0000001 - Document - Document And Entity Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Statements Of Earnings link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Statements Of Earnings link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Consolidated Statements Of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Consolidated Statements Of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Consolidated Statements of Shareholders' Equity Statement link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Consolidated Statements of Shareholders' Equity Statement link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Supplemental Cash Flow Information link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - Supplemental Cash Flow Information Supplemental Cash Flow Information link:presentationLink link:calculationLink link:definitionLink 9952159 - Statement - Supplemental Cash Flow Information Supplemental Cash Flow Information link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Background link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Revenue link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - CarMax Auto Finance link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Auto Loans Held for Investment link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Derivative Instruments And Hedging Activities link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Cancellation Reserves link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Stock and Stock-Based Incentive Plans link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Net Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Accumulated Other Comprehensive Income (Loss) link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Leases (Notes) link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Contingent Liabilities link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Background Basis of Accounting (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Revenue (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - CarMax Auto Finance (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Auto Loans Held for Investment (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Cancellation Reserves (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Stock and Stock-Based Incentive Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - 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Auto Loans Held for Investment, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Auto Loans Held for Investment (By Major Credit Grade) (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Auto Loans Held for Investment (Allowance for Loan Losses) (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Auto Loans Held for Investment (Past Due Receivables) (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Derivative Instruments And Hedging Activities (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Fair Value Measurements (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Fair Value Measurements (Schedule Of Items Measured At Fair Value On A Recurring Basis) (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Fair Value Measurements Fair Value Measurements (Schedule of Carrying Values and Estimated Fair Values) (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Cancellation Reserves (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Cancellation Reserves (Schedule Of Cancellation Reserves Accrual) (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Income Taxes (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Debt (Schedule Of Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Debt (Schedule of Funding Vehicles) (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Debt (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Stock and Stock-Based Incentive Plans (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Stock and Stock-Based Incentive Plans (Schedule of Common Stock Repurchases) (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Stock and Stock-Based Incentive Plans (Composition of Share-Based Compensation Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Stock and Stock-Based Incentive Plans (Composition of Share-Based Compensation Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Stock and Stock-Based Incentive Plans (Composition of Share-Based Compensation Expense - By Grant Type) (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Stock and Stock-Based Incentive Plans (Unrecognized Compensation Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Stock and Stock-Based Incentive Plans (Stock Option Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Stock and Stock-Based Incentive Plans (Stock Option Information) (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Stock and Stock-Based Incentive Plans (Assumptions Used to Estimate Option Values) (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Stock and Stock-Based Incentive Plans (Cash-Settled Restricted Stock Unit Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Stock and Stock-Based Incentive Plans (Cash-Settled Restricted Stock Unit Information) (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Stock and Stock-Based Incentive Plans (Expected Cash Settlement Range Upon Restricted Stock Unit Vesting) (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Stock and Stock-Based Incentive Plans (Market Stock Unit Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Stock and Stock-Based Incentive Plans (Market Stock Unit Information) (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Stock and Stock-Based Incentive Plans (Stock-Settled Restricted Stock Unit Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Stock and Stock-Based Incentive Plans (Stock-Settled Restricted Stock Unit Information) (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Net Earnings Per Share (Basic And Dilutive Net Earnings Per Share Reconciliations) (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Net Earnings Per Share (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Changes In and Reclassifications Out of Accumulated Other Comprehensive Income (Loss)) (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - 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Disclosure - Leases Maturities of Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - Contingent Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink