$SPGI
S&P Global Inc. Stock $spgi

$spgi Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-K Financial Statement

#000006404021000063 Filed on February 09, 2021

Income Statement

Concept	2020 Q4	2019 Q4	2019 Q3
Revenue	$1.867B	$1.735B	$1.689B
YoY Change	7.61%	12.96%	9.25%
Cost Of Revenue	$559.0M	$464.0M	$480.0M
YoY Change	20.47%	12.9%	17.07%
Gross Profit	$1.308B	$1.271B	$1.209B
YoY Change	2.91%	12.88%	6.43%
Gross Profit Margin	70.06%	73.26%	71.58%
Selling, General & Admin	$393.0M	$327.0M	$318.0M
YoY Change	20.18%	-4.39%	-16.09%
% of Gross Profit	30.05%	25.73%	26.3%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$52.00M	$51.00M	$20.00M
YoY Change	1.96%	-7.27%	0.0%
% of Gross Profit	3.98%	4.01%	1.65%
Operating Expenses	$445.0M	$378.0M	$318.0M
YoY Change	17.72%	-4.79%	-16.09%
Operating Profit	$656.0M	$818.0M	$891.0M
YoY Change	-19.8%	16.19%	26.56%
Interest Expense	-$25.00M	-$96.00M	-$48.00M
YoY Change	-73.96%	146.15%	20.0%
% of Operating Profit	-3.81%	-11.74%	-5.39%
Other Income/Expense, Net	$8.000M	$9.000M	-$8.000M
YoY Change	-11.11%	50.0%	-233.33%
Pretax Income	$640.0M	$731.0M	$851.0M
YoY Change	-12.45%	8.94%	26.64%
Income Tax	$135.0M	$145.0M	$189.0M
% Of Pretax Income	21.09%	19.84%	22.21%
Net Earnings	$454.0M	$541.0M	$617.0M
YoY Change	-16.08%	5.66%	24.65%
Net Earnings / Revenue	24.32%	31.18%	36.53%
Basic Earnings Per Share	$1.89	$2.22	$2.52
Diluted Earnings Per Share	$1.88	$2.20	$2.50
COMMON SHARES
Basic Shares Outstanding	240.6M shares	244.4M shares	245.0M shares
Diluted Shares Outstanding			246.5M shares

Balance Sheet

Concept	2020 Q4	2019 Q4	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$4.117B	$2.894B	$1.996B
YoY Change	42.26%	49.56%	-7.51%
Cash & Equivalents	$4.100B	$2.900B	$1.996B
Short-Term Investments	$9.000M	$28.00M
Other Short-Term Assets	$278.0M	$221.0M	$240.0M
YoY Change	25.79%	36.42%	3.0%
Inventory
Prepaid Expenses
Receivables	$1.593B	$1.577B	$1.486B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$5.988B	$4.712B	$3.722B
YoY Change	27.08%	31.36%	2.59%
LONG-TERM ASSETS
Property, Plant & Equipment	$284.0M	$320.0M	$298.0M
YoY Change	-11.25%	18.52%	8.36%
Goodwill	$3.735B	$3.575B	$3.515B
YoY Change	4.48%	1.13%	-0.82%
Intangibles	$1.352B	$1.424B	$1.427B
YoY Change	-5.06%	-6.56%	0.49%
Long-Term Investments
YoY Change
Other Assets	$387.0M	$641.0M	$566.0M
YoY Change	-39.63%	22.1%	9.69%
Total Long-Term Assets	$6.549B	$6.636B	$6.466B
YoY Change	-1.31%	13.36%	12.35%
TOTAL ASSETS
Total Short-Term Assets	$5.988B	$4.712B	$3.722B
Total Long-Term Assets	$6.549B	$6.636B	$6.466B
Total Assets	$12.54B	$11.35B	$10.19B
YoY Change	10.48%	20.2%	8.58%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$233.0M	$190.0M	$188.0M
YoY Change	22.63%	-9.95%	-3.09%
Accrued Expenses	$651.0M	$558.0M	$439.0M
YoY Change	16.67%	57.63%	43.0%
Deferred Revenue	$2.168B	$1.928B	$1.614B
YoY Change	12.45%	17.49%	2.41%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due			$699.0M
YoY Change
Total Short-Term Liabilities	$3.587B	$3.093B	$3.373B
YoY Change	15.97%	17.6%	34.01%
LONG-TERM LIABILITIES
Long-Term Debt	$4.110B	$3.948B	$2.966B
YoY Change	4.1%	7.81%	-18.98%
Other Long-Term Liabilities	$653.0M	$624.0M	$581.0M
YoY Change	4.65%	1.3%	8.19%
Total Long-Term Liabilities	$4.763B	$4.572B	$3.547B
YoY Change	4.18%	6.87%	-15.51%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.587B	$3.093B	$3.373B
Total Long-Term Liabilities	$4.763B	$4.572B	$3.547B
Total Liabilities	$9.185B	$8.544B	$7.761B
YoY Change	7.5%	19.71%	11.83%
SHAREHOLDERS EQUITY
Retained Earnings	$13.37B	$12.21B	$12.05B
YoY Change	9.52%	8.16%	9.55%
Common Stock	$1.240B	$1.197B	$1.129B
YoY Change	3.59%	6.21%	-13.75%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$13.46B	$12.30B	$12.15B
YoY Change	9.45%	11.39%	13.54%
Treasury Stock Shares	53.00M shares	50.00M shares
Shareholders Equity	$509.0M	$479.0M	$346.0M
YoY Change
Total Liabilities & Shareholders Equity	$12.54B	$11.35B	$10.19B
YoY Change	10.48%	20.2%	8.58%

