Less: accumulated amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Reporting Unit, Mobile Service
Reporting Unit, Mobile Service [Member]
Reporting Unit, Mobile Service
Restricted cash included in Other Current Assets
Restricted Cash, Current
Award Timing Predetermined
Award Timing Predetermined [Flag]
Finance and insurance, net
Finance and Insurance, Net [Member]
Finance and insurance, net [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Collections on auto loans receivable acquired through third-party dealers
Proceeds from Collection of Finance Receivables
Indefinite-lived Intangible Assets [Axis]
Indefinite-Lived Intangible Assets [Axis]
Other intangible assets, gross
Intangible Assets, Gross (Excluding Goodwill)
Entity File Number
Entity File Number
Additional Paid-In Capital
Additional Paid-in Capital [Member]
Valuation Approach and Technique [Domain]
Valuation Approach and Technique [Domain]
Performance obligations satisfied in previous periods
Contract with Customer, Performance Obligation Satisfied in Previous Period
Parts Distribution Centers
Parts Distribution Center [Member]
Parts Distribution Center [Member]
Tabular List, Table
Tabular List [Table Text Block]
BASIC EARNINGS PER SHARE:
Earnings Per Share, Basic [Abstract]
Auto loans receivable, Originated in year before current year
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year
Recent Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Franchise rights
Indefinite-Lived Intangible Assets (Excluding Goodwill), Fair Value Disclosure
Components Of Vehicle Floorplan Payable
Schedule of Vehicle Floorplan Payables [Table Text Block]
Tabular disclosure of the components of vehicle floorplan payable.
Current-period gross write-offs
Write-offs
Financing Receivable, Allowance for Credit Loss, Writeoff
Number of brands
Number of Brands
The number of new vehicle brands sold by the company's stores.
Operating Activities [Axis]
Operating Activities [Axis]
Platinum
Credit Program Tier Platinum [Member]
Credit Program Tier Platinum
Vehicle maintenance program, contract term
Revenue Vehicle Maintenance Product Contract Term
Term of contracts sold under the vehicle maintenance programs under which a customer purchases a specific number of maintenance services to be redeemed at one of our stores.
Cash received from business divestitures, net of cash relinquished
Proceeds from Divestiture of Businesses, Net of Cash Divested
Accounts payable
Increase (Decrease) in Accounts Payable
Floorplan interest expense
Floorplan interest expense
Floorplan interest expense
Interest expense incurred on vehicle floorplan payable trade and non-trade outstanding during the period.
Pledged Status [Axis]
Pledged Status [Axis]
Term securitization debt
Term securitization debt [Member]
Term securitization debt
Secured Overnight Financing Rate (SOFR)
Secured Overnight Financing Rate (SOFR) [Member]
Contract Asset (Current)
Contract with Customer, Asset, after Allowance for Credit Loss, Current
Summary Of Carrying Values And Fair Values Of Fixed Rate Debt
Fair Value, by Balance Sheet Grouping [Table Text Block]
Guarantor obligations, maximum exposure
Guarantor Obligations, Maximum Exposure, Undiscounted
Trading Arrangements, by Individual
Trading Arrangements, by Individual [Table]
Measurement Basis [Axis]
Measurement Basis [Axis]
Earnings per share, basic (in dollars per share)
Basic EPS (in dollars per share)
Earnings Per Share, Basic
Adjustment to Compensation:
Adjustment to Compensation [Axis]
Schedule of Warehouse Facilities
Schedule of Line of Credit Facilities [Table Text Block]
Named Executive Officers, Footnote
Named Executive Officers, Footnote [Text Block]
Commercial Paper
Commercial Paper [Member]
Excise tax accrual on share repurchases
Share Repurchases Excise Tax
Excise taxes imposed on share repurchases under the Inflation Reduction Act.
Revenue Recognition
Revenue from Contract with Customer [Text Block]
Schedule of Stock by Class [Table]
Stock, Class of Stock [Table]
Measurement Input, Discount Rate
Measurement Input, Discount Rate [Member]
Auto Loans Receivable
Financing Receivable, before Allowance for Credit Loss [Abstract]
Reportable Segment Information
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Continuing Operations
Continuing Operations [Member]
Revenue expected to be recognized on VCP contracts sold as of period end
Revenue, Remaining Performance Obligation, Amount
Measurement Input Type [Domain]
Measurement Input Type [Domain]
Contracts-in-transit and vehicle receivables
Contracts-in-Transit and Vehicle Receivables
The amount due to the company from outside sources, within one year of the balance sheet date, for retail new and used vehicle sales including amounts due from customers and amounts due from financing companies for the financed portion of the vehicle sales price.
Warehouse facilities
Warehouse Facilities [Member]
Warehouse Facilities
Adjustment to Compensation, Amount
Adjustment to Compensation Amount
Less: unamortized debt discounts and debt issuance costs
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net
Nonfinancial Assets Measured and Recorded At Fair Value On A Nonrecurring Basis
Fair Value Measurements, Nonrecurring [Table Text Block]
Other assets
Increase (Decrease) in Other Operating Assets
Cumulative Effect, Period of Adoption [Domain]
Cumulative Effect, Period of Adoption [Domain]
Basis of Presentation
Consolidation, Policy [Policy Text Block]
Stock-based compensation expense
Share-Based Payment Arrangement, Noncash Expense
Financing Receivable, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Financing Receivable Write Offs [Abstract]
Auto Loans Receivable, Current Period Write-offs
Parts and service
Parts and Service [Member]
Parts and service [Member]
Employee Stock Option
Share-Based Payment Arrangement, Option [Member]
Gain/(Loss) on assets held for sale
Disposal Group, Not Discontinued Operation, Loss (Gain) on Write-down
Award Timing MNPI Disclosure
Award Timing MNPI Disclosure [Text Block]
Auto loans receivable, net
Financing Receivable, after Allowance for Credit Loss
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity, Primary Beneficiary [Member]
Employee Equity and Incentive Plan 2026 [Member]
Employee Equity and Incentive Plan 2026 [Member]
Employee Equity and Incentive Plan 2026
Total Shareholders’ Equity
BALANCE at period start
BALANCE at period end
Equity, Attributable to Parent
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Insider Trading Policies and Procedures [Line Items]
Common stock authorized (in shares)
Common Stock, Shares Authorized
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Abstract]
Franchise rights - indefinite-lived
Indefinite-Lived Franchise Rights
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Total Liabilities and Shareholders’ Equity
Liabilities and Equity
Vehicle floorplan payable
Vehicle floorplan facilities, amount outstanding
Vehicle Floorplan Payable
Amounts borrowed to finance the purchase of specific new vehicle inventories with the corresponding manufacturers' captive finance subsidiaries ("trade lenders") and specific new and, to a lesser extent, used vehicle inventories with non-trade lenders (lenders that are not captive finance subsidiaries of the manufacturer).
