Notes Senior Secured Notes [Member] Senior Secured Notes Class of Treasury Stock [Table] Class of Treasury Stock [Table] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Optional Sale Licenses Optional Sale Licenses [Member] Optional Sale Licenses Repayments of short-term debt Repayments of Short-Term Debt Preferred stock, par value (in USD per share) Preferred Stock, Par or Stated Value Per Share Useful life (years) Property, Plant and Equipment, Useful Life Subsequent Event Subsequent Event [Member] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Weighted-average shares outstanding Weighted Average Number of Shares Outstanding, Basic [Abstract] Equity Components [Axis] Equity Components [Axis] 31 - 60 days past due Financing Receivables, 31 to 60 Days Past Due [Member] Financing Receivables, 31 to 60 Days Past Due [Member] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Number of reportable segments Number of Reportable Segments Total Redemptions Total Of Secured Bridge Loan Facility And Senior Notes To Third Parties Redeemed Member [Member] Total Of Secured Bridge Loan Facility And Senior Notes To Third Parties Redeemed Member Entity Address, State or Province Entity Address, State or Province Repayments of financing lease obligations Finance Lease, Principal Payments Financial Asset, Period Past Due [Domain] Financial Asset, Aging [Domain] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Tower Transaction Tower Transaction [Member] Tower Transaction [Member] Tower obligations Sale Leaseback Transaction, Tower Obligation Sale Leaseback Transaction, Tower Obligation Total current liabilities Liabilities, Current Sale-leasebacks Sale Leaseback Transaction, Net Book Value Incurred to Date Restructuring and Related Cost, Cost Incurred to Date Individual: Individual [Axis] Financing lease right-of-use assets obtained in exchange for lease obligations Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Dividends on common stock Dividends on common stock Payments of Ordinary Dividends, Common Stock Interest rate on tower obligations Sale Leaseback, Interest Rate Sale Leaseback, Interest Rate Service Receivable Sale Arrangement Service Receivable Sale Arrangement [Member] Service Receivable Sale Arrangement 5.500% Senior Notes due March 2070 5.500% Senior Notes due March 2070 [Member] 5.500% Senior Notes due March 2070 Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Repayments of long-term debt Repayments of Long-Term Debt Entity Interactive Data Current Entity Interactive Data Current Write-offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Originated in 2026 Financing Receivable, Year One, Originated, Current Fiscal Year 4.750% Senior Notes to affiliates due 2028 4.750% Senior Notes to affiliates due 2028 [Member] 4.750% Senior Notes to affiliates due 2028 Prime Prime [Member] Other assets Other Assets, Noncurrent Accrued interest Interest Payable, Current Entity Central Index Key Entity Central Index Key PEO Name PEO Name Schedule of Maturities of ABS Notes Schedule of Maturities of Long-Term Debt [Table Text Block] Principal amount redeemed Debt Instrument, Redeemed Face Amount Debt Instrument, Redeemed Face Amount Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Cross-Currency Swap Currency Swap [Member] Schedule of Equipment Installment Plan Receivables by Credit Category Financing Receivable Credit Quality Indicators [Table Text Block] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount 3.550% Senior Notes due 2029 3.550% Senior Notes Due 2029 [Member] 3.550% Senior Notes Due 2029 Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] 61 - 90 days past due Financing Receivables, 61 to 90 Days Past Due [Member] Financing Receivables, 61 to 90 Days Past Due [Member] License purchase agreement, minimum period before termination allowed License Purchase Agreement, Minimum Period License Purchase Agreement, Minimum Period Deferred revenue Contract with Customer, Liability, Current Exercise Price Award Exercise Price Accounts payable and accrued liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable and Accrued Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable and Accrued Liabilities Entity Filer Category Entity Filer Category Class of Stock [Domain] Class of Stock [Domain] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Liabilities for deferred consideration Business Combination, Contingent Consideration, Liability, Current Increase our cash tax liability Increase (Decrease) to Cash Tax Liability Increase (Decrease) to Cash Tax Liability Long-term debt Long-term debt, beginning balance Long-term debt, ending balance Long-term debt Long-Term Debt, Excluding Current Maturities Nonrelated Party Nonrelated Party [Member] Balance Sheet Location [Axis] Statement of Financial Position Location, Balance [Axis] EIP receivables, gross Financing Receivable, before Allowance for Credit Loss Sale Leaseback Transaction [Table] Sale Leaseback Transaction [Table] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Entity Address, Address Line One Entity Address, Address Line One Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Allowance for credit losses Accounts Receivable, Allowance for Credit Loss, Current Shares withheld related to net share settlement of stock awards and stock options (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Common Stock, par value $0.00001 per share Common Stock, Par Value $0.00001 Per Share [Member] Common Stock, Par Value $0.00001 Per Share Fair Value as of Grant Date Award Grant Date Fair Value Employee expenses Labor and Related Expense Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Property subject to failed sale leaseback transaction, number of units Sale Leaseback Transaction, Number of Units The number of unites (items of property) subject to the failed sale leaseback arrangement. Total operating expenses Costs and Expenses Sale Leaseback Transaction, Description [Axis] Sale Leaseback Transaction, Description [Axis] Entity Listings [Line Items] Entity Listings [Line Items] Document Quarterly Report Document Quarterly Report Deferred income tax expense Deferred Income Taxes and Tax Credits Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Counterparty Name [Domain] Counterparty Name [Domain] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Schedule of Accounts Payable and Accrued Liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Debt Balances and Activity [Roll Forward] Debt Balances and Activity [Roll Forward] Debt Balances and Activity Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount 2023-2024 Stockholder Return Program 2023-2024 Stockholder Return Program [Member] 2023-2024 Stockholder Return Program UScellular Acquisition Restructuring Initiatives UScellular Acquisition Restructuring Initiatives [Member] UScellular Acquisition Restructuring Initiatives Business acquisition, cash transferred Payments to Acquire Businesses, Gross Non-PEO NEO Non-PEO NEO [Member] Deferred revenue Business Combination, Recognized Liability Assumed, Deferred Revenue, Current Stock issued for employee stock purchase plan Stock Issued During Period, Value, Employee Stock Purchase Plan Allowance for credit losses Financing Receivable, Allowance for Credit Loss All Award Types Award Type [Domain] Equity Awards Adjustments Equity Awards Adjustments [Member] Advertising expense Advertising Expense Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Amount recognized in Accumulated other comprehensive loss reclassified to Other expense, net Other Income Compensation Amount Outstanding Recovery Compensation Amount Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Amounts included in the beginning of year contract liability balance Contract with Customer, Liability, Revenue Recognized Fair Value Estimate of Fair Value Measurement [Member] DT Deutsche Telekom AG [Member] Deutsche Telekom AG [Member] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Revenues Revenues [Abstract] Accumulated other comprehensive loss Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax 2027 Long-Term Debt, Maturity, Year One Schedule of Spectrum Licenses Schedule of Indefinite-Lived Intangible Assets [Table Text Block] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Reclassification of loss from cash flow hedges, net of tax effect of $17 and $16 Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Inventory Inventory, Net Minimum Minimum [Member] Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Company Selected Measure Name Company Selected Measure Name CCI Tower Lease Arrangement CCI Tower Lease Arrangement [Member] CCI Tower Lease Arrangement Fair Value Measurement [Domain] Fair Value Measurement [Domain] Debt Debt Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Operating lease payments Operating Lease, Payments Average amortization period, deferred contract costs (in months) Capitalized Contract Cost, Amortization Period Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Dividends payable Dividends Payable Allowance for credit losses and imputed discount, beginning of period Allowance for credit losses and imputed discount, end of period Unamortized Imputed Discount and Allowance for Credit Losses Unamortized amount of the imputed discount on financing receivables, which is deducted from the face amount of the receivable or loan, and valuation allowance for financing receivables that are expected to be uncollectible. Customer classes Number of Customer Classes Number of Customer Classes Collateral Held [Domain] Collateral Held [Domain] Tower obligations Failed Sale Leaseback Transaction, Tower Obligations [Member] Failed Sale Leaseback Transaction, Tower Obligations Restructuring Plan [Domain] Restructuring Plan [Domain] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Diluted (in shares) Weighted-average shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Derivative [Table] Derivative [Table] Average