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Total long-term debt average term Inventories and other assets Increase (Decrease) in Inventories and Other Operating Assets Common Stock, Value, Outstanding Common stock $0.01 par; authorized 1,800,000,000 shares; outstanding 217,963,300 shares - 2026 and 224,605,100 shares - 2025 Liabilities and Equity Total liabilities and stockholders' (deficit) equity Debt Instrument [Line Items] Debt Instrument [Line Items] Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Percentage of net income attributable to noncontrolling interests Other Other Noncash Income (Expense) Other Noncash Income (Expense), Total Investment carrying value Investments of insurance subsidiaries, noncurrent Investments of insurance subsidiaries Due after ten years, Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Other Comprehensive Income (Loss), before Tax Other comprehensive income (loss) before taxes Other comprehensive (loss) income before taxes Money market funds and other, Unrealized Losses Money Market Funds And Other Unrealized Losses Money market funds and other, unrealized losses. Net debt issuance costs Debt Issuance Costs, Net Debt Issuance Costs, Net, Total Debt issuance costs and discounts Senior Unsecured Credit Facility [Member] Senior unsecured credit facility. Senior Unsecured Credit Facility [Member] Schedule of Computations of Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Number of owned and operated hospitals. 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Effect of dilutive incremental shares Weighted Average Number of Shares Outstanding, Diluted, Adjustment Weighted Average Number Diluted Shares Outstanding Adjustment, Total Amendment Flag OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax Unrealized (losses) gains on available-for-sale securities Product and Service [Domain] Product and Service [Domain] Money market funds and other, Amortized Cost Money Market Funds And Other Amortized Cost Money market funds and other amortized cost. Earnings Per Share, Policy [Policy Text Block] Earnings Per Share Liabilities and Equity [Abstract] LIABILITIES AND STOCKHOLDERS' (DEFICIT) EQUITY Entity Address, Postal Zip Code Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Number of freestanding surgery centers Number Of Freestanding Surgery Centers Number of freestanding surgery centers. 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Net Income (Loss) Attributable to Noncontrolling Interest, Total Net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Performance obligations for inpatient/ outpatient services satisfied period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Explanation Document Type Document Type Income tax payments, net Income Taxes Paid, Net Income Taxes Paid, Net, Total Income taxes and other liabilities Income Taxes And Other Liabilities Income taxes and other liabilities. Entity Central Index Key Investments, Debt and Equity Securities [Abstract] Change in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Operating Activities [Axis] Operating Activities [Axis] Goodwill and other intangible assets Intangible Assets, Net (Including Goodwill) Intangible Assets, Net (Including Goodwill), Total Repurchase of common stock, shares Stock Repurchased and Retired During Period, Shares Repurchase of common stock, shares Common stock, par value Common Stock, Par or Stated Value Per Share Debt Securities, Available-for-Sale, Amortized Cost Amortized Cost Fair Value Debt securities Debt Securities, Available-for-sale Securities Fair Value Corporate and Other [Member] Corporate Segment and Other Operating Segment [Member] Other senior secured debt Secured Debt, Other Debt Disclosure [Abstract] Other, Ratio Other Revenues Ratio Other revenues ratio. Operating expenses Operating Expenses Excluding Depreciation And Amortization Interest Expense Losses (Gains) On Sales Of Facilities Losses On Retirement Of Debt Operating expenses excluding depreciation and amortization interest expense losses (gains) on sales of facilities losses on retirement of debt. Operating expenses Current Fiscal Year End Date Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Distributions to noncontrolling interests Payments to Noncontrolling Interests Document Quarterly Report Other operating expenses Other Cost and Expense, Operating Other Cost and Expense, Operating, Total Entity Address, State or Province Payments to Acquire Interest in Subsidiaries and Affiliates, Total Acquisition of hospitals and health care entities Payments to Acquire Interest in Subsidiaries and Affiliates Comprehensive income attributable to HCA Healthcare, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Unrealized Amounts, Gains Noncontrolling interests Equity, Attributable to Noncontrolling Interest Stockholders' Equity Attributable to Noncontrolling Interest, Total Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance Long-Term Debt, Fair Value Estimated fair value of debt Other Other Assets, Noncurrent Other Assets, Noncurrent, Total Unsecured Debt Unsecured Debt, Total Senior unsecured