Owned and operated new vehicle franchises
Owned And Operated New Vehicle Franchises
Represents the number of owned and operated new vehicle franchises.
LIABILITIES AND SHAREHOLDERS’ EQUITY
Liabilities and Equity [Abstract]
Revolving Credit Facility Due 2028
Revolving Credit Facility Due 2028 [Member]
Revolving Credit Facility Due 2028
Cover [Abstract]
Auto loans receivable, net
Increase (Decrease) in Finance Receivables
Portion at Fair Value Measurement
Portion at Fair Value Measurement [Member]
Maximum
Maximum [Member]
Shares issued (in shares)
Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture
Measurement Input, Long-term Pretax Loss Margin [Member]
Measurement Input, Long-term Pretax Loss Margin [Member]
Measurement Input, Long-term Pretax Loss Margin [Member]
Non-PEO NEO Average Total Compensation Amount
Non-PEO NEO Average Total Compensation Amount
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Business And Credit Concentrations
Concentration Risk Disclosure [Text Block]
Treasury Stock
Treasury Stock, Common [Member]
Adjustment to Non-PEO NEO Compensation Footnote
Adjustment to Non-PEO NEO Compensation Footnote [Text Block]
Pay vs Performance Disclosure [Line Items]
Financing Receivable, Credit Quality Indicator [Table]
Financing Receivable, Credit Quality Indicator [Table]
Number of warehouse facility agreements
Number of Warehouse Facility Agreements
Number of warehouse facility agreements with certain banking institutions through wholly-owned, bankruptcy remote, special purpose entities, primarily to finance the purchase and origination of auto loans receivable.
3.8% Senior Notes
Senior Notes at Three Point Eight Percent Due 2027 [Member]
Senior Notes at Three Point Eight Percent Due 2027 [Member]
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Current-period gross write-offs, 2023 origination
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff
Non-Rule 10b5-1 Arrangement Terminated
Non-Rule 10b5-1 Arrangement Terminated [Flag]
Entity Shell Company
Entity Shell Company
OTHER LIABILITIES
Other Liabilities, Noncurrent
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-Term Debt Instruments [Table]
Recourse Status [Domain]
Recourse Status [Domain]
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Goodwill impairment
Gain/(Loss) on goodwill
Goodwill, Impairment Loss
Operating Segments
Operating Segments [Member]
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Current portion of non-recourse debt
Less: current maturities
Long-Term Debt, Current Maturities
Company Selected Measure Amount
Company Selected Measure Amount
Award Timing MNPI Considered
Award Timing MNPI Considered [Flag]
Interest expense
Interest expense
Interest Expense, Operating
Measurement Input Type [Axis]
Measurement Input Type [Axis]
Disposal Group Name [Domain]
Disposal Group Name [Domain]
Name
Measure Name
Greater than 90 Days
Greater Than Ninety Days Past Due [Member]
Greater Than Ninety Days Past Due
Class of Stock [Line Items]
Class of Stock [Line Items]
DEFERRED INCOME TAXES
Deferred Income Tax Liabilities, Net
Document Fiscal Period Focus
Document Fiscal Period Focus
Rhodium
Credit Program Tier Rhodium [Member]
Credit Program Tier Rhodium
Award Timing Method
Award Timing Method [Text Block]
Award Type [Axis]
Award Type [Axis]
Contract Liability (Long-Term)
Contract with Customer, Liability, Noncurrent
Non-recourse debt
Long-Term Debt
Total Assets
Segment assets
Assets
Used vehicle floorplan facilities, unused borrowing capacity
Used Vehicle Floorplan Facility Unused Borrowing Capacity
Amount of borrowing capacity currently available under used vehicle floorplan facilities (maximum borrowing capacity less the amount of borrowings outstanding).
Trading Symbol
Trading Symbol
Financing Receivable, Credit Quality Indicator [Line Items]
Financing Receivable, Credit Quality Indicator [Line Items]
Goodwill And Intangible Assets, Net
Schedule of Intangible Assets and Goodwill [Table Text Block]
Domestic Stores Acquired
Domestic Stores Acquired [Member]
Domestic Stores Acquired
3.85% Senior Notes
Senior Notes at Three Point Eight Five Percent Due 2032 [Member]
Senior Notes at Three Point Eight Five Percent Due 2032
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Entity Address, City or Town
Entity Address, City or Town
Short-term Debt, Type [Domain]
Short-Term Debt, Type [Domain]
CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES:
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Other loss (income)
Segment Reporting, Other Segment Item, Amount
Waymo LLC [Member]
Waymo LLC [Member]
Waymo LLC
Class of Financing Receivable [Axis]
Class of Financing Receivable [Axis]
Non-PEO NEO Average Compensation Actually Paid Amount
Non-PEO NEO Average Compensation Actually Paid Amount
Restricted Stock Units (RSUs)
Restricted Stock Units (RSUs) [Member]
AutoNation Finance Income [Line Items]
AutoNation Finance Income [Line Items]
AutoNation Finance Income
Allowance for Credit Losses
Credit Loss, Financial Instrument [Policy Text Block]
Compensation Actually Paid vs. Other Measure
Compensation Actually Paid vs. Other Measure [Text Block]
Entity Emerging Growth Company
Entity Emerging Growth Company
Impairment of assets held and used
Gain/(Loss) on assets held and used
Impairment, Long-Lived Asset, Held-for-Use
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
(Increase) decrease, net of effects from business acquisitions and divestitures:
Increase (Decrease) in Operating Assets [Abstract]
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]
Unfunded Loan Commitment
Unfunded Loan Commitment [Member]
Cumulative Effect, Period of Adoption, Adjustment
Cumulative Effect, Period of Adoption, Adjustment [Member]
Insider Trading Policies and Procedures Not Adopted
Insider Trading Policies and Procedures Not Adopted [Text Block]
Schedule of Non-recourse Debt Term Securitizations
Schedule of Non-recourse Term Securitization [Table Text Block]
Schedule of non-recourse notes payable related to asset-backed term securitizations.
Receivables, gross
Receivables, Before Allowance For Credit Loss, Current
Amount due to the entity within one year of the balance sheet date from outside sources, including trade accounts receivables, before allowance for credit loss.
COMMON SHARES OUTSTANDING, net of treasury stock, at period end (in shares)
Common Stock, Shares, Outstanding
Domestic Stores Divested
Domestic Stores Divested [Member]
Domestic Stores Divested
Asset Pledged as Collateral
Asset Pledged as Collateral [Member]
Plan Name [Axis]
Plan Name [Axis]
PEO
PEO [Member]
Service loaner and rental vehicle inventory
Other Inventory, Noncurrent
Disaggregation of Revenue
Disaggregation of Revenue [Table Text Block]
Class of Financing Receivable [Domain]
Class of Financing Receivable [Domain]
Proceeds from 5.89% Senior Notes due 2035
Proceeds from Issuance of Senior Long-Term Debt
Floorplan Payable Trade Non Trade [Domain]
Floorplan Payable Trade Non Trade [Domain]
Floorplan payable trade non trade [Domain]
Corporate and other
Corporate Segment and Other Operating Segment [Member]
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]
Used vehicle floorplan facilities, remaining borrowing capacity
Used Vehicle Floorplan Facility Remaining Borrowing Capacity
Amount of borrowing capacity under used vehicle floorplan facilities considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of eligible used vehicle inventory that could have been pledged as collateral) and any amounts currently outstanding under the facility.