price paid per share (in USD per share) Stock Repurchased and Retired During Period, Average Cost Per Share Stock Repurchased and Retired During Period, Average Cost Per Share Entity Small Business Entity Small Business Business acquisition, outstanding (percent) Business Combination, Voting Equity Interest Acquired, Percentage Operating lease right-of-use assets Increase (Decrease) in Operating Lease, Right-of-Use Asset Increase (Decrease) in Operating Lease, Right-of-Use Asset Preferred shares outstanding (in shares) Preferred Stock, Shares Outstanding Document Transition Report Document Transition Report 3.150% Senior Notes due 2032 3.150% Senior Notes Due 2032 [Member] 3.150% Senior Notes Due 2032 Long-term debt Long-Term Debt [Member] 3.500% Senior Notes due 2037 3.500% Senior Notes Due 2037 [Member] 3.500% Senior Notes Due 2037 Underlying Securities Award Underlying Securities Amount Equity Component [Domain] Equity Component [Domain] Allowance for credit losses and imputed discount noncurrent Financing Receivable Allowance For Credit Loss And Imputed Discount Noncurrent Financing Receivable Allowance For Credit Loss And Imputed Discount Noncurrent Document Period End Date Document Period End Date 5.050% Class A Senior ABS Notes due 2029 5.050% Class A Senior Notes Due 2029 [Member] 5.050% Class A Senior Notes Due 2029 Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] 5.152% Series 2018-1 A-2 Notes due 2028 Senior Secured Series 2018-1 A-2 Notes due 2028, 5.152% [Member] Senior Secured Series 2018-1 A-2 Notes due 2028, 5.152% Short- and long-term operating lease liabilities Increase (Decrease) in Operating Lease Liability Document Type Document Type Level 3 Fair Value, Inputs, Level 3 [Member] Earnings Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Loss Contingencies [Table] Loss Contingencies [Table] Product and Service [Axis] Product and Service [Axis] Asset Acquisition [Domain] Asset Acquisition [Domain] Other Debt Instrument, Increase (Decrease), Other, Net Tower Tower [Member] Tower Total revenues Total revenues Revenue from Contract with Customer, Excluding Assessed Tax Short-term debt assumed for financing of property and equipment at fair value Noncash or Part Noncash Acquisition, Debt Assumed, Fair Value Noncash or Part Noncash Acquisition, Debt Assumed, Fair Value Total current assets Assets, Current Pre-tax transaction gain (loss) on remeasurement of EUR-denominated debt Gain (Loss) On Long-Term Debt PreTax Gain (Loss) On Long-Term Debt PreTax Statistical Measurement [Axis] Statistical Measurement [Axis] Oak Hill Joint Venture Oak Hill Joint Venture [Member] Oak Hill Joint Venture Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Tax withholdings on share-based awards Payment, Tax Withholding, Share-Based Payment Arrangement Additional upfront payment to be paid Business Combination, Additional Earnout Payment To Be Paid, Maximum Business Combination, Additional Earnout Payment To Be Paid, Maximum Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Current liabilities Liabilities, Current [Abstract] Spectrum Exchange Transactions Spectrum Exchange Transactions [Member] Spectrum Exchange Transactions Credit facility outstanding balance Long-Term Line of Credit Level 1 Fair Value, Inputs, Level 1 [Member] Gain on spectrum exchange transactions Gain (Loss) on Disposition of Assets Diluted (in USD per share) Earnings per share - diluted (in USD per share) Earnings Per Share, Diluted Accounts receivable, net of allowance for credit losses of $217 and $226 Accounts Receivable, after Allowance for Credit Loss, Current Restructuring and related cost, accelerated depreciation Restructuring and Related Cost, Accelerated Depreciation Tower obligation payments, due within two and three years Minimum Lease Payments, Failed Sale Leaseback Transactions, within Two and Three Years Minimum Lease Payments, Failed Sale Leaseback Transactions, within Two and Three Years Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Non-cash investing and financing activities Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Operating lease liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Operating Lease, Liability Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Operating Lease, Liability Network decommissioning Networking Decommissioning [Member] Networking Decommissioning Dividends [Axis] Dividends [Axis] Treasury stock, at cost (in shares) Beginning balance of treasury stock, (in shares) Ending balance of treasury stock, (in shares) Treasury Stock, Common, Shares EIP receivables, net of unamortized imputed discount Receivable with Imputed Interest, Net Amount Variable Interest Entity, Not Primary Beneficiary Variable Interest Entity, Not Primary Beneficiary [Member] Tower obligation payment, due within four and five years Minimum Lease Payments, Failed Sale Leaseback Transactions, within Four and Five Years Minimum Lease Payments, Failed Sale Leaseback Transactions, within Four