Senior unsecured debt Basis of Presentation and Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Other [Member] Product and Service, Other [Member] Accumulated Other Comprehensive Loss [Member] AOCI Attributable to Parent [Member] Money market funds and other Money market funds and other, Fair Value Money Market Funds And Other Fair Value Money market funds and other fair value. Effective income tax rate reconciliation excluding net income attributable to noncontrolling interests Effective Income Tax Rate Reconciliation Excluding Net Income Attributable to Noncontrolling Interests Effective income tax rate reconciliation excluding net income attributable to noncontrolling interests. Financial Instrument [Axis] Financial Instrument [Axis] Current assets: Assets, Current [Abstract] Income taxes (benefits) related to other comprehensive income items Other Comprehensive Income (Loss), Tax Other Comprehensive Income (Loss), Tax, Total Number of hospitals sold. Number Of Hospitals Sold Number of hospitals sold Segment Reporting [Abstract] Fair Value, Assets Measured on Recurring Basis [Table Text Block] Summary of Investments of Insurance Subsidiaries Measured at Fair Value on Recurring Basis Current liabilities: Liabilities, Current [Abstract] Repurchase of common stock Stock Repurchased and Retired During Period, Value Repurchase of common stock Balance, shares Shares, Outstanding Balance, shares Accounts receivable Accounts Receivable, after Allowance for Credit Loss, Current Accounts Receivable, after Allowance for Credit Loss, Current, Total Number of hospitals purchased Number Of Hospitals Acquired Number of hospitals acquired. Share-based benefit plans, shares Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture, Total Number of freestanding endoscopy centers Number Of Freestanding Endoscopy Centers Number of freestanding endoscopy centers Outpatient services. Outpatient Services [Member] Outpatient Services [Member] Short-term borrowings Short-Term Debt Short-Term Debt, Total Commercial paper outstanding Hospital Facility [Member] Hospital facility. Debt issuance costs Debt Issuance Costs, Noncurrent, Net Debt Issuance Costs, Noncurrent, Net, Total Other Debt [Member] Other debt. Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Capital Structure [Table] Capital Structure [Table] Capital Structure [Table] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Weighted average common shares outstanding Basic Weighted Average Number of Shares Outstanding, Basic Weighted Average Number of Shares Outstanding, Basic, Total Stockholders' Equity, Other Other Other Segments [Axis] Segments [Axis] Long-Term Debt Total long-term debt (average life of 11.7 years, rates averaging 5.1%) APIC, Share-Based Payment Arrangement, Increase for Cost Recognition APIC, Share-Based Payment Arrangement, Increase for Cost Recognition, Total Share-based benefit plans Equity, Attributable to Parent Stockholders' Equity Attributable to Parent, Beginning Balance Stockholders' Equity Attributable to Parent, Ending Balance Stockholders' deficit attributable to HCA Healthcare, Inc. Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Statement of Stockholders' Equity [Abstract] Investments in and advances to affiliates Equity Method Investments Available for sale securities average scheduled maturity Available For Sale Securities Average Scheduled Maturity Period Available-for-sale securities average scheduled maturity period. Debt, Long-Term and Short-Term, Combined Amount Total debt Money Market Funds and Other [Member] Money Market Funds And Other [Member] Money market funds and other. Assets and Liabilities Measured at Fair Value Fair Value Disclosures [Text Block] Investments of insurance subsidiaries Investments of insurance subsidiaries Investment Fiar Value Investment Owned, Fair Value Investment Owned, Fair Value, Ending Balance Investment Owned, Fair Value, Beginning Balance Long-Term Debt, Weighted Average Interest Rate, at Point in Time Total long-term debt average rate Equity Attributable to Noncontrolling Interests [Member] Noncontrolling Interest [Member] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Other Other Assets, Current Income (Loss) from Equity Method Investments Income (Loss) from Equity Method Investments, Total Equity in losses (earnings) of affiliates Equity in earnings of affiliates Money market funds and other, Unrealized Gains Money Market Funds And Other Unrealized Gains Money market funds and other, unrealized gains. Interest expense Interest Expense, Operating and Nonoperating Interest Expense, Total Corporate And Other Corporate and other. Corporate and Other Due after ten years, Fair Value Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Proceeds from (Repayments of) Lines of Credit Proceeds from (Repayments of) Lines of Credit, Total Net change in short-term borrowings and revolving credit facility Debt Securities [Member] Debt Securities [Member] Five Point Three Seven Five Percentage Senior Notes [Member] 5.375% Senior Notes. 