Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Short-Term Debt, Type [Axis] Short-Term Debt, Type [Axis] Gain on insurance proceeds related to fixed assets Gain On Insurance Proceeds Related To Fixed Assets Gain On Insurance Proceeds Related To Fixed Assets Title of 12(b) Security Title of 12(b) Security Carrying Value Reported Value Measurement [Member] Subsequent Event Subsequent Event [Member] Document Fiscal Year Focus Document Fiscal Year Focus Adjustment to Compensation, Amount Adjustment to Compensation Amount Inventory Inventory [Member] Inventory Segment Reporting [Abstract] Segment Reporting [Abstract] Common stock, par value $0.01; 600,000,000 shares authorized, 193,393,380, 198,505,205 and 210,151,340 shares issued and outstanding, respectively Common Stock, Value, Issued Net sales Disposal Group, Including Discontinued Operation, Revenue From Contract With Customer Disposal Group, Including Discontinued Operation, Revenue From Contract With Customer Cash paid for taxes on exercises/vesting of stock-based compensation Payment, Tax Withholding, Share-Based Payment Arrangement Line of Credit Line of Credit [Member] Restatement Determination Date Restatement Determination Date Proceeds from sale of discontinued operations Proceeds from Divestiture of Businesses Amendment Flag Amendment Flag Current liabilities: Liabilities, Current [Abstract] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Disposal Group Classification [Axis] Disposal Group Classification [Axis] Operating lease right-of-use assets Disposal Group, Including Discontinued Operation, Operating Lease, Right-of-Use assets Disposal Group, Including Discontinued Operation, Operating Lease, Right-of-Use assets Loss Contingencies [Table] Loss Contingencies [Table] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Property, plant and equipment, net Disposal Group, Including Discontinued Operation, Property, Plant, and Equipment Unfavorable Regulatory Action, Antidumping Order, Paper Plates Unfavorable Regulatory Action, Antidumping Order, Paper Plates [Member] Unfavorable Regulatory Action, Antidumping Order, Paper Plates Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Entity Address, State or Province Entity Address, State or Province Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Cash and cash equivalents Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents Capital expenditures Segment Reporting, Long-Lived Asset, Expenditure for Addition Share Repurchase Program [Domain] Share Repurchase Program [Domain] Basic (in shares) Weighted average number of shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount 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 Family Dollar Family Dollar [Member] Family Dollar [Member] Total current liabilities Liabilities, Current Net cash used in investing activities of continuing operations Cash Provided by (Used in) Investing Activity, Continuing Operation Short-Term Debt, Type [Domain] Short-Term Debt, Type [Domain] Repurchase of stock (in shares) Stock Repurchased During Period, Excluding Excise Tax, Shares Stock Repurchased During Period, Excluding Excise Tax, Shares Entity Address, City or Town Entity Address, City or Town Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Guarantee lease obligation, number of stores Guarantee Lease Obligation, Number of Stores Guarantee Lease Obligation, Number of Stores Noncurrent assets of discontinued operations Total assets of discontinued operations Disposal Group, Including Discontinued Operation, Assets Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Fair Value, Inputs, Level 2 Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Current portion of long-term debt Long-Term Debt, Current Maturities United States UNITED STATES Other assets Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent Subsequent Event Type [Axis] Subsequent Event Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Net cash provided by operating activities of continuing operations Cash Provided by (Used in) Operating Activity, Continuing Operation Recently Adopted Accounting Pronouncements and Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Accrued capital expenditures Capital Expenditures Incurred but Not yet Paid Schedule of Segment Reporting Information Segment Reporting [Table Text Block] Total other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Condensed Consolidated Income Statement Data: Segment Reporting, Profit (Loss) [Abstract] Aggregate face or principal amount Long-Term Debt Income taxes payable Increase (Decrease) in Income Taxes Payable Document Period End Date Document Period End Date Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Current liabilities of discontinued operations Disposal Group, Including Discontinued Operation, Liabilities, Current Debt issued Debt Instrument, Face Amount Number Of Provinces In Which Entity Operates Number Of Provinces In Which Entity Operates Number Of Provinces In Which Entity Operates Shareholders' Equity Equity [Text Block] Basic earnings per share of common stock: Earnings Per Share, Basic [Abstract] Security Exchange Name Security Exchange Name Debt instrument, term Debt Instrument, Term Gain on Business Interruption Insurance Recovery, Statement of Income or Comprehensive Income [Extensible Enumeration] Gain on Business Interruption Insurance Recovery, Statement of Income or Comprehensive Income [Extensible Enumeration] Supply Chain Finance Program Supplier Finance Program [Text Block] Excise tax on repurchases of stock Stock Repurchased During Period, Excise Tax, Value Stock Repurchased During Period, Excise Tax, Value Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Current portion of operating