Schedule of Product Information [Table]
Nature of Operation, Product Information, Concentration of Risk [Table]
Current-period gross write-offs, 2026 origination
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff
AN Reportable Segment, Premium Luxury
AN Reportable Segment, Premium Luxury [Member]
Reporting Segment, Premium Luxury [Member]
Retained Earnings
Retained Earnings [Member]
Pledged Status [Domain]
Pledged Status [Domain]
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Restatement Determination Date
Restatement Determination Date
AutoNation Finance Income
AutoNation Finance Income (Loss) [Table Text Block]
Tabular disclosure of the components of AutoNation Finance income (loss).
Share-Based Payment Arrangement [Abstract]
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH at beginning of period
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH at end of period
Total cash, cash equivalents, and restricted cash
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Income Statement [Abstract]
Income Statement [Abstract]
Income tax provision
Income Tax Expense (Benefit)
Measurement Input, Contributory Asset Charges [Member]
Measurement Input, Contributory Asset Charges [Member]
Measurement Input, Contributory Asset Charges [Member]
Floorplan Payable [Axis]
Floorplan Payable [Axis]
Floorplan Payable [Axis]
Basis spread on variable interest rates (percent)
Debt Instrument, Basis Spread on Variable Rate
Fair Value, Nonrecurring
Fair Value, Nonrecurring [Member]
Preferred stock issued (in shares)
Preferred Stock, Shares Issued
OTHER INTANGIBLE ASSETS, NET
Other intangible assets, net
Intangible Assets, Net (Excluding Goodwill)
Pension Adjustments Service Cost
Pension Adjustments Service Cost [Member]
Product and Service [Domain]
Product and Service [Domain]
Fair Value Hierarchy [Axis]
Fair Value Hierarchy and NAV [Axis]
Compensation
Compensation Expense
Amount of expense for salary, wage, incentive and equity-based compensation, and other employee benefit. In addition, includes sales commissions incurred in the period by commissioned employees.
Restatement does not require Recovery
Restatement Does Not Require Recovery [Text Block]
Business Combination [Table]
Business Combination [Table]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Shares Issued And Shares Surrendered To Satisfy Tax Withholdings In Connection With Restricted Stock Units
Schedule of Restricted Stock Units [Table Text Block]
Tabular disclosure of shares issued in connection with the settlement of restricted stock units, as well as shares surrendered to satisfy tax withholding obligations in connection with the settlement of restricted stock units.
Notes Payable, Other Payables
Notes Payable, Other Payables [Member]
Compensation Actually Paid vs. Company Selected Measure
Compensation Actually Paid vs. Company Selected Measure [Text Block]
Proceeds from the exercise of stock options
Proceeds from Stock Options Exercised
City Area Code
City Area Code
Financing Receivable, Allowance for Credit Loss
Financing Receivable, Allowance for Credit Loss [Table Text Block]
Cash paid for business acquisitions, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Award Timing, How MNPI Considered
Award Timing, How MNPI Considered [Text Block]
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]
Net proceeds from vehicle floorplan payable - non-trade
Increase Decrease In Vehicle Floor Plan Payable Non Trade Net
The net change during the reporting period in vehicle floorplan payable-non-trade due by the reporting entity.
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Receivables from Contracts with Customers, Contract Assets, and Contract Liabilities
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES:
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
Pay vs Performance Disclosure
Pay vs Performance Disclosure [Table]
Net cash used in operating activities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Accrued interest and fees
Interest Receivable
Franchise Rights
Franchise Rights [Member]
Maturity period of debt
Debt Instrument, Term
AN Reportable Segment, Domestic
AN Reportable Segment, Domestic [Member]
Reportable Segment, Domestic [Member]
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Franchised dealerships - segment income
Segment Income (Loss)
Represents operating income less floorplan interest expense for each of the reportable segments.
Subsequent Event
Subsequent Event [Member]
Equity investments with readily determinable fair values
Equity Securities, FV-NI
Recoveries
Financing Receivable, Allowance for Credit Loss, Recovery
Total interest margin
Interest Income (Expense), Operating
GOODWILL
Goodwill
Goodwill
Equity Valuation Assumption Difference, Footnote
Equity Valuation Assumption Difference, Footnote [Text Block]
Warehouse facility, October 2026 expiration
Warehouse Facility Two [Member]
Warehouse Facility Two
PEO Total Compensation Amount
PEO Total Compensation Amount
Long-term Debt, Type [Axis]
Long-Term Debt, Type [Axis]
(Gain) loss on equity investments
Gain (Loss) on Investments
Manufacturer receivables
Manufacturer Receivables
The amount due to the company from manufacturers or distributors, within one year of the balance sheet date, including (1) rebates and assistance for holdbacks, floorplan interest and advertising expenses; (2) incentives based on achieving certain objectives; and (3) amounts due for warranty and service work performed for customers.
Non-cash impairment charges
Tangible Asset Impairment Charges
Statement, Equity Components [Axis]
Equity Components [Axis]
Trade receivables
Trade Receivables
The amount due to the company from outside sources, within one year of the balance sheet date, for parts and automotive repair and maintenance services that have been delivered or sold, excluding amounts due from manufacturers. Also includes amounts due from finance organizations, within one year of the balance sheet date, for commissions on the sale of financing products.
Dealerships
Dealerships [Member]
Dealerships [Member]
Non-Rule 10b5-1 Arrangement Adopted
Non-Rule 10b5-1 Arrangement Adopted [Flag]
Number of reportable segments
Number of Reportable Segments
Interim Financial Statements
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]
Maturity Date
Debt Instrument, Maturity Date
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information [Abstract]
Acquisitions and Divestitures
BusinessCombinationAndDisposalGroupsDisclosureTextBlock [Text Block]
The entire disclosure for a business combination or series of individually immaterial business combinations, as well as disclosures related to disposal groups classified as held-for-sale.
Other Performance Measure, Amount
Other Performance Measure, Amount
Inventory [Line Items]
Inventory [Line Items]
Payment of debt issuance costs
Payments of Debt Issuance Costs
Entity Address, State or Province
Entity Address, State or Province
Financial Asset, Aging [Domain]
Financial Asset, Aging [Domain]
Palladium
Credit Program Tier Palladium [Member]
Credit Program Tier Palladium
Bronze
Credit Program Tier Bronze [Member]
Credit Program Tier Bronze
Total Current Liabilities
Liabilities, Current
Unused capacity
Line Of Credit, Unused Borrowing Capacity
Amount of unused borrowing capacity under the credit facility (maximum borrowing capacity less the amount of borrowings outstanding).