Cashflow Statement

Concept	2020 Q4	2019 Q4	2019 Q3
OPERATING ACTIVITIES
Net Income	$454.0M	$541.0M	$617.0M
YoY Change	-16.08%	5.66%	24.65%
Depreciation, Depletion And Amortization	$52.00M	$51.00M	$20.00M
YoY Change	1.96%	-7.27%	0.0%
Cash From Operating Activities	$1.141B	$1.004B	$762.0M
YoY Change	13.65%	51.43%	53.01%
INVESTING ACTIVITIES
Capital Expenditures	-$33.00M	-$38.00M	-$31.00M
YoY Change	-13.16%	52.0%	10.71%
Acquisitions
YoY Change
Other Investing Activities	-$3.000M	-$73.00M	$64.00M
YoY Change	-95.89%	-48.59%	-592.31%
Cash From Investing Activities	-$36.00M	-$111.0M	$33.00M
YoY Change	-67.57%	-33.53%	-180.49%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$3.000M
YoY Change		-50.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-216.0M	-67.00M	-676.0M
YoY Change	222.39%	-90.55%	286.29%
NET CHANGE
Cash From Operating Activities	1.141B	1.004B	762.0M
Cash From Investing Activities	-36.00M	-111.0M	33.00M
Cash From Financing Activities	-216.0M	-67.00M	-676.0M
Net Change In Cash	889.0M	826.0M	119.0M
YoY Change	7.63%	-487.79%	-57.8%
FREE CASH FLOW
Cash From Operating Activities	$1.141B	$1.004B	$762.0M
Capital Expenditures	-$33.00M	-$38.00M	-$31.00M
Free Cash Flow	$1.174B	$1.042B	$793.0M
YoY Change	12.67%	51.45%	50.76%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0000064040
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilitiesCurrent
CY2019Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilitiesCurrent
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	1-1023
CY2020	dei	Entity Registrant Name EntityRegistrantName	S&P Global Inc.
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	NY
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	13-1026995
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	55 Water Street
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	New York
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	10041
CY2020	dei	City Area Code CityAreaCode	212
CY2020	dei	Local Phone Number LocalPhoneNumber	438-1000
CY2020	dei	Security12b Title Security12bTitle	Common Stock — $1 par value
CY2020	dei	Trading Symbol TradingSymbol	SPGI
CY2020	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2020Q2	dei	Entity Public Float EntityPublicFloat	79400000000	USD
CY2021Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	240700000	shares
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7442000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6699000000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6258000000	USD
CY2020	us-gaap	Cost Of Revenue CostOfRevenue	2092000000	USD
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CY2018	us-gaap	Depreciation Depreciation	84000000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	123000000	USD
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CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	16000000	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	49000000	USD
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CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	560000000	USD
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CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	871000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	942000000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	587000000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	622000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	284000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	320000000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	494000000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	676000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	3735000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	3575000000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1352000000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1424000000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	684000000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	641000000	USD
CY2020Q4	us-gaap	Assets Assets	12537000000	USD
CY2019Q4	us-gaap	Assets Assets	11348000000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	233000000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	190000000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	551000000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	446000000	USD
CY2020Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	84000000	USD
CY2019Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	68000000	USD
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	2168000000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	1928000000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	551000000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	461000000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	3587000000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	3093000000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	4110000000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3948000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	544000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	620000000	USD
CY2020Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	291000000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	259000000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	653000000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	624000000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	9185000000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	8544000000	USD
CY2020Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	2781000000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	2268000000	USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	294000000	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	294000000	shares
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	294000000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	294000000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	946000000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	903000000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	13367000000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	12205000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-637000000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-624000000	USD
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	53000000	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	50000000	shares
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	13461000000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	12299000000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	509000000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	479000000	USD
CY2020Q4	us-gaap	Minority Interest MinorityInterest	62000000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	57000000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	571000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	536000000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	12537000000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	11348000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	489000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	2534000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	2303000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	2121000000	USD
CY2020	us-gaap	Depreciation Depreciation	83000000	USD
CY2019	us-gaap	Depreciation Depreciation	82000000	USD
CY2018	us-gaap	Depreciation Depreciation	84000000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	123000000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	17000000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	18000000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	21000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-31000000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	46000000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	81000000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	90000000	USD
CY2020	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	1394000000	USD
CY2019	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	868000000	USD
CY2018	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	403000000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	645000000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	560000000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	503000000	USD
CY2020	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	194000000	USD
CY2019	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	143000000	USD
CY2018	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	154000000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	78000000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	94000000	USD
