Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Finite-lived intangible assets, remaining amortization period Intangible Asset, Finite-Lived, Remaining Amortization Period WEIGHTED AVERAGE COMMON SHARES OUTSTANDING (in thousands): Weighted Average Number of Shares Outstanding, Diluted [Abstract] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum Maximum [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Title of 12(b) Security Title of 12(b) Security Subsequent Event Subsequent Event [Member] NET INCOME ATTRIBUTABLE TO AMERICAN TOWER CORPORATION COMMON STOCKHOLDERS, DILUTED Net income attributable to American Tower Corporation common stockholders, diluted Net Income (Loss) Available to Common Stockholders, Diluted Document Fiscal Year Focus Document Fiscal Year Focus Adjustment to Compensation, Amount Adjustment to Compensation Amount Deferred payments, including post-closing adjustments, associated with an acquisition Accrued Expenses, Deferred Payment Of Post-Closing Adjustments Amount Accrued Expenses, Deferred Payment Of Post-Closing Adjustments, Amount Operating leases: Operating leases: Operating Leases [Abstract] Operating Leases [Abstract] Segment Operating Profit Operating Income (Loss), Operating Segments [Member] Operating Income (Loss), Operating Segments Segment Reporting [Abstract] Segment Reporting [Abstract] Property Direct Costs of Leased and Rented Property or Equipment Schedule of Expected Future Amortization Expenses Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block] ATC Europe ATC Europe [Member] ATC Europe [Member] Common stock: $0.01 par value; 1,000,000 shares authorized; 480,181 and 479,358 shares issued; and 464,172 and 466,318 shares outstanding, respectively Common Stock, Value, Issued 2027 Lessee, Operating Lease, Liability, to be Paid, Year One Schedule of RSU Activity Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Depreciation, amortization and accretion Depreciation, Amortization and Accretion, Net Payroll and related withholdings Employee-related Liabilities, Current 4.100% Senior Notes due 2034 4.100% senior notes 4.100% Senior Notes, Due 2034 [Member] 4.100% Senior Notes, Due 2034 Schedule of Long-Term Debt Instruments Schedule of Long-Term Debt Instruments [Table Text Block] Unrecognized tax benefits, reduction due to settlements Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Depreciation, amortization and accretion Depreciation, Amortization And Accretion, Including Discontinued Operations Depreciation, Amortization And Accretion, Including Discontinued Operations Series 2018-1A securities Secured Tower Revenue Securities, Series 2018-1A [Member] Secured Tower Revenue Securities, Series 2018-1A [Member] 3.700% senior notes 3.700% Senior Notes, Due 2049 [Member] Three Point Seven Zero Zero Percent Senior Notes Due 2049 [Member] Restatement Determination Date Restatement Determination Date 3.625% Senior Notes due 2032 3.625% senior notes 3.625% Senior Notes, Due 2032 [Member] 3.625% Senior Notes, Due 2032 4.700% senior notes 4.700% Senior Notes Due 2032 [Member] 4.700% Senior Notes Due 2032 Total Long-term debt obligations, including the current portion Long-Term Debt and Lease Obligation, Including Current Maturities Accrued property and real estate taxes Accrued Property And Real Estate Taxes Accrued Property And Real Estate Taxes Measurement Frequency [Axis] Measurement Frequency [Axis] 5.400% senior notes 5.400% senior notes, Due 2035 [Member] 5.400% senior notes, Due 2035 Schedule of Prepaid and Other Current Assets Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block] Amendment Flag Amendment Flag Consolidated Entities [Axis] Consolidated Entities [Axis] Goodwill [Line Items] Goodwill [Line Items] CURRENT LIABILITIES: Liabilities, Current [Abstract] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding U.S. & Canada Property, US And Canada [Member] Property, US And Canada Disposal Group Classification [Axis] Disposal Group Classification [Axis] Loss Contingencies [Table] Loss Contingencies [Table] Leases [Abstract] Leases [Abstract] Consolidated Entities [Domain] Consolidated Entities [Domain] Number of optional renewal periods Number Of Annual Renewal Periods Number Of Annual Renewal Periods Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share 2007 Plan 2007 Plan [Member] Two Thousand Seven Plan [Member] Assets: Assets, Fair Value Disclosure [Abstract] Capital expenditures Segment Reporting, Long-Lived Asset, Expenditure for Addition Asset Acquisition [Axis] Asset Acquisition [Axis] 3.650% senior notes 3.650% Senior Notes, Due 2027 [Member] 3.650% Senior Notes, Due 2027 OTHER INTANGIBLE ASSETS, net Intangible Asset, Excluding Goodwill, after Accumulated Amortization Outstanding at beginning of period (in shares) Outstanding at end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Share Repurchase Program [Domain] Share Repurchase Program [Domain] BASIC (in shares) Basic weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Increase in assets Increase (Decrease) in Operating Assets ASSET RETIREMENT OBLIGATIONS Asset Retirement Obligation Loss Contingencies [Line Items] Loss Contingencies [Line Items] 1.500% senior notes 1.500% Senior Notes, Due 2028 [Member] 1.500% Senior Notes, Due 2028 Total current liabilities Liabilities, Current 2030 Lessee, Operating Lease, Liability, to be Paid, Year Four Acquired tenant-related intangibles Customer Relationships [Member] 5.800% senior notes 5.800% Senior Notes Due 2028 [Member] 5.800% Senior Notes Due 2028 Entity Address, City or Town Entity Address, City or Town Aggregate purchase price Asset Acquisition, Consideration Transferred South Africa Fiber South Africa Fiber [Member] South Africa Fiber Awards granted (in