Inventory And Vehicle Floorplan Payable
Inventory And Vehicle Floorplan Payable [Text Block]
Includes disclosure of the major classes of inventory and components of vehicle floorplan payables, as well as aggregate capacity under all of our floorplan credit facilities and total amounts borrowed at period end.
Net gains (losses) recognized during the period on equity securities
Equity Securities, FV-NI, Gain (Loss)
Inventory [Axis]
Inventory [Axis]
5.89% Senior Notes Due 2035
5.89% Senior Notes
Senior Notes at Five Point Eight Nine Percent Due 2035 [Member]
Senior Notes at Five Point Eight Nine Percent Due 2035
Individual:
Individual [Axis]
Restricted cash of consolidated VIEs
Restricted Cash
Adjustments to right-of-use assets including right-of-use assets obtained in exchange for new finance lease liabilities
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Other current assets
Other Assets, Current
Additional paid-in capital
Additional Paid in Capital, Common Stock
Equity investment without readily determinable fair value, cumulative downward adjustment
Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Cumulative Amount
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
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]
Interest payments, net of amounts capitalized and including interest on vehicle inventory financing
Interest Paid, Excluding Capitalized Interest, Operating Activity
Document Fiscal Year Focus
Document Fiscal Year Focus
OPERATING LEASE ASSETS
Operating Lease, Right-of-Use Asset
Non-recourse
Nonrecourse [Member]
Forgone Recovery, Explanation of Impracticability
Forgone Recovery, Explanation of Impracticability [Text Block]
Used Vehicle Floorplan Facilities
Used Vehicle Floorplan Facilities [Member]
Used Vehicle Floorplan Facilities [Member]
Less: unearned discounts
Financing Receivable, Unamortized Purchase Premium (Discount)
Auto loans receivable, Originated three years before current year
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year
Entity Interactive Data Current
Entity Interactive Data Current
61-90 Days
Sixty One To Ninety Days Past Due [Member]
Sixty One To Ninety Days Past Due
Current-period gross write-offs, 2024 origination
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff
Receivables, Net
Accounts and Nontrade Receivable [Text Block]
Carrying value
Reported Value Measurement [Member]
Plan Name [Domain]
Plan Name [Domain]
Inventory And Vehicle Floorplan Payable [Abstract]
Inventory And Vehicle Floorplan Payable [Abstract]
Inventory And Vehicle Floorplan Payable [Abstract]
Equity [Abstract]
Equity investment without readily determinable fair value, cumulative upward adjustment
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount
Direct expenses
Noninterest Expense
Store overhead
Other Selling, General and Administrative Expense
Floorplan Payable [Line Items]
Floorplan Payable [Line Items]
Floorplan Payable [Line Items]
Warehouse Facility, December 2026 expiration
Warehouse Facility Three [Member]
Warehouse Facility Three
Segment Information
Segment Reporting Disclosure [Text Block]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Current maturities of long-term debt
Less: current maturities
Long-Term Debt and Lease Obligation, Current
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Auto loans receivable, Originated in current year
Financing Receivable, Year One, Originated, Current Fiscal Year
Adjustments to right-of-use assets including right-of-use assets obtained in exchange for new operating lease liabilities
Noncash adjustments right-of-use assets
Noncash adjustments to right-of-use assets, including right-of-use assets obtained in exchange for new operating lease liabilities.
Copper
Credit Program Tier Copper [Member]
Credit Program Tier Copper
Compensation Actually Paid vs. Total Shareholder Return
Compensation Actually Paid vs. Total Shareholder Return [Text Block]
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Weighted Average
Weighted Average [Member]
Deferred loan origination costs
Financing Receivable, Unamortized Loan Cost (Fee)
Selling, general, and administrative expenses
Total selling, general, and administrative expenses
Selling, General and Administrative Expense
Commercial paper
Commercial paper, amount outstanding
Commercial Paper
New vehicle
New Vehicle [Member]
New vehicle [Member]
Shares awarded under stock-based compensation plans, net of shares withheld for taxes
Shares Issued, Value, Share-Based Payment Arrangement, After Forfeiture, Including Adjustments To Retained Earnings
Value, after forfeiture, of shares issued under share-based payment arrangement including adjustments to retained earnings.
AN Reportable Segment, AN Finance
AN Reportable Segment, AutoNation Finance [Member]
AN Reportable Segment, AutoNation Finance
OTHER ASSETS
Other Assets, Noncurrent
AUTO LOANS RECEIVABLE, net of allowance for credit losses of $109.8 million and $95.4 million, respectively
Financing Receivable, after Allowance for Credit Loss, Noncurrent
Collision Centers
Collision Center [Member]
Collision Center [Member]
Entity Central Index Key
Entity Central Index Key
Vehicle floorplan payable - trade
Increase Decrease In Vehicle Floorplan Payable Trade Net
The net change during the reporting period in vehicle floorplan payable-trade due by the reporting entity.
PEO Name
PEO Name
TOTAL REVENUE
Revenues
Revenues from external customers
Revenues
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]
Financing Receivable Credit Quality Indicators
Financing Receivable Credit Quality Indicators [Table Text Block]
Outstanding Aggregate Erroneous Compensation Amount
Outstanding Aggregate Erroneous Compensation Amount
Arrangement Duration
Trading Arrangement Duration
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Goodwill
Goodwill, Fair Value Disclosure
Contract Liability (Current)
Contract with Customer, Liability, Current
Business Segments [Axis]
Segments [Axis]
Total surety bonds, letters of credit, and cash deposits
Surety Bonds Letters Of Credit And Cash Deposits Total
Amount of surety bonds, letters of credit, and cash deposits that are posted as financial guarantees of our performance.
Exercise Price
Award Exercise Price
Entity Filer Category
Entity Filer Category
Local Phone Number
Local Phone Number
Additional 402(v) Disclosure
Additional 402(v) Disclosure [Text Block]
Inventory, Current [Table]
Inventory, Current [Table]
Contract Asset (Long-Term)
Contract with Customer, Asset, after Allowance for Credit Loss, Noncurrent
Other
Payment for (Proceeds from) Other Investing Activity
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Stock-Based Compensation
Share-Based Payment Arrangement [Text Block]
Credit loss liability, current
Off-Balance-Sheet, Credit Loss, Liability
ASSETS
Assets [Abstract]
NON-RECOURSE DEBT, NET OF CURRENT PORTION
Non-recourse debt, net of current maturities
Long-Term Debt, Excluding Current Maturities
Underlying Security Market Price Change
Underlying Security Market Price Change, Percent
Debt Instrument [Axis]
Debt Instrument [Axis]
Financial Instruments and Fair Value Measurements
Fair Value Disclosures [Text Block]
Business Combination [Line Items]
Business Combination [Line Items]
Additional borrowing capacity under accordion feature of revolving credit facility
Line Of Credit Facility, Additional Borrowing Capacity
Maximum amount of increase in the revolving credit facility allowed under the accordion feature of the credit agreement, subject to credit availability and certain other conditions.
