Entity tax identification number Entity Tax Identification Number Investments, at fair value EBP, Investment, Fair Value Participant loan, basis spread on variable rate EBP, Participant Loan, Basis Spread on Variable Rate EBP, Participant Loan, Basis Spread on Variable Rate Maximum Maximum [Member] Legal Entity [Axis] Legal Entity [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] EBP, Description of Plan [Table] EBP, Description of Plan [Table] Mutual funds Mutual Fund [Member] Subsequent Event Subsequent Event [Member] 4 years of continuous service EBP, Four Years of Continuous Service [Member] EBP, Four Years of Continuous Service EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] Participant contribution, pretax, maximum annual compensation to total compensation, percentage EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage Profit sharing contribution, maximum guild employee up to social security wage base, percentage EBP, Profit Sharing Contribution, Maximum Guild Employee Up To Social Security Wage Base, Percentage EBP, Profit Sharing Contribution, Maximum Guild Employee Up To Social Security Wage Base, Percentage Short-term investment fund EBP, Short-Term Investment Fund [Member] EBP, Short-Term Investment Fund Self-Directed Accounts EBP, Self-Directed Brokerage Account [Member] Total deductions Total deductions EBP, Change in Net Asset Available for Benefit, Decrease Note receivable from participant account, maximum borrowing amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Fair Value Measurements EBP, Investment, Fair Value and NAV [Text Block] Note receivable from participant account, minimum borrowing amount EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Employer non-elective contribution, percentage EBP, Employer Non-Elective Contribution, Percentage EBP, Employer Non-Elective Contribution, Percentage Investments, at fair value EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Subsequent Event Type [Domain] Subsequent Event Type [Domain] Money market funds Money Market Funds [Member] EBP, Nonconsolidated, Plan Interest in Master Trust EBP, Nonconsolidated, Plan Interest in Master Trust [Member] Level 1 Fair Value, Inputs, Level 1 [Member] 3 years of continuous service EBP, Three Years of Continuous Service [Member] EBP, Three Years of Continuous Service EBP, Reconciliation of Financial Statement to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] EBP, Investment, Fair Value and NAV [Abstract] Profit sharing contribution, maximum guild employee in excess of social security wage base, percentage EBP, Profit Sharing Contribution, Maximum Guild Employee In Excess Of Social Security Wage Base, Percentage EBP, Profit Sharing Contribution, Maximum Guild Employee In Excess Of Social Security Wage Base, Percentage Total assets EBP, Asset Assets EBP, Asset [Abstract] Statistical Measurement [Axis] Statistical Measurement [Axis] Additions to net assets attributed to: EBP, Change in Net Asset Available for Benefit, Increase [Abstract] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Total additions per Form 5500 EBP, Form 5500 Caption, Total Additions EBP, Form 5500 Caption, Total Additions Payment of Benefits EBP, Payment to Participant [Policy Text Block] EBP, Master Trust [Line Items] EBP, Master Trust [Line Items] EBP, Vesting [Domain] EBP, Vesting [Domain] EBP, Vesting [Domain] Participant distribution minimum age EBP, Participant Distribution Minimum Age EBP, Participant Distribution Minimum Age Amendment Flag Amendment Flag Participant loan, minimum term EBP, Participant Loan, Minimum Term EBP, Participant Loan, Minimum Term Deemed distributions of participant loans EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Deemed Distribution Basis of Accounting EBP, Basis of Accounting [Policy Text Block] EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] Due from broker on pending trades EBP, Investment Sale, Receivable Investment, interest rate EBP, Investment, Interest Rate 5 years of continuous service EBP, Five Years of Continuous Service [Member] EBP, Five Years of Continuous Service EBP, Description of Plan and Accounting Change [Abstract] EBP, Investment, Fair Value and NAV EBP, Investment, Fair Value and NAV [Table Text Block] Sponsor Sponsor [Member] Sponsor Profit sharing contribution, maximum non-guild employee, percentage EBP, Profit Sharing Contribution, Maximum Non-Guild Employee, Percentage EBP, Profit Sharing Contribution, Maximum Non-Guild Employee, Percentage Participant loan, maximum term EBP, Participant Loan, Maximum Term EBP, Participant Loan, Maximum Term Investments [Domain] Investments [Domain] Common stock EBP, Nonemployer, Common Stock [Member] EBP, Master Trust [Abstract] Investments, at contract value EBP, Investment, Plan Interest in Master Trust, Contract Value Use of Estimates EBP, Use of Estimate [Policy Text Block] EBP, Related Party and Party-in-Interest [Domain] EBP, Related Party and Party-in-Interest [Domain] Schedule H, Line 4i – Schedule of Assets (Held At End of Year) EBP, Schedule of Asset Held for Investment [Text Block] Cover [Abstract] Risks and Uncertainties EBP, Risk and Uncertainty [Text Block] EBP, Vesting Schedule EBP, Vesting Schedule [Table Text Block] EBP, Vesting Schedule Fully benefit-responsive investment contracts: EBP, Synthetic Investment Contract [Member] EBP, Related Party and Party-in-Interest [Axis] EBP, Related Party and Party-in-Interest [Axis] Minimum Minimum [Member] Investment Type [Axis] Investment Type [Axis] Interest income on notes receivable from participants EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Total contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution Employee EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover Prudential GA 62450 Prudential GA 62450 [Member] Prudential GA 62450 Self-directed account available mutual fund options, count EBP, Self-Directed Account Available Mutual Fund Options, Count EBP, Self-Directed Account Available Mutual Fund Options, Count Net appreciation in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Dividend and interest income EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] Plan number EBP, Plan Number EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] Plan Description EBP, Description of Plan [Text Block] EBP 002 EBP 002 [Member] EBP 002 Participant contribution, automatic deferral rate, annual increase EBP, Participant Contribution, Automatic Deferral Rate, Annual Increase EBP, Participant Contribution, Automatic Deferral Rate, Annual Increase EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] Self-Directed Accounts EBP, Self-Directed Brokerage Accounts, Fair Value EBP, Self-Directed Brokerage Accounts, Fair Value Adjustments from contract value to fair value for fully benefit-responsive contracts EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Contract Value to Current Value Adjustment EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] Contributions EBP, Contribution [Policy Text Block] EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Domain] EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Domain] Fixed income fund Fixed Income Funds [Member] S&P Global Inc. common stock EBP, Employer, Common Stock [Member] EBP, Schedule of Asset Held for Investment [Abstract] EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] Total additions Total additions EBP, Change in Net Asset Available for Benefit, Increase Net investment income: EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Investment, Identifier [Axis] Investment, Identifier [Axis] Administrative expenses Administrative expenses EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Investments, at contract value EBP, Investment, Contract Value Total investments EBP, Investment, Fair Value, And Plan Interest In Master Trust, Contract Value EBP, Investment, Fair Value, And Plan Interest In Master Trust, Contract Value Document Information [Line Items] Document Information [Line Items] EBP, Risk and Uncertainty [Line Items] EBP, Risk and Uncertainty [Line Items] Participant after-tax contribution, maximum highly compensated guild employee, percentage EBP, Participant After-Tax Contribution, Maximum Highly Compensated Guild Employee, Percentage EBP, Participant After-Tax Contribution, Maximum Highly Compensated Guild Employee, Percentage EBP, Risk and Uncertainty [Table] EBP, Risk and Uncertainty [Table] Investments EBP, Master Trust [Text Block] Employer contribution, participant compensation matched, percentage EBP, Employer Contribution, Participant Compensation Matched, Percentage EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Level 2 Fair Value, Inputs, Level 2 [Member] Employer EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash Subsequent Event Type [Axis] Subsequent Event Type [Axis] EBP, Tax Status [Table] EBP, Tax Status [Table] Net increase in net assets EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Related-Party Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] EBP, Related Party and Party-in-Interest Transactions [Abstract] Receivable EBP, Receivable EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] Stock index funds EBP, Stock Index Funds [Member] EBP, Stock Index Funds Employer contributions receivable EBP, Employer Contribution, Receivable Participant contribution, automatic, deferral rate EBP, Participant Contribution, Automatic, Deferral Rate Benefit payments and withdrawals EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Investments in S&P Global Inc. Savings Plans Master Trust Fund, at fair value Assets at Master Trust Level EBP, Investment, Plan Interest in Master Trust, Fair Value Current Value EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Adjustment from contract value to fair value for fully-benefit responsive investment contracts at December 31, 2025 EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Adjustment from Contract Value to Fair Value, Current Period EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Adjustment from Contract Value to Fair Value, Current Period Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] EBP, Tax Status [Abstract] Common stock funds EBP, Employer, Common Stock Fund [Member] EBP, Reconciliation of Financial Statement to Form 5500 [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Table] Participant short-term incentive compensation, automatic deferral rate EBP, Participant Short-Term Incentive Compensation, Automatic Deferral Rate EBP, Participant Short-Term Incentive Compensation, Automatic Deferral Rate EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] Total deductions per Form 5500 EBP, Form 5500 Caption, Benefit Payment and Payments to Provide Benefits Deemed distributions of participant loans at December 31, 2024 EBP, Reconciliation to Form 5500, Payment to Participant, Prior Period, Decrease from Deemed Distribution Target date retirement funds EBP, Target Date Retirement Funds [Member] EBP, Target Date Retirement Funds Differences between Financial Statements and Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Notes receivable from participants EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Investment Valuation and Investment Income EBP, Investment [Policy Text Block] Participant after-tax contribution, maximum highly compensated non-guild employee, percentage EBP, Participant After-Tax Contribution, Maximum Highly Compensated Non-Guild Employee, Percentage EBP, Participant After-Tax Contribution, Maximum Highly Compensated Non-Guild Employee, Percentage EBP, Master Trust [Table] EBP, Master Trust [Table] Mass Mutual MM30173 Mass Mutual MM30173 [Member] Mass Mutual MM30173 Total Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Document Type Document Type Vested Percentage EBP, Profit Sharing Contribution, Vesting Percentage EBP, Profit Sharing Contribution, Vesting Percentage Entity Central Index Key Entity Central Index Key Asset held for investment, participant loan, interest rate EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] Common collective trust funds Common Collective Trust [Member] Net assets available for benefits: EBP, Net Asset Available for Benefit [Abstract] EBP, Risk and Uncertainty [Abstract] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] EBP, Subsequent Event [Table] EBP, Subsequent Event [Table] Deductions from net assets attributed to: EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Forfeited nonvested account, decrease for employer contribution EBP, Forfeited Nonvested Account, Decrease from Employer Contribution Notes receivable from participants EBP, Note Receivable from Participant 2 years of continuous service EBP, Two Years of Continuous Service [Member] EBP, Two Years of Continuous Service Nonconsolidated, Master Trust EBP, Nonconsolidated, Master Trust [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Summary of Significant Accounting Policies EBP, Summary of Accounting Policy [Text Block] Entity Registrant Name Entity Registrant Name Schedule of Master Trust Net Assets EBP, Master Trust [Table Text Block] EBP, Subsequent Event [Abstract] Subsequent Events EBP, Subsequent Event [Text Block] Federal Income Tax Status EBP, Tax Status [Text Block] Note receivable from participant account, maximum borrowing to total account percentage EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Real estate fund Real Estate Funds [Member] EBP, Subsequent Event [Line Items] EBP, Subsequent Event [Line Items] Document Information [Table] Document Information [Table] Notes Receivable from Participants EBP, Note Receivable from Participant [Policy Text Block] Total net investment income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment Adjustment from contract value to fair value for fully benefit-responsive investment contracts at December 31, 2024 EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Adjustment from Contract Value to Fair Value, Prior Period EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Adjustment from Contract Value to Fair Value, Prior Period EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Axis] EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Axis] EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Level 3 Fair Value, Inputs, Level 3 [Member] Net assets available for benefits Beginning of year End of year Net assets available for benefits EBP, Net Asset Available for Benefit Entity [Domain] Entity [Domain] Contributions: EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Forfeited nonvested account EBP, Forfeited Nonvested Account Employer contribution, matching, percentage EBP, Employer Contribution, Matching Percentage Net assets available for benefits per Form 5500 EBP, Form 5500 Caption, Net Assets RGA Reinsurance 00136 RGA Reinsurance 00136 [Member] RGA Reinsurance 00136 Fair Value Measured at Net Asset Value Per Share Fair Value Measured at Net Asset Value Per Share [Member] EBP, Vesting [Axis] EBP, Vesting [Axis] EBP, Vesting EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] Interest in master trust, percentage EBP, Interest in Master Trust, Percentage Participant investment allocation increment, percentage EBP, Participant Investment Allocation Increment, Percentage EBP, Participant Investment Allocation Increment, Percentage EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items] Deemed distributions of participant loans at December 31, 2025 EBP, Reconciliation to Form 5500, Payment to Participant, Current Period, Increase from Deemed Distribution