and Five Years Operating lease right-of-use assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Right-of-Use Asset Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Right-of-Use Asset Asset acquisition, maximum transferred liabilities incurred Asset Acquisition, Maximum Transferred Liabilities Incurred Asset Acquisition, Maximum Transferred Liabilities Incurred Increase to deferred tax liabilities Increase (Decrease) in Deferred Liabilities Income tax payments, net of refunds received Income Taxes Paid, Net Non-Cash Spectrum License Acquisitions Non-Cash Spectrum License Acquisitions [Member] Non-Cash Spectrum License Acquisitions Other finance liabilities Long-Term Debt, Gross Payroll and related benefits Employee-related Liabilities, Current Factoring Arrangement Factoring Arrangement [Member] Factoring Arrangement Dividends [Domain] Dividends [Domain] Expiration Date Trading Arrangement Expiration Date Other current and long-term liabilities Increase (Decrease) in Other Operating Liabilities Stockholders' equity Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Property and equipment, net Property, Plant and Equipment, Net Total restructuring plan expenses Expenses Incurred Expenses Incurred Restructuring Charges Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Portfolio segments Number of Portfolio Segments Number of Portfolio Segments Accounts receivable Increase (Decrease) in Accounts Receivable Schedule of Restructuring and Related Costs [Table] Restructuring Cost [Table] Mandatory Convertible Preferred Stock Series A Series A Preferred Stock [Member] Entity Current Reporting Status Entity Current Reporting Status Receivables [Abstract] Receivables [Abstract] Derivative [Line Items] Derivative [Line Items] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Collateral Held [Axis] Collateral Held [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Transaction [Domain] Transaction [Domain] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Executive Category: Executive Category [Axis] Repayments Repayments of Debt Tower Obligations Sale Leaseback Transactions [Text Block] Short-term financing lease liabilities Finance Lease, Liability, Current Current Fiscal Year End Date Current Fiscal Year End Date Schedule of Equipment Installment Plan Receivables Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] 4.750% Senior Notes due 2028 4.750% Senior Notes due 2028 [Member] 4.750% Senior Notes due 2028 Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Domain] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Number of customer accounts impacted Number of Customer Accounts Impacted Number of Customer Accounts Impacted Interest Rate Contract Interest Rate Contract [Member] Net cash proceeds since inception Cash Flows Between Transferor and Transferee, Proceeds from New Transfers Business combination, potential earnout payment Business Combination, Potential Earnout Payment Business Combination, Potential Earnout Payment Cash and cash equivalents, including restricted cash Cash and Cash Equivalents [Abstract] Potentially dilutive securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Accounts payable and accrued liabilities Accounts payable and accrued liabilities Accounts payable and accrued liabilities 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Related Party [Domain] Related and Nonrelated Parties [Domain] Other current liabilities - of which, recourse guarantee Other Current Liabilities [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag Restructuring Incurred Cost Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag Other current assets Other current assets Other Assets, Current Additional paid-in capital Additional Paid in Capital, Common Stock Entity [Domain] Entity [Domain] Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Remaining performance obligation, expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 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[Member] EIP Securitization Arrangement [Member] Carrying Amount Reported Value Measurement [Member] 5.000% Senior Notes due 2036 5.000% Senior Notes due 2036 [Member] 5.000% Senior Notes due 2036 Equity [Abstract] Equity [Abstract] Third Party (EUR-denominated) Third Party (EUR-denominated) [Member] Third Party (EUR-denominated) Segment Reporting Segment Reporting Disclosure [Text Block] 3.200% Senior Notes due 2032 3.200% Senior Notes Due 2032 [Member] 3.200% Senior Notes Due 2032 Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Consideration transferred, exchange of licenses Asset Acquisition, Noncash Consideration Transferred Asset Acquisition, Noncash Consideration Transferred Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Selling, general and administrative Selling, General and Administrative Expense Repurchases of common stock 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Short-term debt, proceeds from issuances and borrowings Proceeds from Short-Term Debt Investment, Name [Axis] Investment, Name [Axis] Interest rate, stated percentage Debt Instrument, Interest Rate, Stated Percentage Operating lease liabilities Operating Lease, Liability, Noncurrent Network Optimization Restructuring Initiatives Network Optimization Restructuring Initiatives [Member] Network Optimization Restructuring Initiatives Entity Registrant Name Entity Registrant Name Amount expected to be amortized from AOCI into interest expense over next 12 months Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Bad debt expense Provision for Loan, Lease, and Other Losses Number of operating segments Number of Operating Segments Accounts Receivable Allowance Accounts Receivables, Gross [Member] Accounts Receivables, Gross [Member] Schedule of Debt Balances and Activity Schedule of Debt [Table Text Block] Related Party [Axis] Related and Nonrelated Parties [Axis] Service Service [Member] Other long-term liabilities - of which, recourse guarantee Other long-term liabilities Other Noncurrent Liabilities [Member] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Restatement Determination Date: Restatement Determination Date [Axis] Schedule of Restructuring Plan Expenses Incurred Restructuring and Related Costs [Table Text Block] Other, net Proceeds from (Payment for) Other Financing Activity Grain Management, LLC Grain Management, LLC [Member] Grain Management, LLC Name Trading Arrangement, Individual Name Supplemental Financial Statement Elements [Abstract] Supplemental Financial Statement Elements [Abstract] Supplemental Financial Statement Elements [Abstract] Other, net Stock Issued During Period, Value, Other Principal Issuances Debt Instrument, Face Amount Share Repurchase Program [Axis] Share Repurchase Program [Axis] Name Awards Close in Time to MNPI Disclosures, Individual Name Restricted cash (included in Other assets) Restricted Cash, Noncurrent Cash Payments Payments for Restructuring Restructuring Type [Axis] Restructuring Type [Axis] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Schedule of Variable Interest Entities - EIP Schedule of Variable Interest Entities - EIP [Table Text Block] schedule of variable interest entities - EIP [Table Text Block] Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Jonathan Freier [Member] Jonathan Freier Other intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Intangible Assets, Net Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Intangible Assets, Net Segments [Domain] Segments [Domain] Income Statement Location [Axis] Statement of Income Location, Balance [Axis] Short-term debt Short-Term Debt [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Balance Sheet Location [Domain] Statement of Financial Position Location, Balance [Domain] Inventory Increase (Decrease) in Inventories 4.250% Class A Senior ABS Notes due 2030 4.250% Class A Senior ABS Notes Due 2030 [Member] 4.250% Class A Senior ABS Notes Due 2030 Senior Notes Senior Notes [Member] EIP Receivables Allowance Equipment Installment Plan Receivable [Member] Equipment Installment Plan Receivable [Member] Total liabilities assumed Total liabilities assumed Business Combination, Recognized Liability Assumed, Liability Financial Asset, Period Past Due [Axis] Financial Asset, Aging [Axis] All Executive Categories All Executive Categories [Member] Common stock, par value $0.00001 per share, 2,000,000,000 shares authorized; 1,278,047,828 and 1,275,774,235 shares issued, 1,085,872,037 and 1,106,930,661 shares outstanding Common Stock, Value, Issued Financing lease right-of-use assets Finance Lease, Right-of-Use Asset, after Accumulated Amortization Prepaid expense and other current assets Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current Commitments and contingencies (Note 13) Commitments and Contingencies Business Combination [Axis] Business Combination [Axis] Loans Payable Loans Payable [Member] Revolving receivables facility, maximum borrowing capacity Revolving Receivables Facility, Maximum Borrowing Capacity Maximum borrowing capacity under the revolving receivable sale facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Remaining term of lease Sale Leaseback Transaction, Remaining Term Sale Leaseback Transaction, Remaining Term Ownership interest in joint venture (percent) Equity Method Investment, Ownership Percentage Amortization of actuarial gain, net of tax effect Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent Business combination, potential earnout payment for services Business Combination, Potential Earnout Payment for Services Business Combination, Potential Earnout Payment for Services PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Purchase Agreement Purchase Agreement [Member] Purchase Agreement Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Scenario [Axis] Scenario [Axis] Total Debt Total Debt [Member] Total Debt Deferred tax liabilities Business Combination, Recognized Liability Assumed, Deferred Tax Liability Number of