Other intangibles
Finite-Lived Intangible Assets, Gross
SHAREHOLDERS’ EQUITY:
Equity, Attributable to Parent [Abstract]
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
Repurchases of common stock, including excise tax
Aggregate purchase price
Treasury Stock, Value, Acquired, Cost Method
Less: allowances for expected credit losses
Accounts Receivable, Allowance for Credit Loss, Current
Percentage interest
Debt Instrument, Interest Rate, Stated Percentage
Percentage of total retail new vehicle unit sales from stores located in Florida, Texas and California
Percentage of Revenue Certain States
The percentage of total revenue generated by stores located in Florida, Texas, and California.
Shares surrendered to AutoNation to satisfy tax withholding obligations (in shares)
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation
NONCURRENT OPERATING LEASE LIABILITIES
Operating Lease, Liability, Noncurrent
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]
Commitments And Contingencies
Commitments Contingencies and Guarantees [Text Block]
Fair Value as of Grant Date
Award Grant Date Fair Value
Entity Registrant Name
Entity Registrant Name
Gold
Credit Program Tier Gold [Member]
Credit Program Tier Gold
Stock Price or TSR Estimation Method
Stock Price or TSR Estimation Method [Text Block]
Income taxes payable
Accrued Income Taxes
AUTONATION FINANCE INCOME
AutoNation Finance income
Finance income (loss)
Income (loss) generated by the entity's auto finance company.
Long-Term Debt
Schedule of Long-Term Debt Instruments [Table Text Block]
Franchise rights impairment, number of stores
Franchise Rights Impairment, Number of Stores
Number of stores with franchise rights carrying values that exceeded their fair values in the quantitative impairment tests.
Dilutive effect of unvested RSUs (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements
Granted, shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Investments in equity securities
Payments to Acquire Investments
Title and Position [Domain]
Title and Position [Domain]
AN Reportable Segment, Franchised Dealerships
AN Reportable Segment, Franchised Dealerships [Member]
AN Reportable Segment, Franchised Dealerships
Document Quarterly Report
Document Quarterly Report
Provision for credit losses
Provision for Loan, Lease, and Other Losses
Deferred income tax provision (benefit)
Deferred Income Taxes and Tax Credits
Fixed rate debt
Long-Term Debt, Fair Value
Fair Value Measurement Inputs and Valuation Techniques
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
Changed Peer Group, Footnote
Changed Peer Group, Footnote [Text Block]
Selling, general and administrative expenses:
Selling, General and Administrative Expense [Abstract]
Total Past Due
Financial Asset, Past Due [Member]
Equity investment without readily determinable fair value
Equity Securities without Readily Determinable Fair Value, Amount
Adjustment To PEO Compensation, Footnote
Adjustment To PEO Compensation, Footnote [Text Block]
Title
Trading Arrangement, Individual Title
Peer Group Total Shareholder Return Amount
Peer Group Total Shareholder Return Amount
4.45% Senior Notes
Senior Notes at Four Point Four Five Percent Due 2029 [Member]
Senior Notes at Four Point Four Five Percent Due 2029
Cumulative Effect, Period of Adoption [Axis]
Cumulative Effect, Period of Adoption [Axis]
Number of stores
Number of Stores
Restatement Determination Date:
Restatement Determination Date [Axis]
Non-PEO NEO
Non-PEO NEO [Member]
Letters of credit, amount outstanding
Letters of Credit Outstanding, Amount
Payments of other debt obligations
Repayments of Other Debt
Goodwill Reporting Units [Axis]
Reporting Unit [Axis]
Other interest expense
Interest Expense, Debt
Employee Equity and Incentive Plan 2017 [Member]
Employee Equity and Incentive Plan 2017 [Member]
2017 Employee Equity and Incentive Plan [Member]
Name
Trading Arrangement, Individual Name
Balance as of end of period
Financing Receivable, Allowance for Credit Loss
Award Type [Domain]
Award Type [Domain]
Current-period gross write-offs, Prior to 2022 origination
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff
Equity Awards Adjustments
Equity Awards Adjustments [Member]
Advertising
Advertising Expense
Other
Other Noncash Income (Expense)
Pension Benefits Adjustments, Footnote
Pension Benefits Adjustments, Footnote [Text Block]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Receivables
Increase (Decrease) in Accounts and Other Receivables
Compensation Amount
Outstanding Recovery Compensation Amount
Initial principal amount
Debt Instrument, Face Amount
Auto loans receivable, FICO Score
Financing Receivable Credit Quality FICO Score
FICO score for auto loans receivables.
Commercial paper, maximum aggregate amount outstanding permitted
Commercial Paper Maximum Aggregate Amount
The maximum aggregate amount of commercial paper notes that is permitted to be outstanding under the commercial paper program at any time.
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Recovery of Erroneously Awarded Compensation Disclosure [Line Items]
Fair value
Estimate of Fair Value Measurement [Member]
Amounts included in contract liability at the beginning of the period
Contract with Customer, Liability, Revenue Recognized
Stock Repurchase Program [Axis]
Share Repurchase Program [Axis]
Depreciation and amortization
Depreciation and Amortization Excluding Debt Financing Costs and Discounts
The aggregate expense recognized in the current period that reflects the allocation of the cost of tangible assets and intangible assets over the assets' useful lives. This concept does not include the amortization of debt financing costs and discounts.
Goodwill Reporting Units [Domain]
Reporting Unit [Domain]
MNPI Disclosure Timed for Compensation Value
MNPI Disclosure Timed for Compensation Value [Flag]
Name
Awards Close in Time to MNPI Disclosures, Individual Name
Restricted cash included in Other Assets
Restricted Cash, Noncurrent
Aggregate Erroneous Compensation Not Yet Determined
Aggregate Erroneous Compensation Not Yet Determined [Text Block]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Past Due [Line Items]
Inventory [Domain]
Inventory [Domain]
Stock-based compensation expense
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
LONG-TERM DEBT, NET OF CURRENT MATURITIES
Long-term debt, net of current maturities
Long-Term Debt and Lease Obligation
31-60 Days
Thirty One To Sixty Days Past Due [Member]
Thirty One To Sixty Days Past Due
Long-lived assets held and used
Property, Plant, and Equipment, Fair Value Disclosure
Franchise Rights, Measurement Input
Franchise Rights, Measurement Input
Value of input used to measure franchise rights.
