Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] NEW MEXICO NEW MEXICO Weighted average Class A common shares outstanding Weighted Average Number of Shares Outstanding, Diluted [Abstract] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Title of 12(b) Security Title of 12(b) Security Impaired Long-Lived Assets Held and Used by Type [Axis] Impaired Long-Lived Assets Held and Used by Type [Axis] Carrying Value Reported Value Measurement [Member] Document Fiscal Year Focus Document Fiscal Year Focus Adjustment to Compensation, Amount Adjustment to Compensation Amount Merger Agreement Merger Agreement [Member] Merger Agreement Other financing obligations Other Financing Obligations [Member] Other Financing Obligations Segment Reporting [Abstract] Class A common stock, $0.01 par value; 1,000,000,000 shares authorized, 603,407,817 and 600,734,693 shares issued as of September 12, 2026 and February 28, 2026, respectively Common Stock, Value, Issued Employee tax withholding on vesting of restricted stock units Payment, Tax Withholding, Share-Based Payment Arrangement Schedule of Long-term Debt Schedule of Long-Term Debt Instruments [Table Text Block] EMPLOYEE BENEFIT PLANS Retirement Benefits [Text Block] Corporate adjustments Corporate Adjusted EBITDA Corporate Adjusted EBITDA Liability for settlements Loss Contingency Accrual Line of Credit Line of Credit [Member] Restatement Determination Date Restatement Determination Date Estimated return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Total debt Long-Term Debt and Lease Obligation, Including Current Maturities Seven reporting period Seven Reporting Period [Member] Seven Reporting Period Proceeds from sale of assets Proceeds from Sale of Productive Assets Amendment Flag Amendment Flag Tarrant County (Texas), Town of Hull (Massachusetts) and Monterey County (California) Tarrant County (Texas), Town of Hull (Massachusetts) and Monterey County (California) [Member] Tarrant County (Texas), Town of Hull (Massachusetts) and Monterey County (California) Current liabilities Liabilities, Current [Abstract] Claims denied Loss Contingency, Claims Denied, Number Loss Contingency, Claims Denied, Number Miscellaneous adjustments Gain (Loss) On Non-Operating Investments And Lease Adjustments Gain (Loss) On Non-Operating Investments And Lease Adjustments Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Payments of obligations under finance leases Finance Lease, Principal Payments NEVADA NEVADA Business combination, recognized asset acquired, property, plant, and equipment Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment Loss Contingencies [Table] Loss Contingencies [Table] Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax [Abstract] STOCKHOLDERS' EQUITY Members' Equity [Abstract] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Assets: Assets, Fair Value Disclosure [Abstract] Intangible assets, net Intangible Asset, Excluding Goodwill, after Accumulated Amortization Basic (in shares) Weighted average Class A common shares outstanding - Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Retirement Benefits [Abstract] Retirement Benefits [Abstract] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Reconciliation to Income before income taxes: Adjustments to Reconcile Retail Segment EBITDA to Income before Income Taxes [Abstract] Adjustments to Reconcile Retail Segment EBITDA to Income before Income Taxes Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Number of reportable segments Number of Reportable Segments Total current liabilities Liabilities, Current Opioid Settlement Framework Opioid Settlement Framework [Member] Opioid Settlement Framework Concentration Risk [Table] Concentration Risk [Table] LIFO expense LIFO expense LIFO expense Inventory, LIFO Reserve, Period Charge Entity Address, City or Town Entity Address, City or Town Pending Litigation Pending Litigation [Member] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Class of Stock [Axis] Class of Stock [Axis] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Significant observable inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Other comprehensive loss, net of tax Other Comprehensive Income (Loss), Net of Tax Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Defined benefit plan, transferred Defined Benefit Plan, Plan Assets, Increase (Decrease) for Assets Transferred to (from) Plan Concentration Risk Type [Axis] Concentration Risk Type [Axis] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Other comprehensive (loss) income before reclassifications OCI, before Reclassifications, before Tax, Attributable to Parent Recently issued accounting standards New Accounting Pronouncements, Policy [Policy Text Block] Litigation Case [Axis] Litigation Case [Axis] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Segment Reporting Segment Reporting [Table Text Block] Qui Tam Lawsuits Qui Tam Lawsuits [Member] Qui Tam Lawsuits [Member] Use of estimates Use of Estimates, Policy [Policy Text Block] Revenue recognition Revenue from Contract with Customer [Policy Text Block] Other comprehensive loss Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Document Period End Date Document Period End Date Changes in operating assets and liabilities, net of acquisitions: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] New Mexico Counties New Mexico Counties [Member] New Mexico Counties Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Security Exchange Name Security Exchange Name Treasury stock, at cost, 127,215,011 and 101,191,791 shares held as of September 12, 2026 and February 28, 2026, respectively Treasury Stock, Common, Value Tax benefit (expense) Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Total Liabilities, Fair Value Disclosure Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Current operating lease obligations Operating Lease, Liability, Current NET INCOME PER CLASS A COMMON SHARE Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name New Albertsons L.P. Notes due 2027 to 2031, interest rate range of 6.52% to 8.70% NALP Notes, Maturity 2027 To 2031 [Member] NALP Notes, Maturity 2027 To 2031 Net income per Class A common share Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Schedule of Sales Revenue by Type of Similar Products Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Table Text Block] Trading Symbol Trading Symbol Geographical [Domain] Geographical [Domain] Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Company Selected Measure Name Company Selected Measure Name Certain legal and regulatory accruals and settlements, net Gain (Loss) from Litigation Settlement Amounts reclassified from accumulated other comprehensive income Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Concentration Risk [Line Items] Concentration Risk [Line Items] Pension and Post-retirement benefit plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Long-term debt, gross Long-Term Debt, Gross Business transformation Business Transformation Cost Business Transformation Cost Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Threatened Litigation Threatened Litigation [Member] Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Diluted (in shares) Weighted average Class A common shares outstanding - Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Other Other Comprehensive Income, Other, Net of Tax Property and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Contribution made to defined benefit plan Defined Benefit Plan, Plan Assets, Contributions by Employer Gross margin Gross Profit Restricted cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Impairment loss Long-Lived Asset, Held and Used, Impairment Loss Other operating assets and liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Award Timing Predetermined Award Timing Predetermined [Flag] Treasury Stock Treasury Stock, Common [Member] Outstanding balance on letters of credit Letters of Credit Outstanding, Amount Defined benefit pension obligation Defined Benefit Plan, Accumulated Benefit Obligation, (Increase) Decrease for Settlement and Curtailment Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Equity-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Quoted prices in active markets for identical assets (Level 1) Fair Value, Inputs, Level 1 [Member] Other Accumulated Other Comprehensive Income, Other, Attributable to Parent [Member] Accumulated Other Comprehensive Income, Other, Attributable to Parent [Member] State Of Washington Litigation State Of Washington Litigation [Member] State Of Washington Litigation Effective tax rate Effective Income Tax Rate Reconciliation, Percent Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Settlement income Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement Litigation Status [Domain] Litigation Status [Domain] Dilutive effect of restricted stock units (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements All Executive Categories All Executive Categories [Member] Operating lease liabilities Increase (Decrease) in Operating Lease Liability Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Total debt amount Long-Term Debt, Fair Value Schedule of Components of Net Pension and Post-retirement Expense Schedule of Net Benefit Costs [Table Text Block] Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Concentration Risk Type [Domain] Concentration Risk Type [Domain] Schedule of Computation of Basic and Diluted Net Loss Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Letter Of Credit Sub-Facility Letter Of Credit Sub-Facility [Member] Letter Of Credit Sub-Facility Debt Disclosure [Abstract] Debt Disclosure [Abstract] Other revenue Third Party Sales And Other Miscellaneous Revenue [Member] Third Party Sales And Other Miscellaneous Revenue Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Current maturities of long-term debt and finance lease obligations Less current maturities Long-Term Debt and Lease Obligation, Current SEGMENT INFORMATION Segment Reporting [Text Block] Minimum Minimum [Member] Outstanding balance on line of credit Long-Term Line of Credit Dividends paid on common stock Payments of Ordinary Dividends, Common Stock Expiration Date Trading Arrangement Expiration Date LIABILITIES Liabilities [Abstract] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Deferred financing costs Amortization Of Debt Issuance Costs And Write Off Of Deferred Debt Issuance Cost Amortization Of Debt Issuance Costs And Write Off Of Deferred Debt Issuance Cost 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] Reportable Segment Reportable Segment [Member] Reportable Segment Attorneys' fees and costs Loss Contingency, Estimate of Possible Loss Cash dividends declared on common stock Dividends, Common Stock Income, net Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Exercise Price Award Exercise Price Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Litigation Status [Axis] Litigation Status [Axis] Segment Reporting [Line Items] Segment Reporting [Line Items] Document Quarterly Report Document Quarterly Report Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Safeway Inc. Notes due 2027 to 2031, interest rate range of 7.25% to 7.45% Safeway Notes, Maturity 2027 to 2031 [Member] Safeway Notes, Maturity 2027 to 2031 LONG-TERM DEBT AND FINANCE LEASE OBLIGATIONS Debt Disclosure [Text Block] Payments on long-term borrowings, including ABL facility Repayments of long-term debt Repayments of Long-Term Debt Convertible Preferred Stock Convertible Preferred Stock [Member] Deferred financing costs Debt Issuance Costs, Net Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Adoption Date Trading Arrangement Adoption Date Inventories, net Inventory, Policy [Policy Text Block] Counterparty Name [Domain] Counterparty Name [Domain] Stated interest rate percentage Debt Instrument, Interest Rate, Stated Percentage Total stockholders' equity Beginning balance Ending balance Equity, Attributable to Parent Settlement gain Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement ASSETS Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Pharmacy Benefit Manager (PBM) Litigation Pharmacy Benefit Manager (PBM) Litigation [Member] Pharmacy Benefit Manager (PBM) Litigation Insider Trading Policies and Procedures [Line Items] Finance lease obligations Finance Lease, Liability Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Deferred income tax Deferred Income Tax Expense (Benefit) Selling and administrative expenses Selling, General and Administrative Expense Blackfeet Tribe Blackfeet Tribe [Member] Blackfeet Tribe Business Combination [Domain] Business Combination [Domain] Interest expense, net Interest expense, net Interest Income (Expense), Nonoperating COMMITMENTS AND CONTINGENCIES AND OFF BALANCE SHEET ARRANGEMENTS Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Number of Operating Segments Number of Operating Segments Dilutive effect of restricted stock units Restricted Stock Units (RSUs) [Member] Entity Central Index Key Entity Central Index Key All Adjustments to Compensation All Adjustments to Compensation [Member] Business Combination [Axis] Business Combination [Axis] Equity [Abstract] Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Payments for settlements Payments for Legal Settlements Other activity Stockholders' Equity, Other Income Statement [Abstract] Income Statement [Abstract] Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] City Area Code City Area Code Accumulated other comprehensive income AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Operating lease right-of-use assets amortization Operating Lease, Right-of-Use Asset, Periodic Reduction American Tribes American Tribes [Member] American Tribes Name Forgone Recovery, Individual Name Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] United States ex rel. Schutte and Yarberry v. SuperValu, New Albertson's, Inc., et al. United States ex rel. Schutte and Yarberry v. SuperValu, New Albertson's, Inc., et al. [Member] United States ex rel. Schutte and Yarberry v. SuperValu, New Albertson's, Inc., et al. Statement [Line Items] Statement [Line Items] TOTAL ASSETS Assets Number of store formats Number Of Store Format Number of Store Format Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Amortization of prior service cost Defined Benefit Plan, Amortization of Prior Service Cost (Credit) PEO PEO [Member] Measurement Basis [Axis] Measurement Basis [Axis] Other long-term liabilities Other Liabilities, Noncurrent Goodwill Goodwill Retirement Plan Type [Axis] Retirement Plan Type [Axis] Business combination, recognized asset acquired, inventory, current Business Combination, Recognized Asset Acquired, Inventory, Current Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Reporting Unit [Axis] Reporting Unit [Axis] Retained earnings Retained Earnings [Member] Long-term operating lease obligations Operating Lease, Liability, Noncurrent Series A Convertible Preferred Stock Series A Preferred Stock [Member] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Award Timing Disclosures [Line Items] Diluted net income per Class A common share (in dollars per share) Earnings Per Share, Diluted Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Liabilities: Liabilities, Fair Value Disclosure [Abstract] Litigation Case [Domain] Litigation Case [Domain] New Albertsons L.P. Notes New Albertsons L.P. Notes [Member] New Albertsons L.P. Notes Other Other Products and Services [Member] Other Products and Services [Member] Fuel Fuel [Member] Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Net sales and other revenue Revenue from Contract with Customer, Excluding Assessed Tax Interest cost Defined Benefit Plan, Interest Cost Derivative contracts Derivative Asset Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Fair Value Estimate of Fair Value Measurement [Member] Other investing activities Payment for (Proceeds from) Other Investing Activity Inventories, net Increase (Decrease) in Inventories Segment Reporting [Table] Segment Reporting [Table] Expected future employer contributions for remainder of the fiscal year Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year Other current assets Other Assets, Current Retail Stores Retail Stores [Member] Retail Stores Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Operating income Operating Income (Loss) Current Fiscal Year End Current Fiscal Year End Date Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount 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] Payment period two Loss Contingency, Settlement Agreement, Payment Period Two Loss Contingency, Settlement Agreement, Payment Period Two Dividends declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number Consolidated Cases for Multidistrict Litigation Consolidated Cases For Multidistrict Litigation [Member] Consolidated Cases For Multidistrict Litigation Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Service cost Defined Benefit Plan, Service Cost Class