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Leases Lessee, Finance Leases [Text Block] Line of Credit Line of Credit [Member] Restatement Determination Date Restatement Determination Date Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Total contract assets Contract with Customer, Asset, after Allowance for Credit Loss Total Debt Long-Term Debt and Lease Obligation, Including Current Maturities Derivative Instrument [Axis] Derivative Instrument [Axis] Amendment Flag Amendment Flag Finance leases and other debt Finance Leases And Other [Member] Finance Leases And Other Net benefit from early termination lease Gain (Loss) on Termination of Lease Current liabilities Liabilities, Current [Abstract] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Developed technology Developed Technology Rights [Member] Amortization of intangible assets acquired Amortization Leases [Abstract] Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax [Abstract] Total long-term liabilities Liabilities, Noncurrent 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 Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Long-term liabilities Liabilities, Noncurrent [Abstract] Intangible assets, net of accumulated amortization of $780 and $781 Intangible Asset, Excluding Goodwill, after Accumulated Amortization Accrued expenses and other liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Derivative, notional amount Derivative, Notional Amount Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Other current assets 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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 Income Tax Disclosure [Abstract] Non-cash financing activities: Noncash Investing and Financing Items [Abstract] Credit Facility [Domain] Credit Facility [Domain] 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 Number of Shares Outstanding, Diluted Disaggregation of Revenue Disaggregation of Revenue [Line Items] Cross-currency swaps Cross Currency Interest Rate Contract [Member] 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 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Relationship [Axis] Hedging Relationship [Axis] Schedule of Revenue Disaggregated by Industry Sector Disaggregation of Revenue [Table Text Block] Effect of exchange rates on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Weighted-average shares outstanding used in computation of earnings (loss) per share Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Technology and consumer electronics Technology and Consumer Electronics [Member] Technology and Consumer Electronics Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Total equity Beginning balance Ending balance Equity, Including Portion Attributable to Noncontrolling Interest 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 Business Combination Business Combination [Line Items] Omnichannel retail E-Commerce, Omnichannel and Consumer Technology [Member] E-Commerce, Omnichannel and Consumer Technology Net periodic pension income 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 Five-Year Term Loan due 2027 Five Year Term Loan [Member] Five Year Term Loan Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) [Line Items] Schedule of Debt Fair Values Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] Exercise Price Award Exercise Price Schedule of Restructuring and Related Costs [Table] Restructuring Cost [Table] Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, 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Contingencies 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 Goodwill Goodwill [Table Text Block] Foreign currency option contracts Foreign Exchange Option [Member] Entity Central Index Key Entity Central Index Key All Adjustments to Compensation All Adjustments to Compensation [Member] 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 Direct operating expense Direct operating expense Direct Operating Costs Stockholders’ Equity Equity, Attributable to Parent [Abstract] Income Statement [Abstract] Document Transition Report Document Transition Report Unsecured notes due 2031 Unsecured Notes Due 2031 [Member] Unsecured Notes Due 2031 Consumer packaged goods Consumer Packaged Goods [Member] Consumer Packaged Goods Less: AOCIL attributable to NCI AOCI Attributable to Noncontrolling Interest [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Euro unsecured notes due 2030 Three Year Term Loan [Member] Three Year Term Loan Restructuring Plan [Domain] Restructuring Plan [Domain] Derivatives designated as net investment hedges: Designated as Hedging Instrument [Member] Long-term debt Finance Lease, Liability, Noncurrent Finance lease, right-of-use asset, statement of financial position Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Intangible Asset, Finite-Lived Intangible Asset, Finite-Lived [Table Text Block] City Area Code City Area Code AOCIL AOCIL attributable to GXO AOCI Attributable to Parent [Member] Document Information [Table] Document Information [Table] All Individuals All Individuals [Member] Schedule of Revenue Disaggregated by Geographical Area Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue [Table Text Block] Name Forgone Recovery, Individual Name Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Intangible Assets Intangible Asset [Text Block] Statement Statement [Line Items] Total long-term assets Assets, Noncurrent Total assets Assets Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan [Table] Schedule of Trade Receivables Sold Schedule Of Accounts Receivable Securitization And Factoring Programs [Table Text Block] Schedule Of Accounts Receivable Securitization And Factoring Programs Unsecured notes due 2026 Unsecured Notes Due 2026 [Member] Unsecured Notes Due 2026 Preferred stock, issued (in shares) 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Securities Amount Less: Comprehensive income attributable to NCI Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Fair Value Estimate of Fair Value Measurement [Member] Revenue Recognition Revenue from Contract with Customer [Text Block] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Unsecured notes due 2029 Unsecured Notes Due 2029 [Member] Unsecured Notes Due 2029 Segment Reporting Segment Reporting [Table] Finance lease, liability, current, statement of financial position Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Schedule of Lease Expenses and Supplemental Cash Flows Lease, Cost [Table Text Block] Other current assets Other Assets, Current Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Foreign currency gain (loss) on 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Securitization United Kingdom UNITED KINGDOM Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Derivative Contract [Domain] Derivative Contract [Domain] Impact of foreign exchange translation Goodwill, Foreign Currency Translation, Gain (Loss) Equity Awards Adjustments Equity Awards Adjustments [Member] Hedging Relationship [Domain] Hedging Relationship [Domain] Total liabilities and equity Liabilities and Equity Variable lease cost Variable Lease, Cost Employee Stock Option Share-Based Payment Arrangement, Option [Member] Amounts reclassified to net income Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax NCI Equity, Attributable to Noncontrolling Interest Segments Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Restructuring costs and other Charges incurred Restructuring Charges Tabular List, Table Tabular List [Table Text Block] Additional Paid-In Capital (“APIC”) Additional Paid in Capital Other income (expense), net Other Nonoperating Income (Expense) Equity Before NCI Parent [Member] 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] Long-term assets Assets, Noncurrent [Abstract] Fair Value Measurements and Financial Instruments Derivatives and Fair Value [Text Block] Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Derivatives, Fair Value Derivatives, Fair Value [Line Items] France FRANCE Preferred Stock, $0.01 par value per share; 10,000 shares authorized, 0 issued and outstanding Preferred Stock, Value, Issued Net Investment Hedges Accumulated Gain (Loss), Net Investment Hedging, Including Noncontrolling Interest [Member] Accumulated Gain (Loss), Net Investment Hedging, Including Noncontrolling Interest Adjustment to Compensation: Adjustment to Compensation [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Class of Stock [Domain] Class of Stock [Domain] Restructuring Cost and Reserve Restructuring Cost and Reserve [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Statement of Cash Flows [Abstract] Foreign Currency Translation Adjustments Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member] Foreign currency forward contracts Foreign Exchange Forward [Member] Hedging Designation [Axis] Hedging Designation [Axis] Corporate expenses Corporate Expenses Corporate Expenses Credit Facility [Axis] Credit Facility [Axis] Restructuring Costs and Other Restructuring and Related Activities Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Long-term debt Total Long-term debt Long-Term Debt and Lease Obligation Discontinued Operations and Disposal Groups [Abstract] Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Other Other Noncash Income (Expense) Debt Instrument Debt Instrument [Line Items] EUR unsecured Notes Due 2030 EUR Unsecured Notes Due 2030 [Member] EUR Unsecured Notes Due 2030 Selling, general and administrative expense Selling, General and Administrative Expense, Adjusted Selling, General and Administrative Expense, Adjusted Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Retirement Plan Type [Domain] Retirement Plan Type [Domain] APIC Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Goodwill impairment Goodwill, Impairment Loss Name Trading Arrangement, Individual Name Cross-currency swaps Currency Swap [Member] Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Company Selected Measure Amount Company Selected Measure Amount Industrial and manufacturing Industrial And Manufacturing [Member] Industrial And Manufacturing Derivatives not designated as hedge: Not Designated as Hedging Instrument [Member] Depreciation and amortization expense Depreciation and amortization expense Depreciation, Depletion and Amortization Net income (loss) Net income (loss) Net income (loss) Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Finance leases Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Current assets Assets, Current [Abstract] Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Impairment of intangible assets Intangible Asset, Finite-Lived, Impairment Loss Operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Income tax expense Income tax expense Income tax expense Income Tax Expense (Benefit) Fair value hedges Fair Value Hedging [Member] Award Timing Method Award Timing Method [Text Block] Other Product and Service, Other [Member] Net decrease in cash, restricted cash and cash equivalents 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] Total finance lease cost Finance Lease, Cost Finance Lease, Cost Amortization of net loss Defined Benefit Plan, Amortization of Gain (Loss) Net income (loss) attributable to GXO Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Balance Sheet Location [Axis] Location, Statement of Financial Position, Balance [Axis] Statement [Table] Statement [Table] Proceeds from sale of property and equipment Proceeds from Sale of Property, Plant, and Equipment Restatement Determination Date: Restatement Determination Date [Axis] Proceeds from exercise of stock options Proceeds from Stock Options Exercised Schedule of Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Contract with Customer, Contract Asset, Contract Liability, and Receivable Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Derivative asset, fair value Derivative Asset, Subject to Master Netting Arrangement, before Offset Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivative Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax Unrealized (gain) loss on foreign currency contracts Unrealized Gain (Loss), Foreign Currency Transaction, before Tax Net borrowings under revolving credit facilities Proceeds from (Repayments of) Lines of Credit Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]