Financial Instruments [Domain]
Financial Instruments [Domain]
Segments [Domain]
Segments [Domain]
Remaining borrowing capacity
Line of Credit Facility, Remaining Borrowing Capacity
Aggregate Pension Adjustments Service Cost
Aggregate Pension Adjustments Service Cost [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]
Fair Value Hierarchy [Domain]
Fair Value Hierarchy and NAV [Domain]
Inventory
Increase (Decrease) in Inventories
Inventory
Inventory, Net
Amortization of debt issuance costs and accretion of debt discounts
Amortization of Debt Issuance Costs and Discounts
Minimum
Minimum [Member]
Total interest margin after provision for credit losses
Interest Income (Expense), after Provision for Loan Loss
Cost of sales:
Cost of Revenue [Abstract]
Earnings Per Share
Earnings Per Share, Policy [Policy Text Block]
PROPERTY AND EQUIPMENT, accumulated depreciation
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Company Selected Measure Name
Company Selected Measure Name
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Long-term debt
Long-Term Debt and Lease Obligation, Including Current Maturities
Senior Notes
Senior Notes [Member]
Debt
Debt Disclosure [Text Block]
Aggregate Available
Trading Arrangement, Securities Aggregate Available Amount
Accounts payable
Accounts Payable, Current
Stock Appreciation Rights (SARs)
Stock Appreciation Rights (SARs) [Member]
AN Reportable Segments
AN Reportable Segments [Member]
AN Reportable Segments
Financial Asset, Aging [Axis]
Financial Asset, Aging [Axis]
All Executive Categories
All Executive Categories [Member]
Stockholders' Equity Note [Abstract]
Stockholders' Equity Note [Abstract]
Common stock, par value $0.01 per share; 1,500,000,000 shares authorized; 63,562,149 shares issued at June 30, 2026, and December 31, 2025, including shares held in treasury
Common Stock, Value, Issued
Measurement Input, Long-Term Revenue Growth Rate
Measurement Input, Long-Term Revenue Growth Rate [Member]
Operating Activities [Domain]
Operating Activities [Domain]
Title and Position [Axis]
Title and Position [Axis]
Weighted average common shares outstanding (in shares)
Diluted weighted average common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Weighted-average annual interest rate
Short-Term Debt, Weighted Average Interest Rate, at Point in Time
COMMITMENTS AND CONTINGENCIES (Note 16)
Commitments and Contingencies
Increase (decrease), net of effects from business acquisitions and divestitures:
Increase (Decrease) in Operating Liabilities [Abstract]
Non-GAAP Measure Description
Non-GAAP Measure Description [Text Block]
Revolving credit facilities letter of credit sublimit
Revolving Credit Facilities Letter Of Credit Sublimit
The maximum amount of letters of credit that can be issued under the terms of the revolving credit facilities.
Entity Small Business
Entity Small Business
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Abstract]
Document Transition Report
Document Transition Report
Net proceeds from (payments of) commercial paper
Proceeds from (Repayments of) Commercial Paper
Underlying Securities
Award Underlying Securities Amount
Equity Component [Domain]
Equity Component [Domain]
Document Period End Date
Document Period End Date
PEO Actually Paid Compensation Amount
PEO Actually Paid Compensation Amount
Income Taxes
Income Tax Disclosure [Text Block]
DILUTED EARNINGS PER SHARE:
Earnings Per Share, Diluted [Abstract]
Awards Close in Time to MNPI Disclosures, Table
Awards Close in Time to MNPI Disclosures [Table Text Block]
1.95% Senior Notes
Senior Notes at One Point Nine Five Percent Due 2028 [Member]
Senior Notes at One Point Nine Five Percent Due 2028
Average purchase price per share (in dollars per share)
Shares Acquired, Average Cost Per Share
Risks and Uncertainties [Abstract]
Risks and Uncertainties [Abstract]
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
Floorplan Payable [Table]
Floorplan Payable [Table]
Floorplan Payable [Table]
Product and Service [Axis]
Product and Service [Axis]
All Individuals
All Individuals [Member]
Long-term Debt, Type [Domain]
Long-Term Debt, Type [Domain]
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Abstract]
Purchases of property and equipment
Payments to Acquire Property, Plant, and Equipment
AUTO LOANS RECEIVABLE, allowance for credit losses
Less: allowances for expected credit losses
Balance as of beginning of year
Financing Receivable, Allowance for Credit Loss, Noncurrent
Transferred at Point in Time
Transferred at Point in Time [Member]
Name
Forgone Recovery, Individual Name
Finance leases and other debt
Finance leases and other debt obligations included in long-term debt
Finance Leases Included In Long-term Debt
Finance leases for real property and equipment classified as long-term debt.
Total Current Assets
Assets, Current
Statistical Measurement [Axis]
Statistical Measurement [Axis]
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]
Net assets held for sale
Net assets of disposal group current
Amount classified as assets, net of liabilities, attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.
ANF Auto Receivables Trust 2025-1
ANF Auto Receivables Trust 2025-1 [Member]
ANF Auto Receivables Trust 2025-1
Commitment fee on undrawn amounts (percent)
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage
Other Debt
Other Debt [Member]
Other Debt [Member]
Recourse
Recourse [Member]
Aggregate Erroneous Compensation Amount
Aggregate Erroneous Compensation Amount
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Payments of tax withholdings for stock-based awards
Payment, Tax Withholding, Share-Based Payment Arrangement
Peer Group Issuers, Footnote
Peer Group Issuers, Footnote [Text Block]
Auto loans receivable, Originated five years or more before current year
Financing Receivable, Originated, More than Five Years before Current Fiscal Year
AN Reportable Segment, Import
AN Reportable Segment, Import [Member]
Reporting Segment, Import [Member]
Erroneous Compensation Analysis
Erroneous Compensation Analysis [Text Block]
Stock Repurchase Program [Domain]
Share Repurchase Program [Domain]
Rule 10b5-1 Arrangement Terminated
Rule 10b5-1 Arrangement Terminated [Flag]
Revolving credit facility
Revolving credit facility, amount outstanding
Long-Term Line of Credit
AutoNation Finance Income [Table]
AutoNation Finance Income [Table]
AutoNation Finance Income
Silver
Credit Program Tier Silver [Member]
Credit Program Tier Silver
Earnings per share, diluted (in dollars per share)
Diluted EPS (in dollars per share)
Earnings Per Share, Diluted
Non-Trade
Non-Trade [Member]
Amounts borrowed to finance specific new and, to a lesser extent, used vehicle inventories with non-trade lenders (lenders that are not finance captive subsidiaries of the manufacturer).
Erroneously Awarded Compensation Recovery
Erroneously Awarded Compensation Recovery [Table]
Receivables from contracts with customers, net
Accounts Receivable, after Allowance for Credit Loss, Current
Title of 12(b) Security
Title of 12(b) Security
Long-lived assets held for sale
Long-Lived Asset, Held-for-Sale, Fair Value Disclosure
Impairment of Long-Lived Assets
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]
Credit spread adjustment on SOFR borrowings under our revolving credit facility
Credit Spread Adjustment on Credit Agreement
Credit spread adjustment added to the reference rate used to calculate the interest rate per annum on applicable borrowings under the credit agreement.