CY2020	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	16000000	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	49000000	USD
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2020	spgi	Accrued Legal Settlements Noncash AccruedLegalSettlementsNoncash	9000000	USD
CY2019	spgi	Accrued Legal Settlements Noncash AccruedLegalSettlementsNoncash	0	USD
CY2018	spgi	Accrued Legal Settlements Noncash AccruedLegalSettlementsNoncash	1000000	USD
CY2020	us-gaap	Pension Expense Reversal Of Expense Noncash PensionExpenseReversalOfExpenseNoncash	2000000	USD
CY2019	us-gaap	Pension Expense Reversal Of Expense Noncash PensionExpenseReversalOfExpenseNoncash	85000000	USD
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CY2019	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	11000000	USD
CY2018	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	11000000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-110000000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-25000000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-41000000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-18000000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	135000000	USD
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CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	81000000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	1000000	USD
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CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	70000000	USD
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CY2018	spgi	Increase Decreasein Accrued Legal Settlements IncreaseDecreaseinAccruedLegalSettlements	-108000000	USD
CY2020	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-15000000	USD
CY2019	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-56000000	USD
CY2018	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-67000000	USD
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CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-41000000	USD
CY2018	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-7000000	USD
CY2020	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	21000000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	17000000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	129000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	3567000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2776000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2064000000	USD
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	76000000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	115000000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	113000000	USD
CY2020	spgi	Paymentsto Acquire Businesses Including Contingent Payments Netof Cash Acquired PaymentstoAcquireBusinessesIncludingContingentPaymentsNetofCashAcquired	201000000	USD
CY2019	spgi	Paymentsto Acquire Businesses Including Contingent Payments Netof Cash Acquired PaymentstoAcquireBusinessesIncludingContingentPaymentsNetofCashAcquired	91000000	USD
CY2018	spgi	Paymentsto Acquire Businesses Including Contingent Payments Netof Cash Acquired PaymentstoAcquireBusinessesIncludingContingentPaymentsNetofCashAcquired	401000000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	18000000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	85000000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	6000000	USD
CY2020	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-19000000	USD
CY2019	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	10000000	USD
CY2018	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	5000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-240000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-131000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-513000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	1276000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	1086000000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1164000000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1240000000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1660000000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	16000000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	40000000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	34000000	USD
CY2020	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	0	USD
CY2019	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	0	USD
CY2018	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	25000000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	61000000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	66000000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	66000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2166000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1751000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2288000000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	75000000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	34000000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-84000000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1236000000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	928000000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-821000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2886000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1958000000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2779000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4122000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2886000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1958000000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	159000000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	162000000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	151000000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	683000000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	659000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	558000000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	766000000	USD
CY2018	spgi	Comprehensive Income Loss Net Of Tax Including Portion Attributable To Noncontrolling Interest Excluding Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterestExcludingRedeemableNoncontrollingInterest	1867000000	USD
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.00
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	514000000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1660000000	USD
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	0	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	84000000	USD
CY2018	spgi	Noncontrolling Interest Change In Redemption Value Of Redeemable Noncontrolling Interest NoncontrollingInterestChangeInRedemptionValueOfRedeemableNoncontrollingInterest	228000000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Other AdjustmentsToAdditionalPaidInCapitalOther	-23000000	USD
CY2018	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	352000000	USD
CY2018	us-gaap	Stockholders Equity Other StockholdersEquityOther	-40000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	684000000	USD
CY2019	spgi	Comprehensive Income Loss Net Of Tax Including Portion Attributable To Noncontrolling Interest Excluding Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterestExcludingRedeemableNoncontrollingInterest	2251000000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.28
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	570000000	USD
CY2019	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	36000000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1240000000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	52000000	USD
CY2019	spgi	Noncontrolling Interest Change In Redemption Value Of Redeemable Noncontrolling Interest NoncontrollingInterestChangeInRedemptionValueOfRedeemableNoncontrollingInterest	608000000	USD
CY2019	us-gaap	Stockholders Equity Other StockholdersEquityOther	-3000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	536000000	USD
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CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.68
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	656000000	USD
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1164000000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	45000000	USD
CY2020	spgi	Noncontrolling Interest Change In Redemption Value Of Redeemable Noncontrolling Interest NoncontrollingInterestChangeInRedemptionValueOfRedeemableNoncontrollingInterest	532000000	USD
CY2020	us-gaap	Stockholders Equity Other StockholdersEquityOther	-2000000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	571000000	USD
CY2020	spgi	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	181000000	USD