lease liabilities Operating Lease, Liability, Current Merchandise inventories Retail Related Inventory, Merchandise Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Cash flows from discontinued operations: Cash Provided by (Used in) Discontinued Operation [Abstract] Earnings Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name 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] Variety Variety [Member] Variety [Member] Total liabilities Liabilities 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] Income taxes payable Accrued Income Taxes, Current Consumable Consumable [Member] Consumable [Member] Company Selected Measure Name Company Selected Measure Name Cash, cash equivalents and restricted cash of discontinued operations included in current assets of discontinued operations on the Unaudited Condensed Consolidated Balance Sheets Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Discontinued Operation Non-cash transactions: Noncash Investing and Financing Items [Abstract] Diluted earnings per share of common stock: Earnings Per Share, Diluted [Abstract] Credit Facility [Domain] Credit Facility [Domain] Asset Class [Domain] Asset Class [Domain] Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration] Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Diluted (in shares) Weighted average number of shares and dilutive potential shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Disposal Group Name [Domain] Disposal Group Name [Domain] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Commercial Paper Commercial Paper [Member] Disposal Groups, Including Discontinued Operations Disposal Groups, Including Discontinued Operations [Table Text Block] Short-term borrowings Short-Term Debt Other assets Increase (Decrease) in Other Noncurrent Assets Gross profit Gross Profit Operating lease right-of-use assets and liabilities, net Increase (Decrease) In Operating Lease Right-Of-Use Asset and Liabilities, Net Increase (Decrease) In Operating Lease Right-Of-Use Asset and Liabilities, Net Award Timing Predetermined Award Timing Predetermined [Flag] Net cash provided by operating activities of discontinued operations Cash Provided by (Used in) Operating Activity, Discontinued Operation Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Fair value, inputs, level 1 Fair Value, Inputs, Level 1 [Member] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Cash paid for: Cash paid for [Abstract] -- None. No documentation exists for this element. -- Dilutive impact of share-based awards (as determined by applying the treasury stock method) (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements All Executive Categories All Executive Categories [Member] Number of States in which Entity Operates Number of States in which Entity Operates Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Long-term borrowings Long-Term Debt, Fair Value Trade name intangible asset Disposal Group, Including Discontinued Operation, Intangible Assets Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Concentration Risk Type [Domain] Concentration Risk Type [Domain] Property Lease Guarantee Property Lease Guarantee [Member] Accounting Changes and Error Corrections [Abstract] Income taxes receivable Increase (Decrease) in Income Taxes Receivable Schedule of basic and diluted net income per share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Gain on business interruption insurance recovery Gain on Business Interruption Insurance Recovery Segments and Disaggregated Revenue Segment Reporting [Text Block] Expiration Date Trading Arrangement Expiration Date LIABILITIES Liabilities [Abstract] Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Effect of exchange rate changes on cash, cash equivalents and restricted cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Weighted average common shares outstanding: Denominator: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Continuing operations (usd per share) Income (Loss) from Continuing Operations, Per Diluted Share Continuing operations (usd per share) Income (Loss) from Continuing Operations, Per Basic Share Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Unfavorable Regulatory Action, Antidumping Order, Aluminum Pans Unfavorable Regulatory Action, Antidumping Order, Aluminum Pans [Member] Unfavorable Regulatory Action, Antidumping Order, Aluminum Pans Valuation allowance against assets held for sale Valuation allowance to adjust assets to estimated fair value, less costs of disposal Disposal Group, Including Discontinued Operation, Asset Adjustments, Excluding Costs Of Disposal, Valuation Allowance Disposal Group, Including Discontinued Operation, Asset Adjustments, Excluding Costs Of Disposal, Valuation Allowance 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] Disposal Group, Including Discontinued Operations [Line Items] Disposal Group, Including Discontinued Operations [Line Items] Loss Contingency, Estimate of Possible Loss Loss Contingency, Estimate of Possible Loss Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Other current assets Disposal Group, Including Discontinued Operation, Other Assets, Current Common stock, authorized (in shares) Common Stock, Shares Authorized Exercise Price Award Exercise Price Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Segment Reporting [Line Items] Segment Reporting [Line Items] Share repurchase authorized amount Share Repurchase Program, Authorized, Amount Document Quarterly Report Document Quarterly Report Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Legal Proceedings Legal Costs, Policy [Policy Text Block] 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] 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 