shares) Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Title and Position [Domain] Title and Position [Domain] Document Information [Line Items] Document Information [Line Items] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Vested and Released (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Class of Stock [Axis] Class of Stock [Axis] Net Book Value Intangible Asset, Finite-Lived, after Accumulated Amortization Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount NET INCOME ATTRIBUTABLE TO AMERICAN TOWER CORPORATION COMMON STOCKHOLDERS, BASIC Net income attributable to American Tower Corporation common stockholders, basic Net Income (Loss) Available to Common Stockholders, Basic Level 2 Fair Value, Inputs, Level 2 [Member] Accumulated Amortization Intangible Asset, Finite-Lived, Accumulated Amortization OTHER INCOME (EXPENSE): Nonoperating Income (Expense) [Abstract] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] ATC Canada ATC Canada [Member] ATC Canada Line of credit maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Africa & APAC Property, Africa & APAC [Member] Property, Africa & APAC Other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] 2029 Lessor, Operating Lease, Payment to be Received, Year Three Current portion of long-term obligations Long-Term Debt, Current Maturities Distributions paid on common stock Payments of Ordinary Dividends, Common Stock And Share-Based Payment Arrangement Payments of Ordinary Dividends, Common Stock And Share-Based Payment Arrangement Other expense Other Expenses American Tower Corporation Parent Company [Member] U.S. UNITED STATES Decrease (increase) in net deferred rent balances Straight Line Rent Subsequent Event Type [Axis] Subsequent Event Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Axis] 2021 Credit Facility 2021 Credit Facility 2021 Credit Facility [Member] 2021 Credit Facility Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Accounting Standards Updates New Accounting Pronouncements, Policy [Policy Text Block] Changes in unearned revenue Increase (Decrease) in Contract with Customer, Liability Schedule of Summarized Financial Information Concerning the Company's Reportable Segments Segment Reporting [Table Text Block] Noncontrolling Interests Noncontrolling Interest [Member] Schedule of Contractual Amounts of Outstanding Instruments Schedule Of Notional Amounts Of Outstanding Nonderivative Positions [Table Text Block] Schedule Of Notional Amounts Of Outstanding Nonderivative Positions Unsecured debt Unsecured Debt [Member] Revenue Revenue from Contract with Customer [Policy Text Block] Schedule of Accrued Expenses Schedule of Accrued Liabilities [Table Text Block] NONCONTROLLING INTERESTS Noncontrolling Interest Disclosure [Text Block] France Subsidiaries Operating In France [Member] Subsidiaries Operating In France Repayment under credit facilities Repayments of Lines of Credit Seller financed acquisition Other Significant Noncash Transaction, Value of Consideration Given AT Iberia C.V. AT Iberia Cv [Member] AT Iberia C.V Europe Property, Europe [Member] Property, Europe Stonepeak Stonepeak Partners LP [Member] Stonepeak Partners LP Long-term debt Debt outstanding Senior unsecured notes designated Long-Term Debt Schedule of Maturity of Operating Lease Liabilities Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] NON-CASH INVESTING AND FINANCING ACTIVITIES: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Document Period End Date Document Period End Date Accounting Policies [Table] Accounting Policies [Table] Accounting Policies [Table] Cash used for investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] American Tower subsidiary Subsidiaries [Member] Aggregate principal amount issued Aggregate Principal Amount Debt Instrument, Face Amount 2028 Lessee, Operating Lease, Liability, to be Paid, Year Two EQUITY Equity [Text Block] OPERATING EXPENSES: Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Treasury stock (16,009 and 13,040 shares at cost, respectively) Treasury stock repurchased amount Treasury Stock, Common, Value Accrued dividend RSU Accrued Dividend RSU Accrued dividends payable upon the vesting of restricted stock units. Contributions from noncontrolling interest holders Proceeds from Noncontrolling Interests LEASES Lessor, Operating Leases [Text Block] 4.125% Senior Notes Due 2027 4.125% senior notes 4.125% Senior Notes Due 2027 [Member] 4.125 Percent Senior Notes Due 2027 Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Number of shares issuable under stock incentive plan (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized 2.950% senior notes 2.950% Senior Notes, Due 2051 [Member] 2.950% Senior Notes, Due 2051 Current portion of operating lease liability Current portion of lease liability Less current portion of lease liability Operating Lease, Liability, Current Value added tax and other consumption tax receivables Value Added Tax Receivable Accrued interest Accrued and unpaid interest Interest Payable, Current Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] EARNINGS PER COMMON SHARE Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name NET INCOME PER COMMON SHARE AMOUNTS: Earnings Per Share [Abstract] Earnings Per Share [Abstract] Costs of operations (exclusive of items shown separately below): Cost of Product and Service Sold [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] 3.600% senior notes 3.600% Senior Notes, Due 2028 [Member] Three Point Six Zero Zero Percent Senior Notes [Member] Total liabilities Liabilities Trading Symbol Trading Symbol Geographical [Domain] Geographical [Domain] Payments for purchase of property and equipment and construction activities Payments to Acquire Property, Plant, and Equipment 