A-1 convertible common stock Common Class A-1 Convertible [Member] Common Class A-1 Convertible [Member] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Common stock shares issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Treasury stock, at cost (in shares) Beginning balance (in shares) Ending balance (in shares) Treasury Stock, Common, Shares OTHER COMPREHENSIVE INCOME OR LOSS Comprehensive Income (Loss) Note [Text Block] Equity Components [Axis] Equity Components [Axis] Product and Service [Domain] Product and Service [Domain] Class A common stock Common Class A [Member] Entity Interactive Data Current Entity Interactive Data Current Deferred income taxes Deferred Income Tax Liabilities, Net Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Impaired Long-Lived Assets Held and Used, Asset Name [Domain] Impaired Long-Lived Assets Held and Used, Asset Name [Domain] Entity Small Business Entity Small Business Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Unamortized debt discounts Debt Instrument, Unamortized Discount Termination Date Trading Arrangement Termination Date Retail segment EBITDA Retail Segment EBITDA Retail Segment EBITDA Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Business combination, recognized asset acquired, identifiable intangible asset, finite-lived Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Shares issued and employee tax withholding on vesting of restricted stock units Restricted Stock, Value, Shares Issued Net of Tax Withholdings Recognition of pension loss Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Payment period three Loss Contingency, Settlement Agreement, Payment Period Three Loss Contingency, Settlement Agreement, Payment Period Three Other current liabilities Other Liabilities, Current Other assets Other Assets, Noncurrent Document Type Document Type Business acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired 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] Fair Value as of Grant Date Award Grant Date Fair Value Loss (gain) on property dispositions and impairment losses, net Loss (gain) on property dispositions and impairment losses, net (Loss) gain on property dispositions and impairment losses, net (Loss) gain on property dispositions and impairment losses, net Gain (Loss) On Property Dispositions, Asset Impairment and Exit Costs Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Proceeds from issuance of long-term debt, including ABL facility Proceeds from Issuance of Long-Term Debt Local Phone Number Local Phone Number Other post-retirement benefits Other Postretirement Benefits Plan [Member] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Other activity (in shares) Stockholders' Equity, Other Shares Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Retail segment expenses: Less Retail Segment EBITDA [Abstract] Less Retail Segment EBITDA Commitments and contingencies Commitments and Contingencies Fresh Fresh [Member] Fresh [Member] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Accounting Standards Update and Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Accounts payable, accrued salaries and wages and other accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Acquisitions Business Combination [Policy Text Block] Counterparty Name [Axis] Counterparty Name [Axis] Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Payment period one Loss Contingency, Settlement Agreement, Payment Period One Loss Contingency, Settlement Agreement, Payment Period One Inventories, net Inventory, Net Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Significant unobservable inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Repurchase of common stock (in shares) Treasury Stock, Shares, Acquired PEO Name PEO Name Geographical [Axis] Geographical [Axis] Restricted cash Restricted Cash Contract liability related to gift cards Contract with Customer, Liability Other segment expenses Segment Reporting, Other Segment Item, Amount Hames Corporation Hames Corporation [Member] Hames Corporation Non-perishables Non-Perishables [Member] Non-Perishables [Member] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Shares issued and employee tax withholding on vesting of restricted stock units (in shares) Restricted Stock, Shares Issued Net of Shares for Tax Withholdings Repurchase of common stock Treasury Stock, Value, Acquired, Cost Method Product Concentration Risk Product Concentration Risk [Member] Cash and cash equivalents and restricted cash at beginning of period Cash and cash equivalents and restricted cash at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] 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] Debt Instrument [Axis] Debt Instrument [Axis] Reporting Unit [Domain] Reporting Unit [Domain] Equity-based compensation expense Equity-based compensation expense Share-Based Payment Arrangement, Noncash Expense Employee costs Labor and Related Expense Post-judgement interest accrual Loss Contingency, Post-Judgment Interest Accrual, Percentage Loss Contingency, Post-Judgment Interest Accrual, Percentage Non-current investments Investments, Noncurrent, Fair Value Disclosure Investments, Noncurrent, Fair Value Disclosure Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Basic net income per Class A common share (in dollars per share) Earnings Per Share, Basic Treasury stock purchase, at cost Payments for Repurchase of Common Stock Merchandise costs, including advertising, distribution and freight Merchandise Cost, Including Advertising, Distribution And Freight Expense Merchandise Cost, Including Advertising, Distribution And Freight Expense Total current assets Assets, Current