CY2019	spgi	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	170000000	USD
CY2018	spgi	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	151000000	USD
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	Segment
CY2020Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	7000000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	28000000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	2300000000	USD
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-32000000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	79000000	USD
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-30000000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-1000000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-19000000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-5000000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	31000000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-98000000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	25000000	USD
CY2020	spgi	Non Cash Settlement Chargeof Unamortized Actuarial Lossbefore Tax NonCashSettlementChargeofUnamortizedActuarialLossbeforeTax	3000000	USD
CY2019	spgi	Non Cash Settlement Chargeof Unamortized Actuarial Lossbefore Tax NonCashSettlementChargeofUnamortizedActuarialLossbeforeTax	113000000	USD
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of estimates</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with generally accepted accounting principles in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.</span></div>
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	4100000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2900000000	USD
CY2020Q4	us-gaap	Other Deferred Costs Gross OtherDeferredCostsGross	209000000	USD
CY2019Q4	us-gaap	Other Deferred Costs Gross OtherDeferredCostsGross	212000000	USD
CY2020Q4	us-gaap	Accumulated Amortization Of Other Deferred Costs AccumulatedAmortizationOfOtherDeferredCosts	150000000	USD
CY2019Q4	us-gaap	Accumulated Amortization Of Other Deferred Costs AccumulatedAmortizationOfOtherDeferredCosts	129000000	USD
CY2020Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	4600000000	USD
CY2019Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	4400000000	USD
CY2020	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4	reporting_unit
CY2019	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2018	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	29000000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	34000000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	33000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.011
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.218
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.220
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	112.98
CY2020Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	3100000000	USD
CY2020Q4	spgi	Tax Cutsand Jobs Actof2017 Incomplete Accounting Provisional Undistributed Accumulated Earningsof Foreign Subsidiary Amounttobe Reinvested TaxCutsandJobsActof2017IncompleteAccountingProvisionalUndistributedAccumulatedEarningsofForeignSubsidiaryAmounttobeReinvested	800000000	USD
CY2020	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	201000000	USD
CY2019	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	91000000	USD
CY2018	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	401000000	USD
CY2020	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	219000000	USD
CY2019	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	110000000	USD
CY2018	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	857000000	USD
CY2020	us-gaap	Transfer To Investments TransferToInvestments	201000000	USD
CY2019	us-gaap	Transfer To Investments TransferToInvestments	91000000	USD
CY2018	us-gaap	Transfer To Investments TransferToInvestments	803000000	USD
CY2020	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	18000000	USD
CY2019	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	19000000	USD
CY2018	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	54000000	USD
CY2020	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	2000000	USD
CY2019	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	16000000	USD
CY2018	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	20000000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	3535000000	USD
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	50000000	USD
CY2019	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	15000000	USD
CY2019	spgi	Goodwillreclassificationsduringperiod Goodwillreclassificationsduringperiod	0	USD
CY2019	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	5000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	3575000000	USD
CY2020	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	138000000	USD
CY2020	us-gaap	Goodwill Written Off Related To Sale Of Business Unit GoodwillWrittenOffRelatedToSaleOfBusinessUnit	2000000	USD
CY2020	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	24000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	3735000000	USD
CY2020Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	846000000	USD
CY2019Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	846000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1290000000	USD
CY2019	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	29000000	USD
CY2019	spgi	Finitelived Intangible Assets Reclassifications FinitelivedIntangibleAssetsReclassifications	0	USD
CY2019	us-gaap	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	-12000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1307000000	USD
CY2020	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	54000000	USD
CY2020	us-gaap	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	11000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1372000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	612000000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2019	spgi	Finitelived Intangible Assets Accumulated Amortization Reclassifications FinitelivedIntangibleAssetsAccumulatedAmortizationReclassifications	0	USD
CY2019	spgi	Finite Lived Intangible Assets Translation Adjustments Amortization FiniteLivedIntangibleAssetsTranslationAdjustmentsAmortization	5000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	729000000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	123000000	USD
CY2019	spgi	Finite Lived Intangible Assets Amortization Purchase Accounting Adjustments FiniteLivedIntangibleAssetsAmortizationPurchaseAccountingAdjustments	10000000	USD
CY2020	spgi	Finite Lived Intangible Assets Translation Adjustments Amortization FiniteLivedIntangibleAssetsTranslationAdjustmentsAmortization	-4000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	866000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	578000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	506000000	USD
CY2020	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P12Y
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	123000000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	96000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	87000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	81000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	79000000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	61000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	2226000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	2068000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1857000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1002000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	862000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	824000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3228000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2930000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2681000000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	349000000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	303000000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	198000000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1000000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	13000000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	53000000	USD
CY2020	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	350000000	USD
CY2019	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	316000000	USD
CY2018	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	251000000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	246000000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	201000000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	214000000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-9000000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	14000000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-2000000	USD