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] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Accrued income tax payable Accrued Income Taxes, Current Company Selected Measure Name Company Selected Measure Name Distributions to noncontrolling interest holders Payments of Ordinary Dividends, Noncontrolling Interest Schedule of Restricted Cash Restrictions on Cash and Cash Equivalents [Table Text Block] 1.250% Senior Notes due 2033 1.250% senior notes 1.250% Senior Notes, Due 2033 [Member] 1.250% Senior Notes, Due 2033 Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] 0.950% Senior Notes due 2030 0.950% senior notes 0.950% Senior Notes, Due 2030 [Member] 0.950% Senior Notes, Due 2030 Controlling ownership interest percentage (as a percent) Subsidiary, Ownership Percentage, Parent Outstanding principal balance Long-Term Debt, Gross Current commitment fee, percentage Line of Credit Facility, Commitment Fee Percentage Credit Facility [Domain] Credit Facility [Domain] CoreSite preferred equity conversion Reallocation of noncontrolling interest due to equity conversion Noncontrolling Interest, Increase (Decrease) from Equity Conversion Noncontrolling Interest, Increase (Decrease) from Equity Conversion Compensation Amount Outstanding Recovery Compensation Amount Distributions payable Dividends Payable, Current Individual: Individual [Axis] Percentage of interests acquired (as a percent) Business Combination, Voting Equity Interest Acquired, Percentage DILUTED (in shares) Diluted weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Distribution per share (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Acquired licenses and other intangibles Acquired Licenses And Other Intangibles [Member] Acquired Licenses And Other Intangibles Member Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] ATC Philippines ATC Philippines [Member] ATC Philippines Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Disposal Group Name [Domain] Disposal Group Name [Domain] Line of Credit Facility [Table] Line of Credit Facility [Table] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Dividends declared Dividends Paid dividend RSU Paid Dividend RSU Amount of distributions payable paid upon the vesting of restricted stock units during the period. Percentage of potential target shares Percentage Of Potential Target Shares Percentage of potential target shares to be earned under Performance Share agreement 2021 Term Loan 2021 Term Loan 2021 Term Loan [Member] 2021 Term Loan Borrowings under credit facilities Proceeds from Lines of Credit PROPERTY AND EQUIPMENT, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization 1.950% senior notes 1.950% Senior Notes, Due 2026 [Member] One Point Nine Five Zero Percent Senior Notes [Member] Property Property Revenue [Member] Property Revenue [Member] Less amounts representing interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Segment gross margin Gross Profit 2024 PSUs 2024 PSUs [Member] 2024 PSUs Dilutive securities (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment 2023 PSUs 2023 PSUs [Member] 2023 PSUs Foreign currency translation adjustments, tax expense (benefit) OCI, Foreign Currency Transaction and Translation Gain (Loss), Arising During Period, Tax Discount from market price (in percent) Share-Based Compensation Arrangement by Share-Based Payment Award, Discount from Market Price, Purchase Date Operating cash flows from operating leases Operating Lease, Payments Award Timing Predetermined Award Timing Predetermined [Flag] Treasury Stock Treasury Stock, Common [Member] Intangible Asset, Goodwill and Other [Abstract] Intangible Asset, Goodwill and Other [Abstract] Undrawn letters of credit Letters of Credit Outstanding, Amount Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Level 1 Fair Value, Inputs, Level 1 [Member] 3.900% Senior Notes due 2030 3.900% senior notes 3.900% Senior Notes, Due 2030 [Member] 3.900% Senior Notes, Due 2030 Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Total lease payments Lessee, Operating Lease, Liability, to be Paid Series 2023-1A Securities Secured Tower Revenue Securities, Series 2023-1A [Member] Secured Tower Revenue Securities, Series 2023-1A Lessor, Lease, Description [Table] Lessor, Lease, Description [Table] Weighted average grant date fair value (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value All Executive Categories All Executive Categories [Member] Confidence Group Confidence Group [Member] Confidence Group 2025 PSUs 2025 PSUs [Member] 2025 PSUs Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Long-term debt, fair value Long-Term Debt, Fair Value Plan Name [Domain] Plan Name [Domain] Scenario [Domain] Scenario [Domain] Asset Acquisition [Domain] Asset Acquisition [Domain] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] RIGHT-OF-USE ASSET Right-of-use asset Operating Lease, Right-of-Use Asset Concentration Risk Type [Domain] Concentration Risk Type [Domain] Lease renewal term Lessee, Operating Lease, Renewal Term Schedule of Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Less current portion of long-term obligations Long-Term Debt and Lease Obligation, Current BUSINESS SEGMENTS Segment Reporting [Text Block] Minimum Minimum Minimum [Member] Aggregate Payment Amount Payments of Ordinary Dividends, Common Stock Expiration Date Trading Arrangement Expiration Date Hedging Relationship [Axis] Hedging Relationship [Axis] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Schedule of Revenue Disaggregated by Source and Geography Disaggregation of Revenue [Table Text Block] LIABILITIES Liabilities [Abstract] Net effect of changes in foreign currency exchange rates on cash and cash equivalents, and restricted cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Proceeds from other borrowings Proceeds from Other Debt Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Schedule of Information About Other Lease-Related Balances Lease, Assets And Liabilities [Table Text Block] Lease, Assets And Liabilities [Table Text Block] Total equity Balance at beginning of period Balance at end of period Equity, Including Portion Attributable to Noncontrolling Interest 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] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] DEFERRED RENT ASSET Deferred Rent Receivables, Net, Noncurrent Unbilled receivables Unbilled Receivables, Current Dividends declared for common stock Dividends, Common Stock 3.100% senior notes 3.100% Senior Notes, Due 2050 [Member] 3.100% Senior Notes, Due 2050 Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] 5.750% senior notes 5.750% Senior Notes, Due 2036 [Member] 5.750% Senior Notes, Due 2036 Percentage of ownership after transaction (as a percent) Sale of Stock, Percentage of Ownership after Transaction Common stock, shares authorized (in shares) Common Stock, Shares Authorized Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Estimated Useful Lives (years) Intangible Asset, Finite-Lived, Useful Life Exercise Price Award Exercise Price 5.900% senior notes 5.900% Senior Notes Due 2033 [Member] 5.900% Senior Notes Due 2033 Fair Value, Measurements, Recurring Fair Value, Recurring [Member] Segment Reporting [Line Items] Segment Reporting [Line Items] Stock repurchase program, authorized amount Share Repurchase Program, Authorized, Amount 2.750% senior notes 2.750% Senior Notes, Due 2027 [Member] Two Point Seven Five Zero Percent Senior Notes Due 2027 [Member] Unrecognized compensation expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Quarterly Report Document Quarterly Report 2027 Lessor, Operating Lease, Payment to be Received, Year One 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] Segments [Domain] Segments [Domain] Accrued Liabilities, Current [Abstract] Debt Instrument, Redemption Option [Axis] Debt Instrument, Redemption Option [Axis] Debt Instrument, Redemption Option Property straight-line revenue Straight-Line Revenue Straight-line revenue recognized over the term of non-cancellable tenant leases that contain fixed escalation clauses. Penalties and income tax-related interest expense Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense LONG-TERM OBLIGATIONS Debt Disclosure [Text Block] Scenario [Axis] Scenario [Axis] Customer lease, initial term Customer Lease Initial Term Customer Lease Initial Term AT&T Transaction AT And T Transaction [Member] At&T Transaction [Member] Proceeds from sale of short-term investments and other non-current assets Proceeds From Sale Of Available For Sale Securities And Other Productive Assets The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. Also includes the cash inflow from the sale of other tangible or intangible assets used to produce goods or deliver services not otherwise defined in the taxonomy. Disposal Group Classification [Domain] Disposal Group Classification [Domain] 2021 Multicurrency Credit Facility 2021 Multicurrency Credit Facility [Member] 2021 Multicurrency Credit Facility Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Number of sites acquired Number Of Sites Acquired Number Of Communications Sites Acquired Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Secured debt Secured Debt [Member] Services Services Segment [Member] Services Segment Total operating expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Kirtonkhola Tower Bangladesh Limited Kirtonkhola Tower Bangladesh Limited [Member] Kirtonkhola Tower Bangladesh Limited Right to lease, weighted average term Right To Lease, Weighted Average Term Weighted average period for which the Company has the exclusive right to lease and operate certain sites Total consideration received upon disposal Disposal Group, Including Discontinued Operation, Consideration Communication Sites Communication Sites [Member] Communication Sites Counterparty Name [Domain] Counterparty Name [Domain] Debt interest rate (as a percent) Stated interest rate (as a percent) Contractual Interest Rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Total American Tower Corporation equity Equity, Attributable to Parent PREPAID AND OTHER CURRENT ASSETS Other Current Assets [Text Block] Total other expense Nonoperating Income (Expense) Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Contractual amount Notional Amount of Nonderivative Instruments ASSETS Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Risk-free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 1.600% senior notes 1.600% Senior Notes, Due 2026 [Member] 1.600% Senior Notes, Due 2026 Total lease liability Operating Lease, Liability Insider Trading Policies and Procedures [Line Items] Outstanding at beginning of period (in shares) Outstanding at end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Finance lease obligations Finance Lease, Liability ACCRUED EXPENSES Accounts Payable and Accrued Liabilities Disclosure [Text Block] Deferred financing costs and other financing activities Proceeds from (Payment for) Other Financing Activity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Income tax refunds Proceeds from Income Tax Refunds PSUs Performance Shares [Member] Prepaid and other current assets Prepaid and other current assets Prepaid Expense and Other Assets, Current Selling, general, administrative and development expense Segment selling, general, administrative and development expense Selling, General and Administrative Expense 5.000% senior notes 5.000% senior notes Due 2030 [Member] 5.000% senior notes Due 2030 Maximum adjusted EBITDA Maximum Adjusted EBITDA The maximum times Adjusted EBITDA for liens covenant as defined in the Senior Notes agreement. Business Combination [Domain] Business Combination [Domain] Number of operating markets Number Of Operating Markets Number Of Operating Markets Aggregate purchase option price for towers Aggregate Purchase Option Price For Towers Aggregate Purchase Option Price For Towers Contributions from noncontrolling interest holders Noncontrolling Interest, Increase from Subsidiary Equity Issuance Accrued construction costs Construction Payable, Current Segment Gross Margin Gross Profit, Operating Segments [Member] Gross Profit, Operating Segments COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Property lease revenue Operating Lease, Lease Income Shares excluded from dilutive effect (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Restricted stock units RSUs Restricted Stock Units (RSUs) [Member] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of Changes in the Carrying Value of Goodwill Goodwill [Table Text Block] Entity Central Index Key Entity Central Index Key Weighted Average Weighted Average [Member] 5.350% senior notes 5.350% Senior Notes, Due 2035 [Member] 5.350% Senior Notes, Due 2035 All Adjustments to Compensation All Adjustments to Compensation [Member] Business Combination [Axis] Business Combination [Axis] Equity [Abstract] Equity [Abstract] 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] Cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation AT Europe C.V. ATC Europe C.V. [Member] ATC Europe C.V. Debt Instrument, Redemption Option [Domain] Debt Instrument, Redemption Option [Domain] Debt Instrument, Redemption Option [Domain] Income Statement [Abstract] Income Statement [Abstract] Issuance of common stock - stock purchase plan (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Document Transition Report Document Transition Report 0.400% Senior Notes due 2027 0.400% senior notes 0.400% Senior Notes, Due 2027 [Member] 0.400% Senior Notes, Due 2027 Ownership [Axis] Ownership [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] 1.000% Senior Notes due 2032 1.000% senior notes 1.000% Senior Notes, Due 2032 [Member] 1.000% Senior Notes, Due 2032 Preferred stock, dividend rate (as a percent) Preferred Stock, Dividend Rate, Percentage Share Repurchase Program [Table] Share Repurchase Program [Table] DEFERRED TAX ASSET Deferred Income Tax Assets, Net Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Amounts payable to tenants Broker-Dealer, Payable to Customer Schedule of Other Intangible Assets Subject to Amortization Intangible Asset, Finite-Lived [Table Text Block] 2026 PSUs 2026 PSUs [Member] 2026 PSUs Cash paid for amounts included in the measurement of lease liabilities: Cash Flow, Lessee [Abstract] Cash Flow, Lessee [Abstract] Number of Options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Current margin over LIBOR or EURIBOR Debt Instrument, Basis Spread on Variable Rate Lessor, Lease, Description [Line Items] Lessor, Lease, Description [Line Items] City Area Code City Area Code 3.950% senior notes 3.950% Senior Notes, Due 2029 [Member] Three Point Nine Five Zero Senior Notes Due 2029 [Member] Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Geographic Concentration Risk Geographic Concentration Risk [Member] Document Information [Table] Document Information [Table] All Individuals All Individuals [Member] Accrued pass-through costs Accrued Pass-Through Costs Accrued Pass-Through Costs SUBSEQUENT EVENTS Subsequent Events [Text Block] Spain Subsidiaries Operating In Spain [Member] Subsidiaries Operating In Spain Name Forgone Recovery, Individual Name Expected weighted average recognition period Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Statement [Line Items] Statement [Line Items] TOTAL Total assets Assets Entity [Domain] Entity [Domain] 5.550% senior notes 5.550% Senior Notes Due 2033 [Member] 5.550% Senior Notes Due 2033 Purchases of property and equipment under finance leases and perpetual easements Lease Obligation Incurred Operating Segments Operating Segments [Member] Leased assets, number of communication sites (more than) Leased Assets, Number Of Sites Leased Assets, Number Of Sites Right-of-use asset and Operating lease liability, net Increase (Decrease) In Right-Of-Use Asset And Operating Lease Liability Increase (Decrease) In Right-Of-Use Asset And Operating Lease Liability Accounting Policies [Line Items] Accounting Policies [Line Items] Accounting Policies [Line Items] Interest expense Interest Expense, Nonoperating 4.400% senior notes 4.400% Senior Notes, Due 2026 [Member] Four point four zero percent senior notes [Member] Performance period Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Period Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Period STOCK-BASED COMPENSATION Share-Based Payment Arrangement [Text Block] Issuance of common stock - stock purchase plan Stock Issued During Period, Value, Employee Stock Purchase Plan PEO PEO [Member] Stock-based compensation expense Stock-based compensation expense Stock-based compensation expense Share-Based Payment Arrangement, Expense Preferred stock, conversion ratio Preferred Stock, Convertible, Conversion Ratio CDPQ Caisse de depot et placement du Quebec [Member] Caisse de depot et placement du Quebec Measurement Basis [Axis] Measurement Basis [Axis] Non-cash items: Non-Cash Items [Abstract] Non-Cash Items [Abstract] Services revenue Services Revenue [Member] Services Revenue [Member] OTHER NON-CURRENT LIABILITIES Other Liabilities, Noncurrent GOODWILL Goodwill, beginning balance Goodwill, ending balance Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount APAC Operations