on the Unaudited Condensed Consolidated Statements of Cash Flows Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Short-Term Borrowings and Long-Term Debt Debt Disclosure [Text Block] Selling, general and administrative expenses Disposal Group, Including Discontinued Operation, General and Administrative Expense Disposal Group Classification [Domain] Disposal Group Classification [Domain] 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 Secured Debt Secured Debt [Member] Adoption Date Trading Arrangement Adoption Date Purchase consideration Disposal Group, Including Discontinued Operation, Consideration Total shareholders’ equity Beginning balance Ending balance Equity, Attributable to Parent Merchandise inventories Increase (Decrease) in Retail Related Inventories 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] Insider Trading Policies and Procedures [Line Items] Transition services agreement income, net Other Operating Income Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Income taxes payable, long-term Accrued Income Taxes, Noncurrent Provision for deferred income taxes Deferred Income Tax Expense (Benefit) Selling, general and administrative expenses Selling, General and Administrative Expense Interest expense, net Interest expense, net Interest Income (Expense), Nonoperating Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Antidilutive securities (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Revenue, Segment Benchmark Revenue, Segment Benchmark [Member] Entity Central Index Key Entity Central Index Key Accumulated depreciation, property, plant and equipment Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization All Adjustments to Compensation All Adjustments to Compensation [Member] Corporate, Support and Other Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] 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] Seasonal Seasonal [Member] Seasonal [Member] Tariff refund received Unusual Or Infrequent Item, Or Both, Tariffs, Refund Received Unusual Or Infrequent Item, Or Both, Tariffs, Refund Received Contingencies Legal Matters and Contingencies [Text Block] Noncurrent liabilities of discontinued operations Total liabilities of discontinued operations Disposal Group, Including Discontinued Operation, Liabilities Shareholders’ equity: Equity, Attributable to Parent [Abstract] Income Statement [Abstract] Income Statement [Abstract] Issuance of stock under Employee Stock Purchase Plan (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Net cash provided by discontinued operations Cash Provided by (Used in) Discontinued Operation Share Repurchase Program [Table] Share Repurchase Program [Table] Deferred income taxes, net Deferred Income Tax Assets, Net Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Debt instrument, basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Condensed Consolidated Financial Statement Details Condensed Financial Statements [Text Block] City Area Code City Area Code Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Accounts payable Disposal Group, Including Discontinued Operation, Accounts Payable Name Forgone Recovery, Individual Name Increase in valuation allowance Asset Adjustments, Excluding Costs Of Disposal, Increase In Valuation Allowance Asset Adjustments, Excluding Costs Of Disposal, Increase In Valuation Allowance Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Statement [Line Items] Statement [Line Items] Total assets Assets Five-Year Credit Facility Five-Year Credit Facility [Member] Five-Year Credit Facility Total revenue Disposal Group, Including Discontinued Operation, Revenue Issuance of stock under Employee Stock Purchase Plan Stock Issued During Period, Value, Employee Stock Purchase Plan PEO PEO [Member] Beginning balance (in shares) Ending balance (in shares) Shares, Outstanding Contractual obligation, year two Contractual Obligation, to be Paid, Year Two Dollar Tree Dollar Tree [Member] Dollar Tree Measurement Basis [Axis] Measurement Basis [Axis] Other liabilities Other Liabilities, Noncurrent Goodwill Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Cash and cash equivalents Cash Equivalents, at Carrying Value Term Loan Term Loan [Member] Term Loan Subsequent Event Type [Domain] Subsequent Event Type [Domain] Payables and Accruals [Abstract] Discontinued Operations, Disposed of by Sale Discontinued Operations, Disposed of by Sale [Member] Retained Earnings Retained Earnings [Member] Operating lease liabilities, long-term Operating Lease, Liability, Noncurrent Revolving Credit Facility Revolving Credit Facility [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Statement of Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common shares outstanding (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Fair values and carrying values of long-term borrowings Fair Value, by Balance Sheet Grouping [Table Text Block] Debt-issuance costs Payments of Debt Issuance Costs Total diluted earnings (loss) per share of common stock (usd per share) Earnings Per Share, Diluted 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 Other current liabilities Disposal Group, Including Discontinued Operation, Other Liabilities, Current Discontinued operations (usd per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Adjustments to reconcile income from continuing operations to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Property, plant and equipment, net of accumulated depreciation of $5,003.5, $4,848.5 and $4,483.9, respectively Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Net sales Net sales Revenue from Contract with Customer, Excluding Assessed Tax 364-Day Credit Facility 364-Day Credit Facility [Member] 364-Day Credit Facility Merchandise inventories Disposal Group, Including Discontinued Operation, Inventory Current assets of discontinued operations Disposal Group, Including Discontinued Operation, Assets, Current Repurchase of stock Stock Repurchased During Period, Value Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Share Repurchase Program [Line Items] Share Repurchase Program [Line Items] Underlying Securities Award Underlying Securities Amount Fair Value Estimate of Fair Value Measurement [Member] Proceeds from stock issued pursuant to stock-based compensation plans Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised Reportable Segment Reportable Segment [Member] Reportable Segment Decrease in valuation allowance Asset Adjustments, Excluding Costs Of Disposal, Decrease In Valuation Allowance Asset Adjustments, Excluding Costs Of Disposal, Decrease In Valuation Allowance Other current liabilities Increase (Decrease) in Other Current Liabilities Segment Reporting [Table] Segment Reporting [Table] Operating lease liabilities, long-term Disposal Group, Including Discontinued Operation, Operating Lease, Liability, Noncurrent Disposal Group, Including Discontinued Operation, Operating Lease, Liability, Noncurrent Other current assets Other Assets, Current 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 Date Current Fiscal Year End Date Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Other liabilities Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent Repurchase of stock (in shares) Stock Repurchased During Period, Shares 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] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Stock-based compensation, net Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Impairments Asset, Impairment Loss Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Common stock, shares issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Basis of Presentation Business Description and Basis of Presentation [Text Block] Cost of sales Disposal Group, Including Discontinued Operation, Costs of Goods Sold Merchandise Fixed Price, Price Point One Merchandise Fixed Price, Price Point One Merchandise Fixed Price, Price Point One Equity Components [Axis] Equity Components [Axis] Product and Service [Domain] Product and Service [Domain] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Entity Interactive Data Current Entity Interactive Data Current Number of Stores Number of Stores Deferred income taxes, net Deferred Income Tax Liabilities, Net Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Small Business Entity Small Business Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Termination Date Trading Arrangement Termination Date Income from discontinued operations, net of tax Income (loss) from discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Other current liabilities Other Liabilities, Current Other assets Other Assets, Noncurrent Document Type Document Type 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 Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Remaining repurchase remaining authorized amount Share Repurchase Program, Remaining Authorized, Amount Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Proceeds from long-term debt Proceeds from Issuance of Long-Term Debt Local Phone Number Local Phone Number Canada CANADA Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Income from continuing operations before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Contingencies (Note 3) Commitments and Contingencies Total revenue Revenues Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Net cash used in investing activities of discontinued operations Cash Provided by (Used in) Investing Activity, Discontinued Operation Accounting Standards Update and Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] LIABILITIES AND SHAREHOLDERS’ EQUITY Liabilities and Equity [Abstract] Contractual obligation, year three Contractual Obligation, to be Paid, Year Three Outstanding payment obligations Supplier Finance Program, Obligation All Award Types Award Type [Domain] Proceeds from insurance recoveries Proceeds From Insurance Recoveries Proceeds From Insurance Recoveries Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Fair Value Measurements Fair Value Disclosures [Text Block] Repurchase of stock Stock Repurchased During Period, Excluding Excise Tax, Value Stock Repurchased During Period, Excluding Excise Tax, Value Supplemental disclosure of cash flow information(1): Supplemental Cash Flow Information [Abstract] PEO Name PEO Name Income (loss) from discontinued operations before income taxes Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Geographical [Axis] Geographical [Axis] Income taxes Income Tax Paid, before Refund Received Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Product Concentration Risk Product Concentration Risk [Member] Accounts payable Increase (Decrease) in Accounts Payable 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] Discontinued operations (usd per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Debt Instrument [Axis] Debt Instrument [Axis] Payments for fixed asset disposition Payments (Proceeds) For Productive Asset Disposition Payments (Proceeds) For Productive Asset Disposition Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Disposal Group Name [Axis] Disposal Group Name [Axis] Operating income Disposal Group, Including Discontinued Operation, Operating Income (Loss) Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Total basic earnings (loss) per share of common stock (usd per share) Earnings Per Share, Basic Payments for repurchase of stock Payments for Repurchase of Common Stock Total current assets Assets, Current Insider Trading Arrangements [Line Items] Long-term debt, net, excluding current portion Long-Term Debt, Excluding Current Maturities Award Type Award Type [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Transition services agreement, term Transition Services Agreement, Term Transition Services Agreement, Term Retained earnings Retained Earnings (Accumulated Deficit) Product and Service [Axis] Product and Service [Axis] Restricted cash Restricted Cash, Noncurrent Cash removed from net working capital before sale Cash Removed From Net Working Capital Before Sale Cash Removed From Net Working Capital Before Sale 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] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Cover [Abstract] Concentration risk percentage Concentration Risk, Percentage Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Equity Awards Adjustments Equity Awards Adjustments [Member] Damage from tornado Damage from Fire, Explosion or Other Hazard [Member] Total liabilities and shareholders’ equity Liabilities and Equity 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] Tariff refund, interest received Unusual Or Infrequent Item, Or Both, Tariffs, Interest Received On Refund Unusual Or Infrequent Item, Or Both, Tariffs, Interest Received On Refund Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Asset Class [Axis] Asset Class [Axis] Share Repurchase Program, Settled Subsequent To Period End Share Repurchase Program, Settled Subsequent To Period End [Member] Share Repurchase Program, Settled Subsequent To Period End Tabular List, Table Tabular List [Table Text Block] Additional paid-in capital Additional Paid in Capital Other liabilities Increase (Decrease) in Other Noncurrent Liabilities Other income, net Other Nonoperating Income (Expense) 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] Loss from classification to held for sale Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax Property, Plant and Equipment Property, Plant and Equipment [Member] Condensed Consolidated Balance Sheet Data: Segment Reporting, Other Disclosure [Abstract] Adjustment to Compensation: Adjustment to Compensation [Axis] Current portion of operating lease liabilities Disposal Group, Including Discontinued Operation, Operating Lease, Liability Disposal Group, Including Discontinued Operation, Operating Lease, Liability Share Repurchase Program [Axis] Share Repurchase Program [Axis] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activity Capital expenditures Payments to Acquire Productive Assets Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Contractual obligation, year one Contractual Obligation, to be Paid, Year One Depreciation and amortization Depreciation, Depletion and Amortization, Excluding Debt Discount And Issuance Costs Depreciation, Depletion and Amortization, Excluding Debt Discount And Issuance Costs Number of distribution centers Number Of Distribution Centers Number Of Distribution Centers Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Discontinued Operations and Disposal Groups [Abstract] 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 non-cash adjustments to income from continuing operations Other Noncash Income (Expense) Debt Instrument [Line Items] Debt Instrument [Line Items] Other current assets Increase (Decrease) in Other Current Assets Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Additional Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Other revenue Revenue Not from Contract with Customer Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and Cash Equivalent Other revenue Disposal Group, Including Discontinued Operation, Revenue Not From Contract With Customer Disposal Group, Including Discontinued Operation, Revenue Not From Contract With Customer Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Company Selected Measure Amount Company Selected Measure Amount Depreciation and amortization Depreciation, Depletion and Amortization Stock-based compensation, net (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Current assets: Assets, Current [Abstract] Insurance proceeds Insurance Recoveries Non-PEO NEO Non-PEO NEO [Member] Senior Notes Senior Notes [Member] Entity Address, Address Line One Entity Address, Address Line One Right-of-use assets obtained in exchange for new operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Provision for income taxes Provision for income taxes Income Tax Expense (Benefit) Cost of sales Cost of Product and Service Sold Award Timing Method Award Timing Method [Text Block] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Net change 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 Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Recent Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] 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] Goodwill Disposal Group, Including Discontinued Operation, Goodwill Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Number of combo stores converted to dollar tree stores Number Of Combo Stores Converted To Dollar Tree Stores Number Of Combo Stores Converted To Dollar Tree Stores Capital expenditures Disposal Group, Including Discontinued Operations, Payments To Acquire Productive Assets Disposal Group, Including Discontinued Operations, Payments To Acquire Productive Assets Interest income Disposal Group, Including Discontinued Operation, Interest Income Income from continuing operations Income from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent New Credit Facility New Credit Facility [Member] New Credit Facility Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Numerator: Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]