CY2020	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	237000000	USD
CY2019	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	215000000	USD
CY2018	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	212000000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	111000000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	93000000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	84000000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-4000000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	3000000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	13000000	USD
CY2020	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	107000000	USD
CY2019	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	96000000	USD
CY2018	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	97000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	694000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	627000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	560000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.030
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.026
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.028
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.003
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.003
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.002
CY2020	spgi	Effective Income Tax Rate Reconciliation Impactof Tax Reform Percent EffectiveIncomeTaxRateReconciliationImpactofTaxReformPercent	0
CY2019	spgi	Effective Income Tax Rate Reconciliation Impactof Tax Reform Percent EffectiveIncomeTaxRateReconciliationImpactofTaxReformPercent	0
CY2018	spgi	Effective Income Tax Rate Reconciliation Impactof Tax Reform Percent EffectiveIncomeTaxRateReconciliationImpactofTaxReformPercent	-0.003
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.007
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.014
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.012
CY2020	spgi	Effective Income Tax Rate Reconciliation Joint Venture Differential EffectiveIncomeTaxRateReconciliationJointVentureDifferential	-0.012
CY2019	spgi	Effective Income Tax Rate Reconciliation Joint Venture Differential EffectiveIncomeTaxRateReconciliationJointVentureDifferential	-0.012
CY2018	spgi	Effective Income Tax Rate Reconciliation Joint Venture Differential EffectiveIncomeTaxRateReconciliationJointVentureDifferential	-0.012
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.022
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.017
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.017
CY2020	spgi	Effective Income Tax Rate Reconciliation Other Net EffectiveIncomeTaxRateReconciliationOtherNet	0.019
CY2019	spgi	Effective Income Tax Rate Reconciliation Other Net EffectiveIncomeTaxRateReconciliationOtherNet	0.024
CY2018	spgi	Effective Income Tax Rate Reconciliation Other Net EffectiveIncomeTaxRateReconciliationOtherNet	0.013
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.215
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.214
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.209
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	64000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	58000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Deferred Gain On Sale Leaseback Transaction DeferredTaxAssetsDeferredGainOnSaleLeasebackTransaction	41000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Deferred Gain On Sale Leaseback Transaction DeferredTaxAssetsDeferredGainOnSaleLeasebackTransaction	35000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	12000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	27000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	28000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	28000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	217000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	155000000	USD
CY2020Q4	spgi	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	186000000	USD
CY2019Q4	spgi	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	199000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	53000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	25000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	601000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	527000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	347000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	318000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	138000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	194000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	7000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	0	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	492000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	512000000	USD
CY2020Q4	spgi	Deferred Tax Assets Net Of Deferred Tax Liabilities Before Valuation Allowance DeferredTaxAssetsNetOfDeferredTaxLiabilitiesBeforeValuationAllowance	109000000	USD
CY2019Q4	spgi	Deferred Tax Assets Net Of Deferred Tax Liabilities Before Valuation Allowance DeferredTaxAssetsNetOfDeferredTaxLiabilitiesBeforeValuationAllowance	15000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	219000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	163000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	110000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	148000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	67000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	52000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	177000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	200000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	110000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	148000000	USD
CY2020Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	3100000000	USD
CY2020Q4	spgi	Undistributed Earningsof Foreign Subsidiaries Amount Reinvested Indefinitelyin Foreign Subsidiaries UndistributedEarningsofForeignSubsidiariesAmountReinvestedIndefinitelyinForeignSubsidiaries	800000000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	683000000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	659000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	558000000	USD
CY2020Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	795000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	124000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	147000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	212000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	24000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	21000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	19000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	11000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	13000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	15000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	21000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	4000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	33000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	65000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	11000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	7000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	121000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	124000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	147000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	121000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	124000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	147000000	USD
CY2020	spgi	Net Increase Decreasein Tax Expensefrom Changein Unrecognized Tax Benefits NetIncreaseDecreaseinTaxExpensefromChangeinUnrecognizedTaxBenefits	-1000000	USD
CY2020Q4	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	19000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	24000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	20000000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	4110000000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3948000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	0	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	0	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	695000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	3400000000	USD
CY2020	spgi	Indebtedness To Cash Flow IndebtednessToCashFlow	4
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	80000000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	73000000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	79000000	USD
CY2020	spgi	Non Cash Settlement Chargeof Unamortized Actuarial Lossbefore Tax NonCashSettlementChargeofUnamortizedActuarialLossbeforeTax	3000000	USD
CY2020	spgi	Non Cash Settlement Chargeof Unamortized Actuarial Lossbefore Tax NonCashSettlementChargeofUnamortizedActuarialLossbeforeTax	3000000	USD
CY2020	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	91000000	USD
CY2019	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	187000000	USD
CY2018	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	80000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Finalization Of Pension And Non Pension Postretirement Plan Valuation Net Of Tax OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax	-113000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.06
CY2020Q4	us-gaap	Prescription Drug Subsidy Receipts Year Five1 PrescriptionDrugSubsidyReceiptsYearFive1	1000000	USD
CY2020Q4	us-gaap	Prescription Drug Subsidy Receipts After Year Five PrescriptionDrugSubsidyReceiptsAfterYearFive	1000000	USD
CY2020Q4	us-gaap	Prescription Drug Subsidy Receipts Year Four1 PrescriptionDrugSubsidyReceiptsYearFour1	1000000	USD
CY2020Q4	us-gaap	Prescription Drug Subsidy Receipts Year Three1 PrescriptionDrugSubsidyReceiptsYearThree1	1000000	USD
CY2020Q4	us-gaap	Prescription Drug Subsidy Receipts Next Twelve Months PrescriptionDrugSubsidyReceiptsNextTwelveMonths	1000000	USD
CY2020Q4	us-gaap	Prescription Drug Subsidy Receipts Year Two1 PrescriptionDrugSubsidyReceiptsYearTwo1	1000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	2243000000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	1960000000	USD
CY2020	spgi	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer Purchased During Year DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerPurchasedDuringYear	296921	shares
CY2020	spgi	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer Sold During Year DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerSoldDuringYear	331088	shares
CY2019	spgi	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer Purchased During Year DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerPurchasedDuringYear	165286	shares
CY2019	spgi	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer Sold During Year DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerSoldDuringYear	333030	shares
CY2020Q4	us-gaap	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer And Related Parties Included In Plan Assets DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets	1300000	shares
CY2019Q4	us-gaap	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer And Related Parties Included In Plan Assets DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets	1300000	shares
CY2020Q4	spgi	Defined Benefit Plan Market Value Of Shares Of Equity Securities Issued By Employer And Related Parties Included In Plan Assets DefinedBenefitPlanMarketValueOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets	414000000	USD
CY2019Q4	spgi	Defined Benefit Plan Market Value Of Shares Of Equity Securities Issued By Employer And Related Parties Included In Plan Assets DefinedBenefitPlanMarketValueOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets	355000000	USD
CY2020	spgi	Director Deferred Stock Ownership Plan Amount To Be Credited To Deferred Stock Accounts DirectorDeferredStockOwnershipPlanAmountToBeCreditedToDeferredStockAccounts	0.50
CY2020	spgi	Share Delivery Termif Elected ShareDeliveryTermifElected	P5Y
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	19700000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	20000000.0	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	500000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	700000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	123000000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	500000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	60.34
CY2020Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	122000000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	100000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	2000000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	3000000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	5000000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	16000000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	40000000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	34000000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	60000000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	110000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	77000000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	13000000	USD
CY2020Q4	spgi	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Reserved For Issuance ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesReservedForIssuance	20200000	shares
CY2019Q4	spgi	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Reserved For Issuance ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesReservedForIssuance	20700000	shares
CY2020	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	0	USD
CY2019	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	1000000	USD
CY2018	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	5000000	USD
CY2020	us-gaap	Restricted Stock Expense RestrictedStockExpense	90000000	USD
CY2019	us-gaap	Restricted Stock Expense RestrictedStockExpense	77000000	USD
CY2018	us-gaap	Restricted Stock Expense RestrictedStockExpense	89000000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	90000000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	78000000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	94000000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	15000000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	13000000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	33000000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	27000000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	19000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.011
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.218
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.220
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	112.98
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	700000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	55.73
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	200000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	280.79
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	0	shares
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	58.06
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	500000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	60.46
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	2000000	shares
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020	spgi	Quarterly Dividend Rate Per Share QuarterlyDividendRatePerShare	0.67
CY2019	spgi	Quarterly Dividend Rate Per Share QuarterlyDividendRatePerShare	0.57
CY2018	spgi	Quarterly Dividend Rate Per Share QuarterlyDividendRatePerShare	0.50
CY2020	spgi	Annualized Dividend Rate Per Share AnnualizedDividendRatePerShare	2.68
CY2019	spgi	Annualized Dividend Rate Per Share AnnualizedDividendRatePerShare	2.28
CY2018	spgi	Annualized Dividend Rate Per Share AnnualizedDividendRatePerShare	2.00
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	645000000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	560000000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	503000000	USD
CY2020	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	4000000.0	shares
CY2019Q4	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3000000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1164000000	USD
CY2019	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	5900000	shares
CY2019Q1	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	400000	shares
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	8400000	shares
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1660000000	USD
CY2020	spgi	Interest In Joint Venture Minimum Percentage InterestInJointVentureMinimumPercentage	0.20
CY2020	spgi	Business Acquisition Agreement Terms Change Of Control Put Option For Minority Interest Ownership Effective Period BusinessAcquisitionAgreementTermsChangeOfControlPutOptionForMinorityInterestOwnershipEffectivePeriod	P15D
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	2268000000	USD
CY2020	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	181000000	USD
CY2020	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	200000000	USD
CY2019	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	115000000	USD
CY2020	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	532000000	USD