ATC Philippines and Kirtonkhola Tower Bangladesh Limited [Member] ATC Philippines and Kirtonkhola Tower Bangladesh Limited Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period 4.900% senior notes 4.900% Senior Notes, Due 2030 [Member] 4.900% Senior Notes, Due 2030 Other subsidiary debt Other Subsidiary Debt [Member] Other Subsidiary Debt [Member] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Impact of sale of Bangladesh partnership on noncontrolling interests Impact of sale of Bangladesh partnership on noncontrolling interests Noncontrolling Interest, Decrease from Deconsolidation Distributions in Excess of Earnings Retained Earnings [Member] OPERATING LEASE LIABILITY Lease liability Non-current lease liability Operating Lease, Liability, Noncurrent Revolving Credit Facility Revolving Credit Facility [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period 3.375% senior notes 3.375% Senior Notes, Due 2026 [Member] Three Point Three Seven Five Percent Senior Notes Due October 15, 2026 [Member] Schedule of Fair Value Level of Inputs Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, shares outstanding (in shares) Balance at beginning of period (in shares) Balance at end of period (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] 5.250% senior notes 5.250% Senior Notes Due 2028 [Member] 5.250% Senior Notes Due 2028 Diluted net income attributable to American Tower Corporation common stockholders (in dollars per share) Earnings Per Share, Diluted Entity Current Reporting Status Entity Current Reporting Status Cash used for financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation 5.500% senior notes 5.500% Senior Notes, Due 2028 [Member] 5.500% Senior Notes, Due 2028 Total Shareholder Return Amount Total Shareholder Return Amount 4.625% Senior Notes due 2031 4.625% senior notes 4.625% Senior Notes Due 2031 [Member] 4.625% Senior Notes Due 2031 Amortization of intangible assets Intangible Asset, Finite-Lived, Amortization Expense Line of 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Total  Property Property [Member] Property [Member] Treasury stock, shares (in shares) Balance at beginning of period (in shares) Balance at end of period (in shares) Treasury Stock, Common, Shares Stock Options and Time-Based Restricted Stock Units Stock Options And Time Based Restricted Stock Units [Member] Stock Options And Time Based Restricted Stock Units Equity Components [Axis] Equity Components [Axis] Product and Service [Domain] Product and Service [Domain] Class of Stock [Line Items] Class of Stock [Line Items] CASH PAID FOR INCOME TAXES (NET OF REFUNDS OF $11.4 AND $24.8, RESPECTIVELY) Income Tax Paid, after Refund Received Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Entity Interactive Data Current Entity Interactive Data Current Net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest DEFERRED TAX LIABILITY Deferred Income Tax Liabilities, Net Compensation Actually Paid vs. Other Measure 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[Line Items] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Net Investment Hedge Net Investment Hedging [Member] 4.000% Senior Notes due 2033 4.000% senior notes 4.000% Senior Notes due 2033 [Member] 4.000% Senior Notes due 2033 Unrecognized tax benefits, additions to existing tax positions Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Payment for early retirement of long-term obligations Payment for Debt Extinguishment or Debt Prepayment Cost INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES Income from continuing operations before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies 5.560% senior notes 5.560% Senior Notes, Due 2033 [Member] 5.560% Senior Notes, Due 2033 Gross Carrying Value Intangible Asset, Finite-Lived, before Accumulated Amortization Total operating revenues Total revenue Segment revenues Revenues Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] 2030 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] Equity, Attributable to Noncontrolling Interest [Roll Forward] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] 5.200% senior notes 5.200% Senior Notes Due 2029 [Member] 5.200% Senior Notes Due 2029 Vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Non-lease property revenue Non-Lease Property Revenue [Member] Non-Lease Property Revenue [Member] 0.450% Senior Notes due 2027 0.450% senior notes 0.450% Senior Notes, Due 2027 [Member] 0.450% Senior Notes, Due 2027 Counterparty Name [Axis] Counterparty Name [Axis] Expired (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period Goodwill [Roll Forward] Goodwill [Roll Forward] Intangible Asset, Finite-Lived, Class [Domain] Intangible Asset, Finite-Lived, Class [Domain] Debt Instrument, Redemption Option Two Debt Instrument, Redemption Option Two [Member] Debt Instrument, Redemption Option Two Percentage of ownership interest sold Disposal Group, Including Discontinued Operation, Ownership Percentage In Disposed Asset Disposal Group, Including Discontinued Operation, Ownership Percentage In Disposed Asset 1.450% senior notes 1.450% Senior Notes, Due 2026 [Member] 1.450% Senior Notes, Due 2026 2030 Lessor, Operating Lease, Payment to be Received, Year Four Schedule of Fair Value of Assets and Liabilities Measured on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount 1.875% senior notes 1.875% Senior Notes, Due 2030 [Member] 1.875% Senior Notes, Due 2030 Remainder of 2026 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Level 3 Fair Value, Inputs, Level 3 [Member] Other selling, general, administrative and development expense Other Selling, General and Administrative Expense Expected term (years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Unrecognized tax