separate asset purchase agreements Number Of Separate Asset Purchase Agreements Number Of Separate Asset Purchase Agreements Amount amortized from AOCI into interest expense Amount recognized in Other expense, net reclassified from Accumulated other comprehensive loss Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Derivative Contract [Domain] Derivative Contract [Domain] Number of companies included in joint venture Number of Companies Included in Joint Venture Number of Companies Included in Joint Venture Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Contract termination costs Contract Termination [Member] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Purchases of property and equipment, including capitalized interest of $(7) and $(10) Payments to Acquire Property, Plant, and Equipment Name Forgone Recovery, Individual Name Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Member] Total consideration transferred, including settlements of preexisting relationships Business Combination, Consideration Transferred, Including Settlements of Preexisting Relationships Business Combination, Consideration Transferred, Including Settlements of Preexisting Relationships Total cash consideration Asset Acquisition, Consideration Transferred, Contingent Consideration Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Spectrum license acquisitions Indefinite-Lived Intangible Assets Acquired Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items] Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items] Transaction Type [Axis] Transaction Type [Axis] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Write-off of issuance cost and consent fees Write off of Premiums, Discounts and Issuance Costs Write off of Premiums, Discounts and Issuance Costs Indefinite-lived Intangible Assets [Roll Forward] Indefinite-Lived Intangible Assets [Roll Forward] Marcelo Claure [Member] Marcelo Claure Forecast Forecast [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Title of 12(b) Security Title of 12(b) Security 3.625% Senior Notes due 2035 3.625% Senior Notes Due 2035 [Member] 3.625% Senior Notes Due 2035 Number of customer categories Number of Customer Categories Number of Customer Categories Amortization of deferred costs Capitalized Contract Cost, Amortization Earnings per share Earnings Per Share [Abstract] Restructuring Plan [Axis] Restructuring Plan [Axis] Total other expense, net Nonoperating Income (Expense) Short-term debt assumed for financing of property and equipment Noncash or Part Noncash Acquisition, Debt Assumed EIP Sale Arrangement EIP Sale Arrangement [Member] EIP Sale Arrangement Change in contracts liabilities included in deferred revenue Increase (Decrease) in Contract with Customer, Liability Schedule of Factoring Arrangement Qualitative and Quantitative Information, Transferor's Continuing Involvement [Table Text Block] Accounts Payable and Accrued Liabilities Accounts Payable and Accrued Liabilities [Member] Revolving receivables facility, outstanding borrowings Revolving Receivables Facility, Outstanding Borrowings The amount borrowed under the revolving receivables facility. Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Award Timing Disclosures [Line Items] Current - 30 days past due Financing Receivables, 1 to 30 Days Past Due [Member] Financing Receivables, 1 to 30 Days Past Due [Member] Spectrum licenses held-for-sale Asset, Held-for-Sale, Not Part of Disposal Group Legal settlement paid Payments for Legal Settlements Business acquisition, common shares acquired (percent) Business Acquisition, Percentage of Purchase Price Paid with Common Shares Business Acquisition, Percentage of Purchase Price Paid with Common Shares Effective interest rate Debt Instrument, Interest Rate During Period Qualitative and Quantitative Information, Transferor's Continuing Involvement, Transferred Financial Assets, by Transfer or Transferee [Axis] Qualitative and Quantitative Information, Transferor's Continuing Involvement, Transferred Financial Assets, by Transfer or Transferee [Axis] Net income Net income Net Income (Loss) Attributable to Parent Subsequent Event [Table] Subsequent Event [Table] Other accrued liabilities Other Accrued Liabilities, Current Preferred shares authorized (in shares) Preferred Stock, Shares Authorized Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Repurchases of common stock Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date 3.700% Senior Notes due 2032 3.700% Senior Notes Due 2032 [Member] 3.700% Senior Notes Due 2032 Contract Assets Contract with Customer, Asset, after Allowance for Credit Loss Lessee leasing arrangements, operating leases, term of contract (years) Lessee, Operating Lease, Term of Contract Operating income Operating Income (Loss) Line of Credit Line of Credit [Member] Retained earnings Retained Earnings (Accumulated Deficit) Ka’ena Acquisition earnout Contingent Consideration For Ka'ena Acquisition [Member] Contingent