Revenue Recognition [Abstract]
Revenue Recognition [Abstract]
Treasury stock (in shares)
Treasury Stock, Common, Shares
Interest and fee income
Interest and Fee Income, Loans, Consumer Installment, Automobiles, Marine, and Other Vehicles
Earnings Per Share [Abstract]
Earnings Per Share [Abstract]
Consolidation Items [Domain]
Consolidation Items [Domain]
AutoNation Finance Income
AutoNation Finance Income (Loss) [Text Block]
Disclosure of the components of AutoNation Finance income (loss).
AutoNation Finance:
Finance income (loss) [Abstract]
Finance income (loss)
TOTAL GROSS PROFIT
Gross Profit
Short-term Debt, Type [Axis]
Short-Term Debt, Type [Axis]
Warehouse Facility, August 2026 expiration
Warehouse Facility One [Member]
Warehouse Facility One
Total auto loans receivable
Total auto loans receivable
Auto loans receivable
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process
Income tax payments, net of income tax refunds
Income Taxes Paid, Net
Shares repurchased (in shares)
Treasury Stock, Shares, Acquired
Award Timing Disclosures [Line Items]
AutoNation USA Stores
AutoNation USA Stores [Member]
AutoNation USA Stores [Member]
Components Of Inventory
Schedule of Inventory, Current [Table Text Block]
Senior notes
Long-Term Debt, Gross
Gains (losses) recognized related to equity investments
Gain (Loss) on Securities [Table Text Block]
Measurement Frequency [Domain]
Measurement Frequency [Domain]
Proceeds from non-recourse debt
Proceeds From Issuance Of Non-Recourse Debt
The cash inflow from the issuance of non-recourse debt.
Fair value of new equity investment
Equity Securities Without Readily Determinable, New Investment
Fair value of investment in equity security without readily determinable fair value acquired during the period.
Shareholders' Equity
Equity [Text Block]
Current-period gross write-offs, 2022 origination
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff
Auto loans receivable, Originated two years before current year
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year
NET INCOME
Net income
NET INCOME
Net Income (Loss) Attributable to Parent
Expiration Date
Trading Arrangement Expiration Date
Vehicle floorplan facilities, weighted-average interest rate (percent)
Vehicle Floorplan Facility Interest Rate
The average effective interest rate of vehicle floorplan facilities calculated at a point in time.
Current-period gross write-offs, 2025 origination
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff
Recourse Status [Axis]
Recourse Status [Axis]
Other liabilities
Increase (Decrease) in Other Operating Liabilities
Product Information [Line Items]
Product Information [Line Items]
Unrealized gains (losses) recognized during the reporting period on equity securities still held at the reporting date
Equity Securities, FV-NI, Unrealized Gain (Loss)
Timing of Transfer of Good or Service [Axis]
Timing of Transfer of Good or Service [Axis]
New Vehicle Floorplan Facilities
New Vehicle Floorplan Facilities [Member]
New Vehicle Floorplan Facilities
PROPERTY AND EQUIPMENT, net of accumulated depreciation of $2.6 billion and $2.5 billion, respectively
Property, Plant and Equipment, Net
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Preferred stock authorized (in shares)
Preferred Stock, Shares Authorized
Repurchases of common stock
Payments for Repurchase of Common Stock
Adoption Date
Trading Arrangement Adoption Date
Base Rate
Base Rate [Member]
Compensation Actually Paid vs. Net Income
Compensation Actually Paid vs. Net Income [Text Block]
Reconciliation of cash and cash equivalents
Cash, Cash Equivalents, And Restricted Cash [Table Text Block]
Reconciliation of cash and cash equivalents to the total amounts presented on the statement of cash flows, which includes restricted cash.
Financing Receivable [Table]
Financing Receivable, Past Due [Table]
Entity Current Reporting Status
Entity Current Reporting Status
4.75% Senior Notes
Senior Notes at Four Point Seven Five Percent Due 2030 [Member] [Member]
Senior Notes at Four Point Seven Five Percent Due 2030 [Member] [Member]
Receivables [Abstract]
Receivables [Abstract]
2.4% Senior Notes
Senior Notes at Two Point Four Percent Due 2031 [Member]
Senior Notes at Two Point Four Percent Due 2031
Floorplan Facilities New Vehicle Used Vehicle [Domain]
Floorplan Facilities New Vehicle Used Vehicle [Domain]
[Domain] for Floorplan Facilities New Vehicle Used Vehicle [Axis]
Awards Close in Time to MNPI Disclosures
Awards Close in Time to MNPI Disclosures [Table]
OPERATING INCOME
Operating Income (Loss)
Line of Credit
Line of Credit [Member]
Consolidated Entities [Domain]
Consolidated Entities [Domain]
Retained earnings
Retained Earnings (Accumulated Deficit)
Shares Repurchased Under Stock Repurchase Program
Class of Treasury Stock [Table Text Block]
Financial Instrument [Axis]
Financial Instrument [Axis]
Statement of Financial Position [Abstract]
Statement of Financial Position [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]
Executive Category:
Executive Category [Axis]
Corporate and other
Corporate and other income and adjustments
Operating income related to other businesses, including collision centers, AutoNation USA stand-alone used vehicle sales and service centers, and automotive auctions, all of which generate revenues but do not meet the quantitative thresholds for determining reportable segments. Amount also includes unallocated corporate overhead expenses, floorplan interest expense on used floorplan facilities, and retrospective commissions.
Transferred over Time
Transferred over Time [Member]
Franchise rights impairment
Gain/(Loss) on franchise rights
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill)
Other expense, net
Other Operating Income (Expense), Net
Arithmetic Average
Arithmetic Average [Member]
Gain on corporate-owned life insurance asset
Life Insurance, Corporate or Bank Owned, Change in Value
Current Fiscal Year End Date
Current Fiscal Year End Date
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]
Gain on new equity investment
Gain on new equity investment
Gain on new equity investment recorded at fair value.
Components Of Receivables, Net Of Allowances For Expected Credit Losses
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Other income (loss), net
Other income (loss), net
Other Nonoperating Income (Expense)
Statement [Table]
Statement [Table]
Adjustments to reconcile net income to net cash used in operating activities:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
Auto loans receivable, Originated four years before current year
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES:
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Equity Awards Adjustments, Excluding Value Reported in Compensation Table
Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member]
BALANCE at period start (in shares)
BALANCE at period end (in shares)
Shares, Issued
Receivables, net
Receivables, net
Receivables, Net, Current
Variable Rate [Domain]
Variable Rate [Domain]
Timing of Transfer of Good or Service [Domain]
Timing of Transfer of Good or Service [Domain]
Schedule of non-recourse Debt
Schedule of Non-recourse Debt [Table Text Block]
Schedule of Non-recourse Debt
Premium Stores Acquired
Premium Stores Acquired [Member]
Premium Stores Acquired
Other
Other Receivables, Gross, Current
Number of businesses divested
Number of businesses divested
The number of businesses divested or franchises terminated during the period.