benefits, reduction due to the lapse of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations 2027 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One Treasury stock activity (in shares) Treasury stock repurchases (in shares) Treasury Stock, Shares, Acquired Operating lease, term of contract Lessee, Operating Lease, Term of Contract Noncontrolling owner ownership percentage (as a percent) Subsidiary, Ownership Percentage, Noncontrolling Owner PEO Name PEO Name Geographical [Axis] Geographical [Axis] Total Lessor, Operating Lease, Payment to be Received Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Allianz Allianz Capital Partners [Member] Allianz Capital Partners Legal Entity [Axis] Legal Entity [Axis] Treasury stock activity Treasury stock repurchased value Treasury Stock, Value, Acquired, Cost Method CASH AND CASH EQUIVALENTS, AND RESTRICTED CASH, BEGINNING OF PERIOD CASH AND CASH EQUIVALENTS, AND RESTRICTED CASH, END OF PERIOD Total cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Schedule of Finite-Lived Intangible Assets [Table] Intangible Asset, Finite-Lived [Table] Other accrued expenses Other Accrued Liabilities, Current Latin America Property, Latin America [Member] Property, Latin America Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Restricted cash Restricted cash Restricted Cash and Cash Equivalent, Current 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] Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Measurement Frequency [Domain] Measurement Frequency [Domain] Debt Instrument [Axis] Debt Instrument [Axis] Subsequent Event [Table] Subsequent Event [Table] Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense 5.300% senior notes 5.300% Senior Notes, Due 2031 [Member] 5.300% Senior Notes, Due 2031 2028 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two Common stock distributions declared Dividends, Cash Disposal Group Name [Axis] Disposal Group Name [Axis] LEASES Lessee, Operating Leases [Text Block] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Basic net income attributable to American Tower Corporation common stockholders (in dollars per share) Earnings Per Share, Basic Buyback Program 2017 Buyback [Member] 2017 Buyback [Member] Purchases of common stock Payments for Repurchase of Common Stock Unearned revenue Contract with Customer, Liability, Current Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Repayments of notes payable, credit facilities, senior notes, secured debt and finance leases Repayment of Long-Term Debt, Long-Term Lease Obligation, and Capital Security Segment operating expenses Cost of Revenue Award Type [Axis] Award Type [Axis] Remainder of 2026 Lessor, Operating Lease, Payment to be Received, Remainder of Fiscal Year 0.500% Senior Notes due 2028 0.500% senior notes 0.500% Senior Notes, Due 2028 [Member] 0.500% Senior Notes, Due 2028 Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Distributions in excess of earnings Retained Earnings (Accumulated Deficit) Product and Service [Axis] Product and Service [Axis] Investments in equity securities Equity Securities, FV-NI Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Unrecognized tax benefits, reduction due to foreign exchange rate fluctuations Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] 3.125% senior notes 3.125% Senior Notes, Due 2027 [Member] Three Point One Two Five Percent, Senior Notes [Member] Common Stock, $0.01 par value Common Stock Common Stock [Member] Annualized volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Fair Value Measurement [Domain] Fair Value Measurement [Domain] Operating lease cost Operating Lease, Cost Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Cover page. Cover [Abstract] Noncontrolling Interest [Abstract] Noncontrolling Interest [Abstract] Concentration risk percentage (less than for year ended December 31, 2025) Concentration Risk, Percentage Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] 4.050% senior notes 4.050% Senior Notes, Due 2032 [Member] 4.050% Senior Notes, Due 2032 Foreign lne of credit Foreign Line of Credit [Member] Effect of foreign currency translation Goodwill, Foreign Currency Translation, Gain (Loss) Equity Awards Adjustments Equity Awards Adjustments [Member] Product Benchmark Revenue from Contract with Customer, Product and Service Benchmark [Member] 0.875% Senior Notes due 2029 0.875% senior notes 0.875% Senior Notes, Due 2029 [Member] 0.875% Senior Notes, Due 2029 Hedging Relationship [Domain] Hedging Relationship [Domain] TOTAL Liabilities and Equity Loss on retirement due to prepayment consideration Gain (Loss) on Extinguishment of Debt, before Debt Issuance Cost Writeoff Interest income Interest Income, Other Stock Options Share-Based Payment Arrangement, Option [Member] Noncontrolling interests Equity, Attributable to Noncontrolling Interest Schedule of Future Minimum Rental Receipts Expected Under Operating Leases Lessor, Operating Lease, Payment to be Received, Maturity [Table Text Block] Segments [Axis] Segments [Axis] Decrease in liabilities Increase (Decrease) in Other Operating Liabilities Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Proceeds from issuance of senior notes, net Proceeds from issuance of senior notes Proceeds from Issuance of Senior Long-Term Debt Plan Name [Axis] Plan Name [Axis] Tabular List, Table Tabular List [Table Text Block] Additional paid-in capital Additional Paid in Capital Schedule of Stock-Based Compensation Expense Share-Based Payment Arrangement, Cost by Plan [Table Text Block] Other (expense) income (including foreign currency gains (losses) of $27.0, $18.0, $137.2 and $(811.7), respectively) Other Nonoperating Income (Expense) 2031 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Five 