Consideration For Ka'ena Acquisition Weighted-average debt outstanding during period Debt Instrument, Average Amount Outstanding During Period Debt Instrument, Average Amount Outstanding During Period Prepaid revenues Branded Prepaid Revenue [Member] Branded Prepaid Revenue [Member] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Total assets acquired, including goodwill Business Combination, Assets Acquired, Including Goodwill Business Combination, Assets Acquired, Including Goodwill Class of Stock [Axis] Class of Stock [Axis] Remaining contract duration (in years) Contract With Customer, Remaining Contract Duration Contract With Customer, Remaining Contract Duration Subsequent Event Type [Domain] Subsequent Event Type [Domain] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Other expense, net Other expense, net Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Adjustments to reconcile net income to net cash provided by operating activities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Losses from sales of receivables Securitization or Asset-Backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale, Gain (Loss) on Sale Gross EIP receivables Financing Receivable, before Allowance for Credit Loss, Current Contract Liabilities Contract with Customer, Liability Financing lease liabilities Finance Lease, Liability, Noncurrent Crown Castle International Corp. Crown Castle International Corp. [Member] Crown Castle International Corp. [Member] All Adjustments to Compensation All Adjustments to Compensation [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Amendment Flag Amendment Flag 2025 Q4 Dividends Declared O 2025 Q4 Dividends [Member] O 2025 Q4 Dividends Transfers and Servicing [Abstract] Transfers and Servicing [Abstract] Treasury stock, at cost, 192,175,791 and 168,843,574 shares Treasury Stock, Common, Value Termination Date Trading Arrangement Termination Date Change in contract assets included in other current assets Increase (Decrease) in Contract with Customer, Asset Fixed-price purchase option on leased or subleased sites Leased or Subleased Sites, Fixed-Price Purchase Option Leased or Subleased Sites, Fixed-Price Purchase Option Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Type of Exchange [Axis] Type Of Exchange [Axis] Type Of Exchange Basic (in shares) Weighted-average shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Managed sites Ground Leases, Managed Sites Ground Leases, Managed Sites Schedule of Computation of Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Borrowings Borrowings [Member] Subsequent Events [Abstract] Subsequent Events [Abstract] Segment Reporting [Abstract] Impairment losses recognized on deferred contract cost assets Capitalized Contract Cost, Impairment Loss Lease expense Operating Lease, Expense Debt Disclosure [Abstract] Debt Disclosure [Abstract] Other expense, net Nonoperating Income (Expense) [Abstract] Fixed-price purchase option on lease or subleased sites, exercisable period Lease or Sublease Sites, Fixed-Price Purchase Option, Exercisable Period Lease or Sublease Sites, Fixed-Price Purchase Option, Exercisable Period Scenario [Domain] Scenario [Domain] Operating expenses Costs and Expenses [Abstract] Days prior to expiration of agreement Lease or Sublease Sites, Fixed-Price Purchase Option, Period Prior to Expiration of Agreement Lease or Sublease Sites, Fixed-Price Purchase Option, Period Prior to Expiration of Agreement Mark W. Nelson [Member] Mark W. Nelson Restructuring and Related Activities [Abstract] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Consolidated Entities [Axis] Consolidated Entities [Axis] Common stock, par value (in USD per share) Common Stock, Par or Stated Value Per Share Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Use of Estimates Use of Estimates, Policy [Policy Text Block] Equipment installment plan receivables, net of allowance for credit losses and imputed discount Equipment Installment Plan Receivables, Net [Member] Equipment installment plan receivables, net [Member] Subsequent Events Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] 2026 Q1 Dividends Declared O 2026 Q1 Dividends [Member] O 2026 Q1 Dividends Weighted average effective imputed interest rate Receivable with Imputed Interest, Effective Yield (Interest Rate) Other revenues Product and Service, Other [Member] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] 2025 Stockholder Return Program 2025 Stockholder Return Program [Member] 2025 Stockholder Return Program Note Redemptions Principal Amount Debt Instrument, Repurchased Face Amount Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Counterparty Name [Axis] Counterparty Name [Axis] 6.250% Senior Notes due 2069 6.250% Senior Notes due 2069 [Member] 6.250% Senior Notes due 2069 Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code 3.800% Senior Notes due 2045 3.800% Senior Notes Due 2045 [Member] 3.800% Senior Notes Due 2045 Non-NEOs Non-NEOs [Member]