CY2020Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	2781000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	2339000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	2123000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	1958000000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	241000000.0	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	245400000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	250900000	shares
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1100000	shares
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1500000	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2300000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	242100000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	246900000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	253200000	shares
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	9.71
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.65
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.80
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	9.66
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.60
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.73
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	Segment
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7442000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6699000000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6258000000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	3617000000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	3226000000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	2790000000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7442000000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7442000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6699000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6699000000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6258000000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6258000000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	206000000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	204000000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	206000000	USD
CY2020	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	76000000	USD
CY2018	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	113000000	USD
CY2020Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	0	USD
CY2019Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	9000000	USD
CY2020Q4	us-gaap	Assets Assets	12537000000	USD
CY2019Q4	us-gaap	Assets Assets	11348000000	USD
CY2020	spgi	Maximum Percentage Of Consolidated Revenue Represented By Foreign Countries MaximumPercentageOfConsolidatedRevenueRepresentedByForeignCountries	0.07
CY2020	spgi	Maximum Percentage Of Consolidated Revenue Represented By Single Customer MaximumPercentageOfConsolidatedRevenueRepresentedBySingleCustomer	0.10
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7442000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6699000000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6258000000	USD
CY2020Q4	us-gaap	Noncurrent Assets NoncurrentAssets	5429000000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	5406000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P12Y
CY2020	spgi	Lessee Operating Lease Periodof Optionsto Terminate Lease LesseeOperatingLeasePeriodofOptionstoTerminateLease	P1Y
CY2020	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	120000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	68000000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	494000000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	676000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	100000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	112000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	544000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	620000000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	144000000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	157000000	USD
CY2020	us-gaap	Sublease Income SubleaseIncome	6000000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	18000000	USD
CY2020	us-gaap	Lease Cost LeaseCost	138000000	USD
CY2019	us-gaap	Lease Cost LeaseCost	139000000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	137000000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	146000000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	8000000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	777000000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y6M
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0378
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0393
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	120000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	103000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	85000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	60000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	302000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	738000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	94000000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	644000000	USD
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1786000000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1943000000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1846000000	USD
CY2020Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1867000000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	7442000000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	912000000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	1105000000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	944000000	USD
CY2020Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	656000000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	3617000000	USD
CY2020Q1	us-gaap	Profit Loss ProfitLoss	689000000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	842000000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	498000000	USD
CY2020Q4	us-gaap	Profit Loss ProfitLoss	505000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	2534000000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	639000000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	792000000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	455000000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	454000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	2339000000	USD
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.64
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.29
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.89
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.89
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	9.71
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.62
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.28
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.88
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.88
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	9.66
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1571000000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1704000000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1689000000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1735000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6699000000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	705000000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	813000000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	891000000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	818000000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	3226000000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	453000000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	602000000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	662000000	USD
CY2019Q4	us-gaap	Profit Loss ProfitLoss	585000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	2303000000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	410000000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	555000000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	617000000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	541000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	2123000000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.66
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.25
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.52
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.22
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.65
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.65
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.24
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.50
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.20
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.60

