$SPGI
S&P Global Inc. Stock $spgi

$spgi Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000006404020000055 Filed on February 10, 2020

Income Statement

Concept	2019 Q4	2019	2018 Q4
Revenue	$1.735B	$6.699B	$1.536B
YoY Change	12.96%	7.05%	-3.34%
Cost Of Revenue	$464.0M	$1.976B	$411.0M
YoY Change	12.9%	7.51%	-5.08%
Gross Profit	$1.271B	$4.723B	$1.126B
YoY Change	12.88%	6.86%	-2.51%
Gross Profit Margin	73.26%	70.5%	73.31%
Selling, General & Admin	$327.0M	$1.342B	$342.0M
YoY Change	-4.39%	-5.76%	-29.05%
% of Gross Profit	25.73%	28.41%	30.37%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$51.00M	$204.0M	$55.00M
YoY Change	-7.27%	-0.97%	19.57%
% of Gross Profit	4.01%	4.32%	4.88%
Operating Expenses	$378.0M	$3.522B	$397.0M
YoY Change	-4.79%	1.56%	-24.81%
Operating Profit	$818.0M	$3.226B	$704.0M
YoY Change	16.19%	15.63%	12.28%
Interest Expense	-$96.00M	$141.0M	-$39.00M
YoY Change	146.15%	5.22%	0.0%
% of Operating Profit	-11.74%	4.37%	-5.54%
Other Income/Expense, Net	$9.000M	-$98.00M	$6.000M
YoY Change	50.0%	-492.0%	500.0%
Pretax Income	$731.0M	$2.930B	$671.0M
YoY Change	8.94%	9.29%	13.92%
Income Tax	$145.0M	$627.0M	$120.0M
% Of Pretax Income	19.84%	21.4%	17.88%
Net Earnings	$541.0M	$2.123B	$512.0M
YoY Change	5.66%	8.43%	94.68%
Net Earnings / Revenue	31.18%	31.69%	33.33%
Basic Earnings Per Share	$2.22	$8.65	$2.06
Diluted Earnings Per Share	$2.20	$8.60	$2.03
COMMON SHARES
Basic Shares Outstanding	244.4M shares	245.4M shares	250.9M shares
Diluted Shares Outstanding		246.9M shares

Balance Sheet

Concept	2019 Q4	2019	2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$2.894B	$2.894B	$1.935B
YoY Change	49.56%	49.56%	-30.67%
Cash & Equivalents	$2.900B	$2.866B	$1.917B
Short-Term Investments	$28.00M	$28.00M	$18.00M
Other Short-Term Assets	$221.0M	$241.0M	$162.0M
YoY Change	36.42%	18.72%	-28.32%
Inventory
Prepaid Expenses
Receivables	$1.577B	$1.577B	$1.449B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$4.712B	$4.712B	$3.587B
YoY Change	31.36%	31.36%	-17.04%
LONG-TERM ASSETS
Property, Plant & Equipment	$320.0M	$996.0M	$270.0M
YoY Change	18.52%	268.89%	-1.82%
Goodwill	$3.575B		$3.535B
YoY Change	1.13%		18.27%
Intangibles	$1.424B		$1.524B
YoY Change	-6.56%		9.8%
Long-Term Investments
YoY Change
Other Assets	$641.0M	$641.0M	$525.0M
YoY Change	22.1%	22.1%	16.93%
Total Long-Term Assets	$6.636B	$6.636B	$5.854B
YoY Change	13.36%	13.36%	14.76%
TOTAL ASSETS
Total Short-Term Assets	$4.712B	$4.712B	$3.587B
Total Long-Term Assets	$6.636B	$6.636B	$5.854B
Total Assets	$11.35B	$11.35B	$9.441B
YoY Change	20.2%	20.2%	0.17%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$190.0M	$190.0M	$211.0M
YoY Change	-9.95%	-9.95%	8.21%
Accrued Expenses	$558.0M	$558.0M	$354.0M
YoY Change	57.63%	57.63%	-38.86%
Deferred Revenue	$1.928B		$1.641B
YoY Change	17.49%		1.74%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$3.093B	$3.093B	$2.630B
YoY Change	17.6%	17.6%	-18.17%
LONG-TERM LIABILITIES
Long-Term Debt	$3.948B	$3.948B	$3.662B
YoY Change	7.81%	7.81%	15.52%
Other Long-Term Liabilities	$624.0M	$1.503B	$616.0M
YoY Change	1.3%	77.87%	-9.28%
Total Long-Term Liabilities	$4.572B	$5.451B	$4.278B
YoY Change	6.87%	20.95%	11.15%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.093B	$3.093B	$2.630B
Total Long-Term Liabilities	$4.572B	$5.451B	$4.278B
Total Liabilities	$8.544B	$10.87B	$7.137B
YoY Change	19.71%	23.33%	-2.33%
SHAREHOLDERS EQUITY
Retained Earnings	$12.21B		$11.28B
YoY Change	8.16%		12.58%
Common Stock	$1.197B		$1.127B
YoY Change	6.21%		20.28%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$12.30B		$11.04B
YoY Change	11.39%		14.99%
Treasury Stock Shares	50.00M shares		45.00M shares
Shareholders Equity	$479.0M	$479.0M	$628.0M
YoY Change
Total Liabilities & Shareholders Equity	$11.35B	$11.35B	$9.441B
YoY Change	20.2%	20.2%	0.17%

Cashflow Statement

Concept	2019 Q4	2019	2018 Q4
OPERATING ACTIVITIES
Net Income	$541.0M	$2.123B	$512.0M
YoY Change	5.66%	8.43%	94.68%
Depreciation, Depletion And Amortization	$51.00M	$204.0M	$55.00M
YoY Change	-7.27%	-0.97%	19.57%
Cash From Operating Activities	$1.004B	$2.776B	$663.0M
YoY Change	51.43%	34.5%	-18.45%
INVESTING ACTIVITIES
Capital Expenditures	-$38.00M	-$115.0M	-$25.00M
YoY Change	52.0%	1.77%	-45.65%
Acquisitions		$91.00M
YoY Change
Other Investing Activities	-$73.00M	-$16.00M	-$142.0M
YoY Change	-48.59%	-96.0%	1675.0%
Cash From Investing Activities	-$111.0M	-$131.0M	-$167.0M
YoY Change	-33.53%	-74.46%	209.26%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$3.000M	$1.240B	$6.000M
YoY Change	-50.0%	-25.3%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-67.00M	-$1.751B	-709.0M
YoY Change	-90.55%	-23.47%	139.53%
NET CHANGE
Cash From Operating Activities	1.004B	$2.776B	663.0M
Cash From Investing Activities	-111.0M	-$131.0M	-167.0M
Cash From Financing Activities	-67.00M	-$1.751B	-709.0M
Net Change In Cash	826.0M	$928.0M	-213.0M
YoY Change	-487.79%	-213.03%	-146.0%
FREE CASH FLOW
Cash From Operating Activities	$1.004B	$2.776B	$663.0M
Capital Expenditures	-$38.00M	-$115.0M	-$25.00M
Free Cash Flow	$1.042B	$2.891B	$688.0M
YoY Change	51.45%	32.8%	-19.91%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.00
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.28
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2019	dei	Amendment Flag AmendmentFlag	false
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0000064040
CY2018Q4	spgi	Allowance For Doubtful Accounts And Sales Returns AllowanceForDoubtfulAccountsAndSalesReturns	34000000	USD
CY2019Q4	spgi	Allowance For Doubtful Accounts And Sales Returns AllowanceForDoubtfulAccountsAndSalesReturns	34000000	USD
CY2019	spgi	Percentageof Revenue Recognized Next Year PercentageofRevenueRecognizedNextYear	0.5
CY2019	spgi	Percentageof Revenue Recognized Within Two Years PercentageofRevenueRecognizedWithinTwoYears	0.75
CY2017	us-gaap	Advertising Expense AdvertisingExpense	33000000	USD
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.64
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	294000000	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	294000000	shares
CY2018Q4	us-gaap	Defined Benefit Plan Amount Of Employer And Related Party Securities Included In Plan Assets DefinedBenefitPlanAmountOfEmployerAndRelatedPartySecuritiesIncludedInPlanAssets	3000000	USD
CY2017	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2018	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2017	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	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	0	USD
CY2018Q4	us-gaap	Longterm Commercial Paper Current And Noncurrent LongtermCommercialPaperCurrentAndNoncurrent	0	USD
CY2018Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	846000000	USD
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 Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.218
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	45000000	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	50000000	shares
CY2019	dei	Document Type DocumentType	10-K
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Period End Date DocumentPeriodEndDate	2019-12-31
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity File Number EntityFileNumber	1-1023
CY2019	dei	Entity Registrant Name EntityRegistrantName	S&P Global Inc.