All Adjustments to Compensation
All Adjustments to Compensation [Member]
Fair Value, Balance Sheet by Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Amendment Flag
Amendment Flag
Number of shares authorized
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized
Financing Receivable, Past Due
Financing Receivable, Past Due [Table Text Block]
INCOME BEFORE INCOME TAXES
Income (Loss) Attributable to Parent, before Tax
Treasury stock, at cost; 30,434,120 and 28,362,366 shares held, respectively
Treasury Stock, Common, Value
Supplemental noncash information, Lessee
Cash Flow Activities, Lessee [Table Text Block]
Tabular disclosure of cash paid for amounts included in the measurement of lease liabilities, as well as right-of-use assets obtained in exchange for new lease liabilities.
Termination Date
Trading Arrangement Termination Date
Net cash provided by financing activities
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Insider Trading Policies and Procedures Adopted
Insider Trading Policies and Procedures Adopted [Flag]
Measure:
Measure [Axis]
Provision for credit losses on auto loans receivable
Provision for credit losses
Financing Receivable, Credit Loss, Expense (Reversal)
Valuation Approach and Technique [Axis]
Valuation Approach and Technique [Axis]
Weighted average common shares outstanding (in shares)
Basic weighted average common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Basic
Remaining amount available for share repurchase
Share Repurchase Program, Remaining Authorized, Amount
Cash Flow Information
Cash Flow, Supplemental Disclosures [Text Block]
Basic and Diluted Earnings Per Share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Used vehicle
Used Vehicle [Member]
Used vehicle [Member]
Fair Holdings, Inc. [Member]
Fair Holdings, Inc. [Member]
Fair Holdings, Inc.
Contract assets reclassified to receivables
Contract with Customer, Asset, Reclassified to Receivable
Number of businesses acquired
Business Combination, Number of Businesses Acquired
Segment Reporting [Abstract]
Segment Reporting [Abstract]
TOTAL COST OF SALES
Total cost of sales
Cost of Revenue
Pay vs Performance Disclosure, Table
Pay vs Performance [Table Text Block]
Debt Disclosure [Abstract]
Debt Disclosure [Abstract]
Forgone Recovery due to Violation of Home Country Law, Amount
Forgone Recovery due to Violation of Home Country Law, Amount
Non-operating income (expense) items:
Nonoperating Income (Expense) [Abstract]
Entity Tax Identification Number
Entity Tax Identification Number
Valuation Technique, Discounted Cash Flow [Member]
Valuation Technique, Discounted Cash Flow [Member]
Import Stores Acquired
Import Stores Acquired [Member]
Import Stores Acquired
Forgone Recovery due to Expense of Enforcement, Amount
Forgone Recovery due to Expense of Enforcement, Amount
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Consolidated Entities [Axis]
Consolidated Entities [Axis]
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Common stock issued (in shares)
Common Stock, Shares, Issued
Employee [Member]
Employee [Member]
Employee [Member]
Payments of non-recourse debt
Payments Of Non-Recourse Debt
The cash outflow from payments of non-recourse debt.
Less: Net gains recognized during the period on equity securities sold/exchanged during the period
Equity Securities, FV-NI, Realized Gain (Loss)
Goodwill And Intangible Assets, Net
Goodwill and Intangible Assets Disclosure [Text Block]
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
Trading Arrangement:
Trading Arrangement [Axis]
Total Shareholder Return Amount
Total Shareholder Return Amount
Equity investments without readily determinable fair value, upward price adjustment
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount
ANF Auto Receivables Trust 2026-1
ANF Auto Receivables Trust 2026-1 [Member]
ANF Auto Receivables Trust 2026-1
Insider Trading Arrangements [Line Items]
Corporate and other
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Security Exchange Name
Security Exchange Name
Current
Financial Asset, Not Past Due [Member]
Other
Product and Service, Other [Member]
Auto Loans Receivable
Financing Receivables [Text Block]
Accrued purchases of property and equipment
Capital Expenditures Incurred but Not yet Paid
Maximum borrowing capacity under revolving credit facility
Aggregate capacity
Line of Credit Facility, Maximum Borrowing Capacity
Stock Repurchase Program Board Authorized Repurchases
Stock Repurchase Program Board Authorized Repurchases [Member]
Stock Repurchase Program Board Authorized Repurchases [Member]
Pension Adjustments Prior Service Cost
Pension Adjustments Prior Service Cost [Member]
Auto Loans Receivable
Auto Loans Receivable [Table Text Block]
Tabular disclosure of the components of auto loans receivable, net of unearned discounts and allowances for expected credit losses.
Indefinite-Lived Intangible Assets, Major Class Name [Domain]
Indefinite-Lived Intangible Assets, Major Class Name [Domain]
Material Terms of Trading Arrangement
Material Terms of Trading Arrangement [Text Block]
Other current liabilities
Other Liabilities, Current
Automotive Auction Operations
Automotive Auction Operations [Member]
Automotive Auction Operations [Member]
AutoNation Finance Income [Abstract]
AutoNation Finance Income
Vehicle floorplan facilities, maximum borrowing capacity
Vehicle Floorplan Facility Maximum Borrowing Capacity
The aggregate maximum borrowing capacity under new and used vehicle floorplan facilities without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facilities.
Statement [Line Items]
Debt Instrument [Line Items]
Statement [Line Items]
Consolidation Items [Axis]
Consolidation Items [Axis]
Variable Rate [Axis]
Variable Rate [Axis]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Rule 10b5-1 Arrangement Adopted
Rule 10b5-1 Arrangement Adopted [Flag]
Cash and cash equivalents
Cash and Cash Equivalent
Percentage of new vehicle sales from core brands (percent)
Percentage of New Vehicle Sales Core Brands
The percentage of new vehicles sold that represent the core brands of new vehicles sold by the company.
Common Stock
Common Stock [Member]
Floorplan Facilities New Vehicle Used Vehicle [Axis]
Floorplan Facilities New Vehicle Used Vehicle [Axis]
Floorplan Facilities New Vehicle Used Vehicle [Axis]
ANF Auto Receivables Trust 2026-2
ANF Auto Receivables Trust 2026-2 [Member]
ANF Auto Receivables Trust 2026-2
Trade
Trade [Member]
Amounts borrowed to finance the purchase of specific new vehicle inventories with the corresponding manufacturers' captive finance subsidiaries ("trade lenders").
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Non-NEOs
Non-NEOs [Member]
Measurement Input, Weighted Average Cost of Capital [Member]
Measurement Input, Weighted Average Cost of Capital [Member]
Measurement Input, Weighted Average Cost of Capital [Member]
INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation