EBP 002 EBP 002 [Member] EBP 002 Statistical Measurement [Domain] Statistical Measurement [Domain] Related Party and Party in Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] Document Information [Line Items] Document Information [Line Items] GSK Stock Fund EBP, Employer, Common Stock Fund [Member] Maximum borrowing, amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Participant contributions EBP, Participant Contribution, Receivable Stable Value Fund Stable Value Fund [Member] Stable Value Fund EBP, Description of Plan and Accounting Change [Abstract] Investment Type [Axis] Investment Type [Axis] Rollover EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Maximum borrowing, to total account, percentage EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Number of hours of credited service EBP, Employer Contribution, Number Of Hours Of Credited Service EBP, Employer Contribution, Number Of Hours Of Credited Service Administrative expense paid EBP, Administrative Expense Paid EBP, Administrative Expense Paid Tax Status EBP, Tax Status [Text Block] Catch-up contributions eligibility, age EBP, Employee Contribution, Catch-Up Contributions Eligibility, Age EBP, Employee Contribution, Catch-Up Contributions Eligibility, Age BlackRock Russell 2500 Alpha Tilts – Fund F BlackRock Russell 2500 Alpha Tilts – Fund F [Member] BlackRock Russell 2500 Alpha Tilts – Fund F Total liabilities EBP, Liability Amounts allocated to withdrawing participants in 2025 Amounts allocated to withdrawing participants at December 31, 2025 EBP, Reconciliation to Form 5500, Payment to Participant, Increase from Allocation to Withdrawing Participant, Not yet Paid EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] Primary residence loan, maximum borrowing term EBP, Note Receivable From Participant, Primary Residence Loan, Maximum Borrowing Term EBP, Note Receivable From Participant, Primary Residence Loan, Maximum Borrowing Term Default investment, target retirement age EBP, Default Investment, Target Retirement Age EBP, Default Investment, Target Retirement Age GSK investment, as percent of total investments EBP, Risk and Uncertainty, Concentration of Investment at Fair Value to Net Assets, Percentage EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] Participant loans EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Net assets available for benefits per Form 5500, Schedule H EBP, Form 5500 Caption, Net Assets Fair Value Measurements EBP, Investment, Fair Value and NAV [Text Block] State Street Global Advisors Funds State Street Global Advisor Funds [Member] State Street Global Advisor Funds Investment acquired EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Cost EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] Total contributions Contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution Net increase in net assets available for benefits per Form 5500, Schedule H EBP, Form 5500 Caption, Net Income (Loss) Minimum borrowing, amount EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Payment of benefits, second threshold EBP, Payment of Benefits, Second Threshold EBP, Payment of Benefits, Second Threshold Subsequent Event Subsequent Event [Member] Maximum period of annual distributions EBP, Maximum Period of Annual Distributions EBP, Maximum Period of Annual Distributions Accrued investment management fees EBP, Accrued Expense Money market fund Money Market Funds [Member] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Fully Benefit-Responsive Investment Contract [Table] EBP, Fully Benefit-Responsive Investment Contract [Table] EBP, Risk and Uncertainty [Table] EBP, Risk and Uncertainty [Table] Benefits paid to participants Benefits paid to participants per the financial statements EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Employer contributions EBP, Employer Contribution, Receivable Fair Value of Investment EBP, Investment, Fair Value Investment management services fees paid EBP, Investment Management Services Fees Paid EBP, Investment Management Services Fees Paid Current year deemed distributions EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Current Period, Decrease from Deemed Distribution Benefits Paid to Participants EBP, Payment to Participant [Policy Text Block] Net assets available for benefits Beginning of year End of year Net assets available for benefits per the financial statements EBP, Net Asset Available for Benefit EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] Total investments EBP, Investment, Excluding Plan Interest in Master Trust, Fair and Contract Value EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Fully Benefit-Responsive Investment Contract [Line Items] Total assets EBP, Asset EBP, Reconciliation of Financial Statement to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] Amounts allocated to withdrawing participants in 2024 Amounts allocated to withdrawing participants at December 31, 2024 EBP, Reconciliation to Form 5500, Payment to Participant, Decrease from Allocation to Withdrawing Participant, Paid Vanguard Target Retirement Trust Select Vanguard Target Retirement Trust Select [Member] Vanguard Target Retirement Trust Select Employer core contribution, percentage EBP, Employer Core Contribution, Percentage EBP, Employer Core Contribution, Percentage EBP, Reconciliation of Financial Statement to Form 5500 [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Table] General loan, maximum borrowing term EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term Benefits paid to participants per Form 5500, Schedule H (2e, 2g) EBP, Form 5500 Caption, Benefit Payment and Payments to Provide Benefits Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] EBP, Tax Status [Abstract] Net increase in net assets Net increase in net assets available for benefits per financial statements EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Cover [Abstract] EBP, Other Related Party and Party-in-Interest EBP, Other Related Party and Party-in-Interest [Member] MetWest Total Return Bond Fund (CIT) Class C MetWest Total Return Bond Fund (CIT) Class C [Member] MetWest Total Return Bond Fund (CIT) Class C Maximum Maximum [Member] Employer EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash EBP, Risk and Uncertainty [Line Items] EBP, Risk and Uncertainty [Line Items] Assets EBP, Asset [Abstract] Benchmark threshold percentage EBP, Risk and Uncertainty, Concentration of Investment, Benchmark Threshold Percentage Minimum Minimum [Member] Subsequent Event Type [Domain] Subsequent Event Type [Domain] EBP, Schedule of Asset Held for Investment [Abstract] Dividend income EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment Reconciliation to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Entity [Domain] Entity [Domain] Investment, Identifier [Axis] Investment, Identifier [Axis] EBP, Risk and Uncertainty EBP, Risk and Uncertainty [Table Text Block] EBP, Investment, Fair Value and NAV [Abstract] Matching percentage EBP, Employer Contribution, Matching Percentage Basis of Presentation EBP, Basis of Accounting [Policy Text Block] EBP, Subsequent Event [Line Items] EBP, Subsequent Event [Line Items] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Amounts allocated to withdrawing participants EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Allocation to Withdrawing Participant, Not yet Paid Mutual funds Mutual Fund [Member] EBP, Description of Plan [Table] EBP, Description of Plan [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] Investment Valuation and Income Recognition EBP, Investment [Policy Text Block] Fully benefit responsive investment contracts at contract value EBP, Investment, Excluding Plan Interest in Master Trust, Contract Value Dividends and interest EBP, Investment Income, Receivable Amendment Flag Amendment Flag Administrative expenses and investment management fees EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Common collective trust Common Collective Trust [Member] Interest income EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Investment Net asset value Fair Value Measured at Net Asset Value Per Share [Member] Prior year deemed distributions EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Prior Period, Increase from Deemed Distribution EBP, Investment, Fair Value and NAV EBP, Investment, Fair Value and NAV [Table Text Block] Total deductions EBP, Change in Net Asset Available for Benefit, Decrease Total Investments EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Plan Termination EBP, Plan Termination [Text Block] EBP, Statement of Change in Net Asset Available for Benefit [Abstract] EBP, Subsequent Event [Table] EBP, Subsequent Event [Table] Investment sold EBP, Investment Sold, Excluding Plan Interest in Master Trust, Selling Price EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Custody fees paid EBP, Custody Fees Paid EBP, Custody Fees Paid Redemption Notice Period EBP, Fair Value, Investment, NAV, Redemption, Notice Period Synthetic Guaranteed Investment Contracts Synthetic Guaranteed Investment Contracts [Text Block] Synthetic Guaranteed Investment Contracts EBP, Statement of Net Asset Available for Benefit [Abstract] Deemed distributions adjustment EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Deemed Distribution Description of the Plan EBP, Description of Plan [Text Block] Summary of Significant Accounting Policies and Recent Accounting Pronouncements EBP, Summary of Accounting Policy [Text Block] Participant EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution Total additions EBP, Change in Net Asset Available for Benefit, Increase EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items] Entity Central Index Key Entity Central Index Key Number of funds EBP, Number Of Funds EBP, Number Of Funds Interest rate EBP, Asset Held for Investment, Participant Loan, Interest Rate Investments at fair value EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Legal Entity [Axis] Legal Entity [Axis] Entity Tax Identification number Entity Tax Identification Number BlackRock Government Short Term Investment Fund BlackRock Government Short Term Investment Fund [Member] BlackRock Government Short Term Investment Fund Total investment income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] Plan number EBP, Plan Number EBP, Schedule of Allocation, Income and Change in Plan Equity [Line Items] EBP, Schedule of Allocation, Income and Change in Plan Equity [Line Items] Participant loan, basis spread on variable rate EBP, Participant Loan, Basis Spread On Variable Rate EBP, Participant Loan, Basis Spread On Variable Rate Contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Vanguard Retirement Savings Trust IV Vanguard Retirement Savings Trust IV [Member] Vanguard Retirement Savings Trust IV Document Type Document Type GSK ADRs EBP, Employer, ADRs [Member] EBP, Employer, ADRs Level 3 Fair Value, Inputs, Level 3 [Member] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] Use of Estimates EBP, Use of Estimate [Policy Text Block] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Synthetic GICs EBP, Synthetic Investment Contract [Member] EBP, Fully Benefit-Responsive Investment Contract [Abstract] Percentage of assets, threshold EBP, Fair Value, Investment, NAV, Redemption, Percentage of Assets, Threshold EBP, Fair Value, Investment, NAV, Redemption, Percentage of Assets, Threshold Statistical Measurement [Axis] Statistical Measurement [Axis] Deductions from net assets attributed to EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Receivables for securities sold EBP, Investment Sale, Receivable Mutual fund and Money market fund Mutual Fund And Money Market Fund [Member] Mutual Fund And Money Market Fund Participant loan, processing fee EBP, Participant Loan, Processing Fee EBP, Participant Loan, Processing Fee Minimum withdrawing age for pre-tax and Roth contributions EBP, Pre-Tax And Roth Contributions, Minimum Withdrawing Age EBP, Pre-Tax And Roth Contributions, Minimum Withdrawing Age Annual compensation to total compensation, percentage EBP, Participant Contribution, Pretax, Annual Compensation to Total Compensation, Percentage EBP, Participant Contribution, Pretax, Annual Compensation to Total Compensation, Percentage Participant loans receivable EBP, Note Receivable from Participant Level 2 Fair Value, Inputs, Level 2 [Member] Benefits processing paid EBP, Benefits Processing Paid EBP, Benefits Processing Paid EBP, Related Party and Party-in-Interest [Axis] EBP, Related Party and Party-in-Interest [Axis] Schedule H, Line 4i - Schedule of Assets (Held at End of Year) EBP, Schedule of Asset Held for Investment [Table Text Block] Additions to net assets attributed to EBP, Change in Net Asset Available for Benefit, Increase [Abstract] EBP, Related Party and Party-in-Interest [Domain] EBP, Related Party and Party-in-Interest [Domain] Required minimum distributions, minimum age EBP, Required Minimum Distributions, Minimum Age EBP, Required Minimum Distributions, Minimum Age Net appreciation in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Number of synthetic contracts included in the Plan EBP, Synthetic Guaranteed Investment Contracts, Number of Synthetic Contracts Included in the Plan EBP, Synthetic Guaranteed Investment Contracts, Number of Synthetic Contracts Included in the Plan Maximum number of annual partial distributions EBP, Maximum Number of Annual Partial Distributions EBP, Maximum Number of Annual Partial Distributions EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] Number of employees terminated EBP, Business Combination, Number of Employees Terminated EBP, Business Combination, Number of Employees Terminated General loan, minimum borrowing term EBP, Note Receivable From Participant, General Loan, Minimum Borrowing Term EBP, Note Receivable From Participant, General Loan, Minimum Borrowing Term Investments [Domain] Investments [Domain] EBP, Subsequent Event [Abstract] EBP, Schedule of Allocation, Income and Change in Plan Equity [Table] EBP, Schedule of Allocation, Income and Change in Plan Equity [Table] Document Information [Table] Document Information [Table] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] Level 1 Fair Value, Inputs, Level 1 [Member] Entity Registrant Name Entity Registrant Name Subsequent Events EBP, Subsequent Event [Text Block] Investment income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Common stock Common Stock [Member] EBP, Tax Status [Table] EBP, Tax Status [Table] Liabilities EBP, Liability [Abstract] Receivables EBP, Receivable [Abstract] Total Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Total receivables EBP, Receivable Percentage of underlying assets owned by the Plan EBP, Synthetic Guaranteed Investment Contracts, Percentage of Underlying Assets Owned by the Plan EBP, Synthetic Guaranteed Investment Contracts, Percentage of Underlying Assets Owned by the Plan Participant compensation matched, percentage EBP, Employer Contribution, Participant Compensation Matched, Percentage Risks and Uncertainties EBP, Risk and Uncertainty [Text Block] Payment of benefits, first threshold EBP, Payment of Benefits, First Threshold EBP, Payment of Benefits, First Threshold Payables for securities purchased EBP, Liability for Investment Purchase