Merger-related costs Noncash Merger Related Costs Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Cost of sales Cost of Revenue Award Type [Axis] Award Type [Axis] Payments for debt financing costs Payments of Financing Costs Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Retained earnings Retained Earnings (Accumulated Deficit) Product and Service [Axis] Product and Service [Axis] Senior Unsecured Notes due 2028 to 2034, interest rate range of 3.50% to 6.50% Senior Unsecured Notes Maturity 2028 to 2034 [Member] Senior Unsecured Notes Maturity 2028 to 2034 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] Number of reporting unit with an aggregate goodwill balance Goodwill, Reporting Unit, Number Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Pension Pension Plan [Member] Class A Common Stock Common Stock [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Attorneys' fees and costs Litigation Settlement, Fee Expense Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Cover [Abstract] Cover [Abstract] Percentage of total net sales and other revenue Concentration Risk, Percentage Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Equity Awards Adjustments Equity Awards Adjustments [Member] TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity Termination fee Business Combination, Termination Fee Business Combination, Termination Fee Accrued salaries and wages Accrued Salaries, Current Employee Stock Option Share-Based Payment Arrangement, Option [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Pharmacy Pharmacy [Member] Pharmacy [Member] Tabular List, Table Tabular List [Table Text Block] Additional paid-in capital Additional Paid in Capital Notes Payable Notes Payable to Banks [Member] Other income, net Other Nonoperating Income (Expense) Short-term investments Short-Term Investments, Fair Value Disclosure Short-Term Investments, Fair Value Disclosure Name Awards Close in Time to MNPI Disclosures, Individual Name 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] Participating States And Political Subdivisions Participating States And Political Subdivisions [Member] Participating States And Political Subdivisions Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Receivables, net Receivables, Net, Current Adjustment to Compensation: Adjustment to Compensation [Axis] Number of lawsuits filed against the company Loss Contingency, Pending Claims, Number Class of Stock [Domain] Class of Stock [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Payments for property, equipment and intangibles, including lease buyouts Payments to Acquire Productive Assets Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Contributions to pension and post-retirement benefit plans, net of (income) expense Payment for Pension and Other Postretirement Benefits Additional claims Loss Contingency, Additional Claims, Number Loss Contingency, Additional Claims, Number Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total Assets, Fair Value Disclosure Long-term debt and finance lease obligations Long-term portion Long-Term Debt and Lease Obligation Sales Revenue, Product Line Revenue, Product and Service Benchmark [Member] One Reporting Units One Reporting Units [Member] One Reporting Units Name Measure Name Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Other operating activities Other Noncash Income (Expense) Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Business combination, consideration transferred Business Combination, Consideration Transferred Undesignated preferred stock Undesignated Preferred Stock [Member] Undesignated Preferred Stock [Member] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Additional paid-in capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and Cash Equivalent Claims settled Loss Contingency, Claims Settled, Number Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Company Selected Measure Amount Company Selected Measure Amount Three reporting units Three Reporting Units [Member] Three Reporting Units Current assets Assets, Current [Abstract] Derivative contracts Derivative Liability Non-PEO NEO Non-PEO NEO [Member] Senior Notes Senior Notes [Member] Entity Address, Address Line One Entity Address, Address Line One Income tax expense Income Tax Expense (Benefit) Award Timing Method Award Timing Method [Text Block] Basis of Presentation Consolidation, Policy [Policy Text Block] Net increase (decrease) in cash and cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Amortization of net actuarial gain Defined Benefit Plan, Amortization of Gain (Loss) AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Net income Net income Net income Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Location, Statement of Financial Position, Balance [Axis] Location, Statement of Financial Position, Balance [Axis] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] ABL Facility ABL Facility [Member] ABL Facility Schedule of Changes In the Accumulated Other Comprehensive Income or Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Receivables, net Increase (Decrease) in Receivables Retail segment sales Retail Sales [Member] Retail Sales Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] Number of new claims filed Loss Contingency, New Claims Filed, Number Series A-1 Convertible Preferred Stock Series A-1 Convertible Preferred Stock [Member] Series A-1 Convertible Preferred Stock [Member] Self-insurance assets and liabilities Increase (Decrease) in Self Insurance Reserve Loss contingency, amount of damages sought (in excess of) Loss Contingency, Damages Sought, Value Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]