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	NY
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	13-1026995
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	55 Water Street
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	New York
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	10041
CY2019	dei	City Area Code CityAreaCode	212
CY2019	dei	Local Phone Number LocalPhoneNumber	438-1000
CY2019	dei	Security12b Title Security12bTitle	Common Stock — $1 par value
CY2019	dei	Trading Symbol TradingSymbol	SPGI
CY2019	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2019Q2	dei	Entity Public Float EntityPublicFloat	56100000000	USD
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	243800000	shares
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
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6063000000	USD
CY2019	us-gaap	Cost Of Revenue CostOfRevenue	1801000000	USD
CY2018	us-gaap	Cost Of Revenue CostOfRevenue	1698000000	USD
CY2017	us-gaap	Cost Of Revenue CostOfRevenue	1694000000	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1517000000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1564000000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1606000000	USD
CY2019	us-gaap	Depreciation Depreciation	82000000	USD
CY2018	us-gaap	Depreciation Depreciation	84000000	USD
CY2017	us-gaap	Depreciation Depreciation	82000000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	98000000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	3522000000	USD
CY2018	us-gaap	Costs And Expenses CostsAndExpenses	3468000000	USD
CY2017	us-gaap	Costs And Expenses CostsAndExpenses	3480000000	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
CY2017	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	3226000000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	2790000000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	2583000000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-98000000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	25000000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	27000000	USD
CY2019	us-gaap	Interest Expense InterestExpense	198000000	USD
CY2018	us-gaap	Interest Expense InterestExpense	134000000	USD
CY2017	us-gaap	Interest Expense InterestExpense	149000000	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
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2461000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	627000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	560000000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	823000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	2303000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	2121000000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	1638000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	180000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	163000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	142000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	2123000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	1958000000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	1496000000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.65
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.80
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.84
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.60
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.73
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.78
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
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	256300000	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
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	258900000	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	244000000.0	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	248400000	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	253700000	shares
CY2019	us-gaap	Profit Loss ProfitLoss	2303000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	2121000000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	1638000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	10000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-96000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	93000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-8000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	4000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	18000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-100000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	93000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-141000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	14000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-52000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-39000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	9000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-11000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-102000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	5000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-41000000	USD
CY2019	spgi	Other Comprehensive Income Loss Availableforsaleand Derivatives Adjustmentbefore Tax OtherComprehensiveIncomeLossAvailableforsaleandDerivativesAdjustmentbeforeTax	-2000000	USD
CY2018	spgi	Other Comprehensive Income Loss Availableforsaleand Derivatives Adjustmentbefore Tax OtherComprehensiveIncomeLossAvailableforsaleandDerivativesAdjustmentbeforeTax	2000000	USD
CY2017	spgi	Other Comprehensive Income Loss Availableforsaleand Derivatives Adjustmentbefore Tax OtherComprehensiveIncomeLossAvailableforsaleandDerivativesAdjustmentbeforeTax	-10000000	USD
CY2019	spgi	Other Comprehensive Income Loss Availableforsaleand Derivatives Adjustment Tax OtherComprehensiveIncomeLossAvailableforsaleandDerivativesAdjustmentTax	0	USD
CY2018	spgi	Other Comprehensive Income Loss Availableforsaleand Derivatives Adjustment Tax OtherComprehensiveIncomeLossAvailableforsaleandDerivativesAdjustmentTax	0	USD
CY2017	spgi	Other Comprehensive Income Loss Availableforsaleand Derivatives Adjustment Tax OtherComprehensiveIncomeLossAvailableforsaleandDerivativesAdjustmentTax	0	USD
CY2019	spgi	Other Comprehensive Income Loss Availableforsaleand Derivatives Adjustment Netof Tax OtherComprehensiveIncomeLossAvailableforsaleandDerivativesAdjustmentNetofTax	-2000000	USD
CY2018	spgi	Other Comprehensive Income Loss Availableforsaleand Derivatives Adjustment Netof Tax OtherComprehensiveIncomeLossAvailableforsaleandDerivativesAdjustmentNetofTax	2000000	USD
CY2017	spgi	Other Comprehensive Income Loss Availableforsaleand Derivatives Adjustment Netof Tax OtherComprehensiveIncomeLossAvailableforsaleandDerivativesAdjustmentNetofTax	-10000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	2421000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	2018000000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1762000000	USD
CY2019	spgi	Comprehensive Income Loss Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	10000000	USD