5.375% Senior Notes Due 2026 [Member] Disposal Group Name [Domain] Disposal Group Name [Domain] Entity Address, City or Town Repurchase of common stock, shares Repurchase of common stock, shares Stock Repurchased During Period, Shares Number of geographically organized groups Number of Reportable Segments Security Exchange Name Long-Term Debt, Gross Carrying amounts of long-term debt Property and equipment, at cost Property, Plant and Equipment, Gross Property, Plant and Equipment, Gross, Total Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Ending Balance Common Stock Shares Issued Not Disclosed Common stock, shares issued not disclosed. Common stock, shares issued not disclosed Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Income before income taxes Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss Amortized Cost, Total Short Term Debt Average Terms Short term debt average terms. Short term debt average term Investment Owned, at Cost, Total Investment Owned, Cost Inventories Inventory, Net Inventory, Net, Total Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total Interest payments Interest Paid, Excluding Capitalized Interest, Operating Activity Range [Domain] Statistical Measurement [Domain] Total current assets Assets, Current Document Period End Date Title and Position [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Senior Unsecured Notes [Member] Senior Unsecured Notes [Member] Senior unsecured notes. Senior Unsecured Notes Payable Through 2095 [Member] Revenues From Third Party Payers [Line Items] Revenues From Third Party Payers [Line Items] Revenues From Third Party Payers [Line Items] Accrued salaries Accrued Salaries, Current Statement of Financial Position [Abstract] Payable year Debt Instrument Maturity Year Debt instrument maturity year. Managed Medicare [Member] Managed Medicare [Member] Managed Medicare. Medicaid [Member] Medicaid [Member] Medicaid. Short-Term Debt, Weighted Average Interest Rate, at Point in Time Weighted average rate Financial Instruments [Domain] Financial Instruments [Domain] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Diluted Shares used for diluted earnings per share Weighted Average Number of Shares Outstanding, Diluted Estimated cost of uncompensated care. Estimated Cost Of Uncompensated Care Estimated cost of total uncompensated care Entity File Number Unrealized losses on available-for-sale securities OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Unrealized losses on available-for-sale securities Centers for Medicare and Medicaid Services ("CMS") [Member] Centers for Medicare and Medicaid Services ("CMS") [Member] Cover [Abstract] Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total Segment and Geographic Information Segment Reporting Disclosure [Text Block] General and administrative expense General and Administrative Expense General and Administrative Expense, Total Schedule of Revenues from Third Party Payers, Uninsured and Other Payers Schedule Of Revenues From Third Party Payers And Uninsured [Table Text Block] Schedule of revenues from third party payers and uninsured. Short-Term Debt, Type [Domain] Losses on retirement of debt Gain (loss) on extinguishment of debt Gain (Loss) on Extinguishment of Debt Gain (Loss) on Extinguishment of Debt, Total Short-Term Debt, Type [Axis] Revenues from third party payers Revenues From Third Party Payers Revenues from third party payers. Proceeds from Issuance of Long-Term Debt Proceeds from Issuance of Long-term Debt, Total Issuance of long-term debt Investment carrying value Asset fair value Long-Term Investments Long-Term Investments, Total Common stock, shares outstanding Common Stock, Shares, Outstanding Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding, Ending Balance Depreciation and amortization Depreciation, Depletion and Amortization Depreciation, Depletion and Amortization, Total Document Transition Report Charity care amount Charity Care Charity care. Michael S Cuffe [Member] Michael S Cuffe [Member] Michael S. Cuffe Repurchase of common stock Payments for Repurchase of Common Stock Comprehensive income (loss) Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Statement of Cash Flows [Abstract] Operating Activities [Domain] Operating Activities [Domain] Available for sale securities expected maturity of debt securities Available For Sale Securities Expected Maturity Period Of Debt Securities Available for sale securities expected maturity of debt securities (in years). Share Repurchases Transactions and Other Comprehensive Loss Equity [Text Block] Earnings Per Share Earnings Per Share [Text Block] Unrecognized Tax Benefits that Would Impact Effective Tax Rate Unrecognized tax benefits that would impact effective tax rate Uncompensated care. Uncompensated Care Total uncompensated care Net income attributable to HCA Healthcare, Inc. Net income attributable to HCA Healthcare, Inc. Real Estate and Other Investments [Member] Real Estate And Other Investments [Member] Real Estate And Other Investments [Member] Defined benefit plans, beginning balances Defined benefit plans, ending balances Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax, Total Revenues from third party payers, Ratio Revenues From Third Party Payers Ratio Revenues from third party payers ratio. Proceeds from (Payment for) Other Financing Activity Other Proceeds from sale of business Sales of hospitals and health care entities Proceeds from Divestiture of Businesses ASSETS Assets [Abstract] Managed Medicaid [Member] Managed Medicaid [Member] Managed Medicaid. Amortization of debt issuance costs and discounts Amortization of Debt Issuance Costs and Discounts, Total Amortization of Debt Issuance Costs and Discounts Document Fiscal Year Focus Components of Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Professional liability risks Professional Liability Risks Professional liability risks. Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Accounts payable Accounts Payable, Current Accounts Payable, Current, Total Investments of Insurance Subsidiaries Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Fair Value Measurement, Policy [Policy Text Block] Fair Value Measurements and Disclosures Senior Secured Notes Due 2036 [Member] Senior Notes Due Two Thousand Thirty Six [Member] Senior notes due two thousand thirty six. Fair Value Disclosures [Abstract] Commitments and Contingencies Disclosure [Abstract] Healthcare entity. Healthcare Entity [Member] Healthcare Entity [Member] Debt Instrument [Axis] Debt Instrument [Axis] Derivatives, Policy [Policy Text Block] Derivative Financial Instruments Revenues Revenues, Total Revenues from third party payers Revenues Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Title of 12(b) Security Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Other Comprehensive Loss Foreign Currency Translation Adjustment Tax Benefit Other comprehensive loss foreign currency translation adjustment tax benefit. Foreign currency translation adjustments, net of income tax benefits Due after one year through five years, Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Income Taxes Income Tax Disclosure [Text Block] Capital Structure [Line Items] Capital Structure [Line Items] Capital Structure [Line Items] Due after one year through five years, Fair Value Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Increase (decrease) in cash from operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Decrease in cash from operating assets and liabilities: Income Tax Disclosure [Abstract] Capital in Excess of Par Value [Member] Additional Paid-in Capital [Member] Share repurchase program authorized amount Share Repurchase Program, Authorized, Amount Senior Notes [Member] Senior Notes [Member] Five Point Two Five Zero Senior Notes Due Two Thousand Twenty Six [Member] Five point two five zero senior notes due two thousand twenty six. 5.250% Senior Notes Due 2026 [Member] Trading Symbol Due in one year or less, Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Pretax gain (loss) before tax Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax, Total Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Asset Class [Axis] Asset Class [Axis] Other Senior Secured Debt [Member] Other Senior Secured Debt [Member] Other senior secured debt. Business Acquisition [Axis] Business Combination [Axis] Due after five years through ten years, Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Managed Care and Insurers [Member] Managed Care And Other Insurers [Member] Managed care and other insurers. Statement of Comprehensive Income [Abstract] Maximum [Member] Maximum [Member] Range [Axis] Statistical Measurement [Axis] Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Summary of significant accounting policies. Investment Losses Investment Losses Investment losses. Investment Losses Balances Balance Equity, Including Portion Attributable to Noncontrolling Interest Total stockholders' (deficit) equity Revenues ratio from third party payers Revenue Ratio Revenue ratio. Comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest, Total Total expenses including equity in earnings of affiliates Costs and Expenses Acquisitions and Dispositions Mergers, Acquisitions and Dispositions Disclosures [Text Block] Schedule of Debt Schedule of Debt [Table Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Business Combination [Table] Entity Registrant Name Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Unrecognized tax benefits, income tax penalties and interest accrued Debt Disclosure [Text Block] Debt Revenues From Third Party Payers [Table] Revenues From Third Party Payers [Table] Revenues from third party payers [Table] Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Unrealized Amounts, Losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax, Total Provision for income taxes Income Tax Expense (Benefit) Income Tax Expense (Benefit), Total Supplies Supplies Expense Inpatient services. Inpatient Services [Member] Inpatient Services [Member] Entity Common Stock, Shares Outstanding States and Municipalities [Member] US States and Political Subdivisions Debt Securities [Member] Regulatory Assets [Abstract] Regulatory assets. Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Accumulated other comprehensive loss, net of tax, beginning balances Accumulated other comprehensive loss, net of tax, ending balances Consolidation Items [Axis] Purchase of property and equipment Payments to Acquire Property, Plant, and Equipment Payments to Acquire Property, Plant, and Equipment, Total Other Payment for (Proceeds from) Other Investing Activity Total assets Assets Change in investments Payments for (Proceeds from) Investments Payments for (Proceeds from) Investments, Total Income Statement [Abstract] Business Combination [Abstract] Diluted earnings Earnings Per Share, Diluted Earnings Per Share, Diluted, Total Diluted earnings Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Geographic Distributions of Revenues, Equity in Earnings or Losses of Affiliates, Adjusted Segment EBITDA, Depreciation and Amortization Operating Segments [Member] Title and Position [Domain] Fair Value, Total Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value City Area Code Other Comprehensive Income (Loss), Net of Tax Other comprehensive income (loss) Other comprehensive (loss) income Debt instrument, principal amount Debt Instrument, Face Amount Business Combination [Line Items] Business Acquisition [Line Items] National Group [Member] National Group [Member] National group. Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] American Group [Member] American Group [Member] American group. Disposal Group Name [Axis] Disposal Group Name [Axis] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Gross unrecognized tax benefits, excluding accrued interest and penalties Gross Unrecognized Tax Benefits Excluding Accrued Interest and Penalties Gross Unrecognized Tax Benefits Excluding Accrued Interest and Penalties. Property and equipment, net Property, Plant and Equipment, Net Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Ending Balance Less amounts due within one year Debt, Current Debt, Current, Total Short-term borrowings and long-term debt due within one year Retained Earnings [Member] Retained Deficit [Member] Share-based compensation Share-Based Payment Arrangement, Noncash Expense Share-based Payment Arrangement, Noncash Expense, Total Foreign currency translation adjustments, income tax benefits Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Eliminations and Reconciling Items [Member] Eliminations and reconciling items. Right-of-use operating lease obligations Operating Lease, Liability, Noncurrent Fair Value, Inputs, Level 1 [Member] Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Due after five years through ten years, Fair Value Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Less amounts classified as current assets Amounts classified as current assets Investments, Fair Value Disclosure Investments, Fair Value Disclosure, Total AOCI, Debt Securities, Available-for-Sale, Adjustment, after Tax AOCI, Debt Securities, Available-for-sale, Adjustment, after Tax, Total Unrealized losses on available-for-sale securities, beginning balances Unrealized losses on available-for-sale securities, ending balances Debt Securities, Available-for-Sale [Table] Entity Interactive Data Current Foreign currency translation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax, Total Foreign currency translation Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Cash dividends declared, per share Common Stock, Dividends, Per Share, Declared Number of facilities locations Number Of Facilities Locations Number of facilities locations. Share-Based Payment Arrangement, Expense, Tax Benefit Provision for tax benefits related to settlement of employee awards Entity Tax Identification Number Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Stockholders' (deficit) equity: Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Adjusted segment EBITDA Adjusted Income Loss From Continuing Operations Before Income Taxes Depreciation And Amortization Income before depreciation and amortization, interest expense, losses (gains) on sales of facilities, losses on retirement of debt, legal claim costs, income taxes and net income attributable to non controlling interests. Adjusted segment EBITDA Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Local Phone Number Board of Directors Chairman [Member] Shares used in earnings per share calculations (in millions): Weighted Average Number of Shares Outstanding, Diluted [Abstract] Percentage of income of federal poverty level eligible for charity care Patients Treated At Hospitals For Nonelective Care Income Less Than Or Equal To Specified Percentage Of Federal Poverty Level Eligible For Charity Care Patients treated at hospitals for nonelective care income less than or equal to specified percentage of the federal poverty level eligible for charity care. Accounting Policies [Abstract] Senior Notes Due Two Thousand Thirty One [Member] Senior notes due two thousand thirty one. Senior Secured Notes Due 2031 [Member] Atlantic Group [Member] Atlantic Group [Member] Atlantic group. Commercial Paper [Member] Salaries and benefits Labor and Related Expense Entity Emerging Growth Company