Files In Submission

Name	View Source	Status
0000064040-21-000063-index-headers.html	Edgar Link	pending
0000064040-21-000063-index.html	Edgar Link	pending
0000064040-21-000063.txt	Edgar Link	pending
0000064040-21-000063-xbrl.zip	Edgar Link	pending
ex10271231202010-k.htm	Edgar Link	pending
ex10351231202010-k.htm	Edgar Link	pending
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Financial_Report.xlsx	Edgar Link	pending
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report.css	Edgar Link	pending
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spgi-20201231.htm	Edgar Link	pending
spgi-20201231.xsd	Edgar Link	pending
spgi-20201231_cal.xml	Edgar Link	unprocessable
spgi-20201231_def.xml	Edgar Link	unprocessable
spgi-20201231_g1.jpg	Edgar Link	pending
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spgi-20201231_htm.xml	Edgar Link	completed
spgi-20201231_lab.xml	Edgar Link	unprocessable
spgi-20201231_pre.xml	Edgar Link	unprocessable
spgi-ex21x20201231xq4.htm	Edgar Link	pending
spgi-ex23x20201231xq4.htm	Edgar Link	pending
spgi-ex311x20201231xq4.htm	Edgar Link	pending
spgi-ex312x20201231xq4.htm	Edgar Link	pending
spgi-ex32x20201231xq4.htm	Edgar Link	pending

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$SPGI
S&P Global Inc. Stock $spgi

2020 Q4 Form 10-K Financial Statement

#000006404021000063 Filed on February 09, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SPGI S&P Global Inc. Stock $spgi

2020 Q4 Form 10-K Financial Statement

#000006404021000063 Filed on February 09, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SPGI
S&P Global Inc. Stock $spgi