2029 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three Remainder of 2026 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year Other operating expense (income) Other Operating Income (Expense), Net Name Awards Close in Time to MNPI Disclosures, Individual Name EQUITY (shares in thousands): Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] 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] Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Amounts payable for acquisitions Acquisition Related Payables, Current Acquisition Related Payables, Current Increase (decrease) in accounts payable and accrued expenses for purchases of property and equipment and construction activities Capital Expenditures Incurred but Not yet Paid, Increase (Decrease) Capital Expenditures Incurred but Not yet Paid, Increase (Decrease) Adjustment to Compensation: Adjustment to Compensation [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Class of Stock [Domain] Class of Stock [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Prepaid income tax Prepaid Taxes CASH PAID FOR INTEREST Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Schedule of Changes in Noncontrolling Interests Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table Text Block] Debt Instrument, Redemption Option One Debt Instrument, Redemption Option One [Member] Debt Instrument, Redemption Option One Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount LONG-TERM OBLIGATIONS Long-term obligations Long-Term Debt and Lease Obligation 2.100% senior notes 2.100% Senior Notes, Due 2030 [Member] 2.100% Senior Notes, Due 2030 Name Measure Name INCOME TAXES Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Other non-cash items reflected in statements of operations Other Noncash Income (Expense) Acquired network location intangibles Acquired Network Location [Member] Acquired network location [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Thereafter Lessee, Operating Lease, Liability, To Be Paid, After Year Four Lessee, Operating Lease, Liability, To Be Paid, After Year Four Additional Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Number of Reportable Segments Disclosed By Definition Flag Number Of Reportable Segments Disclosed By Definition Flag Number Of Reportable Segments Disclosed By Definition Flag Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Germany Subsidiaries Operating In Germany [Member] Germany Operations Data Centers Property, Data Centers [Member] Property, Data Centers Prepaid Expense and Other Assets, Current [Abstract] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Company Selected Measure Amount Company Selected Measure Amount Unrealized (losses) gains on equity securities Equity Securities, FV-NI, Unrealized Gain (Loss) Lease incentives Incentive to Lessee Executive Vice President and President, APAC Executive Vice President And President, APAC [Member] Executive Vice President And President, APAC Stock-based compensation related activity (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Schedule of Stock by Class [Table] Stock, Class of Stock [Table] Net income Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Unrecognized tax benefits that would impact the ETR Unrecognized Tax Benefits that Would Impact Effective Tax Rate CURRENT ASSETS: Assets, Current [Abstract] Weighted-average remaining lease term (years) Operating Lease, Weighted Average Remaining Lease Term Successive terms to renew lease Successive Terms To Renew Lease Number of successive terms to renew lease. Non-PEO NEO Non-PEO NEO [Member] Senior notes Senior Notes [Member] Entity Address, Address Line One Entity Address, Address Line One New operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Income tax provision Income Tax Expense (Benefit) 2.300% senior notes 2.300% Senior Notes, Due 2031 [Member] 2.300% Senior Notes, Due 2031 2026 Plan 2026 Plan [Member] 2026 Plan Net income Net income attributable to noncontrolling interests Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest Services Cost of Product and Service Sold Award Timing Method Award Timing Method [Text Block] Principles of Consolidation and Basis of Presentation Consolidation, Policy [Policy Text Block] NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS, AND RESTRICTED CASH Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forecast Forecast [Member] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Acquisition-Related Loans Acquisition-Related Loans [Member] Acquisition-Related Loans Number of data centers operated Number Of Data Centers Operated Number Of Data Centers Operated 5.650% senior notes 5.650% Senior Notes, Due 2033 [Member] 5.650% Senior Notes, Due 2033 2028 Lessor, Operating Lease, Payment to be Received, Year Two Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Bridge Loan Bridge Loan [Member] Balance Sheet Location [Axis] Location, Statement of Financial Position, Balance [Axis] Statement [Table] Statement [Table] Other Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member] Restatement Determination Date: Restatement Determination Date [Axis] 3.55% senior notes 3.55% Senior Notes, Due 2027 [Member] Three Point Five Five Percent Senior Notes [Member] Unrealized foreign currency gains (losses) for net investment hedge Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax Leased assets, number of communication sites purchased Leased Assets, Purchased, Number Of Sites Leased Assets, Purchased, Number Of Sites Foreign currency gains (losses) Unrealized Gain (Loss), Foreign Currency Transaction, before Tax 5.450% senior notes 5.450% Senior Notes Due 2034 [Member] 5.450% Senior Notes Due 2034 REVENUES: Revenues [Abstract] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]