CY2018	spgi	Comprehensive Income Loss Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	12000000	USD
CY2017	spgi	Comprehensive Income Loss Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	13000000	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
CY2017	spgi	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	129000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2241000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1855000000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1620000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2866000000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1917000000	USD
CY2019Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	20000000	USD
CY2018Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	41000000	USD
CY2019Q4	us-gaap	Short Term Investments ShortTermInvestments	28000000	USD
CY2018Q4	us-gaap	Short Term Investments ShortTermInvestments	18000000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1577000000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1449000000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	221000000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	162000000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	4712000000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	3587000000	USD
CY2019Q4	spgi	Buildings And Leasehold Improvements BuildingsAndLeaseholdImprovements	420000000	USD
CY2018Q4	spgi	Buildings And Leasehold Improvements BuildingsAndLeaseholdImprovements	372000000	USD
CY2019Q4	spgi	Equipment And Furniture EquipmentAndFurniture	522000000	USD
CY2018Q4	spgi	Equipment And Furniture EquipmentAndFurniture	494000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	942000000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	866000000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	622000000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	596000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	320000000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	270000000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	676000000	USD
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
CY2019Q4	us-gaap	Goodwill Goodwill	3575000000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	3535000000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1424000000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1524000000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	641000000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	525000000	USD
CY2019Q4	us-gaap	Assets Assets	11348000000	USD
CY2018Q4	us-gaap	Assets Assets	9441000000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	190000000	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	211000000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	446000000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	354000000	USD
CY2019Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	68000000	USD
CY2018Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	73000000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	1928000000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	1641000000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	461000000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	351000000	USD
CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	3093000000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2630000000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3948000000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3662000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	620000000	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	259000000	USD
CY2018Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	229000000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	624000000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	616000000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	8544000000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	7137000000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	2268000000	USD
CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	1620000000	USD
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	294000000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	294000000	USD
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	903000000	USD
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	833000000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	12205000000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	11284000000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-624000000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-742000000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	12299000000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	11041000000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	479000000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	628000000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	57000000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	56000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	536000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	684000000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	11348000000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	9441000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	2303000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	2121000000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	1638000000	USD
CY2019	us-gaap	Depreciation Depreciation	82000000	USD
CY2018	us-gaap	Depreciation Depreciation	84000000	USD
CY2017	us-gaap	Depreciation Depreciation	82000000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	98000000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	18000000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	21000000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	16000000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	46000000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	81000000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	78000000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	94000000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	99000000	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
CY2017	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	0	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	1000000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	55000000	USD
CY2019	us-gaap	Pension Expense Reversal Of Expense Noncash PensionExpenseReversalOfExpenseNoncash	85000000	USD
CY2018	us-gaap	Pension Expense Reversal Of Expense Noncash PensionExpenseReversalOfExpenseNoncash	0	USD
CY2017	us-gaap	Pension Expense Reversal Of Expense Noncash PensionExpenseReversalOfExpenseNoncash	0	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-93000000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-52000000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-96000000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	135000000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	164000000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	196000000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	81000000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	1000000	USD
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-10000000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	73000000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-106000000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	75000000	USD
CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	256000000	USD
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	70000000	USD
CY2017	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	85000000	USD
CY2019	spgi	Increase Decreasein Accrued Legal Settlements IncreaseDecreaseinAccruedLegalSettlements	-1000000	USD
CY2018	spgi	Increase Decreasein Accrued Legal Settlements IncreaseDecreaseinAccruedLegalSettlements	-108000000	USD
CY2017	spgi	Increase Decreasein Accrued Legal Settlements IncreaseDecreaseinAccruedLegalSettlements	-4000000	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
CY2017	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-85000000	USD
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
CY2017	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	32000000	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
CY2017	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	-15000000	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
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2016000000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	115000000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	113000000	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	123000000	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
CY2017	spgi	Paymentsto Acquire Businesses Including Contingent Payments Netof Cash Acquired PaymentstoAcquireBusinessesIncludingContingentPaymentsNetofCashAcquired	83000000	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
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2000000	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
CY2017	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	5000000	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
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-209000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	1086000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	489000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	USD
CY2019	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	868000000	USD
CY2018	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	403000000	USD
CY2017	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	560000000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	503000000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	421000000	USD
CY2019	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	143000000	USD
CY2018	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	154000000	USD
CY2017	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	111000000	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
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1001000000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	40000000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	34000000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	75000000	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
CY2017	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	0	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
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	49000000	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
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1507000000	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
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	87000000	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
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	387000000	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
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2392000000	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
CY2019	us-gaap	Interest Paid Net InterestPaidNet	162000000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	151000000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	139000000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	659000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	558000000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	709000000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	701000000	USD
CY2017	spgi	Comprehensive Income Loss Net Of Tax Including Portion Attributable To Noncontrolling Interest Excluding Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxIncludingPortionAttributableToNoncontrollingInterestExcludingRedeemableNoncontrollingInterest	1635000000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	431000000	USD
CY2017	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1006000000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	131000000	USD
CY2017	spgi	Noncontrolling Interest Change In Redemption Value Of Redeemable Noncontrolling Interest NoncontrollingInterestChangeInRedemptionValueOfRedeemableNoncontrollingInterest	260000000	USD
CY2017	us-gaap	Stockholders Equity Other StockholdersEquityOther	4000000	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	Dividends Common Stock Cash DividendsCommonStockCash	514000000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1660000000	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	Dividends Common Stock Cash DividendsCommonStockCash	570000000	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	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	36000000	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
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
CY2017	spgi	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	129000000	USD
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	Segment
CY2019Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	28000000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	26000000	USD
CY2019Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	1900000000	USD
CY2019	spgi	Non Cash Settlement Chargeof Unamortized Actuarial Lossbefore Tax NonCashSettlementChargeofUnamortizedActuarialLossbeforeTax	113000000	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of estimates</span></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">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>
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2900000000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1900000000	USD
CY2019Q4	us-gaap	Other Deferred Costs Gross OtherDeferredCostsGross	212000000	USD
CY2018Q4	us-gaap	Other Deferred Costs Gross OtherDeferredCostsGross	205000000	USD
CY2019Q4	us-gaap	Accumulated Amortization Of Other Deferred Costs AccumulatedAmortizationOfOtherDeferredCosts	129000000	USD
CY2018Q4	us-gaap	Accumulated Amortization Of Other Deferred Costs AccumulatedAmortizationOfOtherDeferredCosts	105000000	USD
CY2019Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	3900000000	USD
CY2018Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	3800000000	USD
CY2019	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4
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 Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	112.98
CY2019Q4	us-gaap	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Provisional Undistributed Accumulated Earnings Of Foreign Subsidiary TaxCutsAndJobsActOf2017IncompleteAccountingProvisionalUndistributedAccumulatedEarningsOfForeignSubsidiary	3200000000	USD
CY2019Q4	spgi	Tax Cutsand Jobs Actof2017 Incomplete Accounting Provisional Undistributed Accumulated Earningsof Foreign Subsidiary Amounttobe Reinvested TaxCutsandJobsActof2017IncompleteAccountingProvisionalUndistributedAccumulatedEarningsofForeignSubsidiaryAmounttobeReinvested	776000000	USD
CY2019	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	91000000	USD
CY2018	us-gaap	Business Combination Consideration Transferred1 BusinessCombinationConsiderationTransferred1	401000000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	83000000	USD
CY2019	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	110000000	USD
CY2018	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	857000000	USD
CY2017	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	83000000	USD
CY2019	us-gaap	Transfer To Investments TransferToInvestments	91000000	USD
CY2018	us-gaap	Transfer To Investments TransferToInvestments	803000000	USD
CY2017	us-gaap	Transfer To Investments TransferToInvestments	83000000	USD
CY2019	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	19000000	USD
CY2018	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	54000000	USD
CY2017	us-gaap	Liabilities Assumed1 LiabilitiesAssumed1	0	USD
CY2019	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	49000000	USD
CY2017Q2	us-gaap	Assets Held For Sale Not Part Of Disposal Group Current AssetsHeldForSaleNotPartOfDisposalGroupCurrent	5000000	USD
CY2019	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	5000000	USD
CY2018	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	8000000	USD
CY2017	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	6000000	USD
CY2019	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	49000000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	2989000000	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	565000000	USD
CY2018	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	-19000000	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
CY2019Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	846000000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	1167000000	USD
CY2018	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	126000000	USD
CY2018	us-gaap	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	-3000000	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
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	493000000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2018	spgi	Finitelived Intangible Assets Accumulated Amortization Reclassifications FinitelivedIntangibleAssetsAccumulatedAmortizationReclassifications	0	USD
CY2018	spgi	Finite Lived Intangible Assets Translation Adjustments Amortization FiniteLivedIntangibleAssetsTranslationAdjustmentsAmortization	3000000	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
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	678000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	578000000	USD
CY2019	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P12Y
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	98000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	117000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	86000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	78000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	73000000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	70000000	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
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1723000000	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
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	738000000	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
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2461000000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	303000000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	198000000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	489000000	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
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	63000000	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
CY2017	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	552000000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	201000000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	214000000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	194000000	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
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-3000000	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
CY2017	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	191000000	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
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	73000000	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
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	7000000	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
CY2017	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	80000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	627000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	560000000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	823000000	USD
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
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.350
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
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.025
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
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.039
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
CY2017	spgi	Effective Income Tax Rate Reconciliation Impactof Tax Reform Percent EffectiveIncomeTaxRateReconciliationImpactofTaxReformPercent	0.060
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
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.027
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
CY2017	spgi	Effective Income Tax Rate Reconciliation Joint Venture Differential EffectiveIncomeTaxRateReconciliationJointVentureDifferential	-0.018
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
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.021
CY2019	spgi	Effective Income Tax Rate Reconciliation Other Net EffectiveIncomeTaxRateReconciliationOtherNet	0.024
CY2018	spgi	Effective Income Tax Rate Reconciliation Other Net EffectiveIncomeTaxRateReconciliationOtherNet	0.013
CY2017	spgi	Effective Income Tax Rate Reconciliation Other Net EffectiveIncomeTaxRateReconciliationOtherNet	0.004
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.214
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.209
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.334
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit	149000000	USD
CY2018	spgi	Tax Cutsand Jobs Actof2017 Transition Taxfor Accumulated Foreign Earnings Income Tax Expense Benefit TaxCutsandJobsActof2017TransitionTaxforAccumulatedForeignEarningsIncomeTaxExpenseBenefit	173000000	USD
CY2018	spgi	Tax Cutsand Jobs Actof2017 Changein Tax Rate Deferred Tax Liability Income Tax Expense Benefit TaxCutsandJobsActof2017ChangeinTaxRateDeferredTaxLiabilityIncomeTaxExpenseBenefit	-24000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Legal Settlements DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLegalSettlements	2000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Legal Settlements DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLegalSettlements	2000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	58000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	57000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Deferred Gain On Sale Leaseback Transaction DeferredTaxAssetsDeferredGainOnSaleLeasebackTransaction	30000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Deferred Gain On Sale Leaseback Transaction DeferredTaxAssetsDeferredGainOnSaleLeasebackTransaction	36000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	27000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Unearned Premiums Reserve DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsUnearnedPremiumsReserve	48000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	28000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	29000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	9000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	8000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	155000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	155000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	24000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	24000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	333000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	359000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	318000000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssets	295000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	318000000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	295000000	USD
CY2019Q4	spgi	Deferred Tax Assets Net Of Deferred Tax Liabilities Before Valuation Allowance DeferredTaxAssetsNetOfDeferredTaxLiabilitiesBeforeValuationAllowance	15000000	USD
CY2018Q4	spgi	Deferred Tax Assets Net Of Deferred Tax Liabilities Before Valuation Allowance DeferredTaxAssetsNetOfDeferredTaxLiabilitiesBeforeValuationAllowance	64000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	163000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	156000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	148000000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	92000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	52000000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	52000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	200000000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	144000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	148000000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	92000000	USD
CY2019Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	3200000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	19000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	23000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	11000000	USD
CY2019Q4	spgi	Undistributed Earningsof Foreign Subsidiaries Amount Reinvested Indefinitelyin Foreign Subsidiaries UndistributedEarningsofForeignSubsidiariesAmountReinvestedIndefinitelyinForeignSubsidiaries	776000000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	659000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	558000000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	709000000	USD
CY2019Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	689000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	147000000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	212000000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	221000000	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 Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	17000000	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
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	32000000	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
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	5000000	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
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	12000000	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
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
CY2019	spgi	Net Increase Decreasein Tax Expensefrom Changein Unrecognized Tax Benefits NetIncreaseDecreaseinTaxExpensefromChangeinUnrecognizedTaxBenefits	10000000	USD
CY2019Q4	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	10000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	20000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	35000000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3948000000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3662000000	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	0	USD
CY2019Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	3900000000	USD
CY2019Q4	us-gaap	Longterm Commercial Paper Current And Noncurrent LongtermCommercialPaperCurrentAndNoncurrent	0	USD
CY2019	spgi	Indebtedness To Cash Flow IndebtednessToCashFlow	4
CY2019	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	187000000	USD
CY2018	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	80000000	USD
CY2017	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	70000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Finalization Of Pension And Non Pension Postretirement Plan Valuation Net Of Tax OtherComprehensiveIncomeLossFinalizationOfPensionAndNonPensionPostretirementPlanValuationNetOfTax	-113000000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	73000000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	79000000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	70000000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.0650
CY2018Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.0650
CY2017Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.0700
CY2019Q4	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.06
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Accumulated Postretirement Benefit Obligation DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnAccumulatedPostretirementBenefitObligation	0	USD
CY2019	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Decrease On Accumulated Postretirement Benefit Obligation1 DefinedBenefitPlanEffectOfOnePercentagePointDecreaseOnAccumulatedPostretirementBenefitObligation1	0	USD
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	1960000000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	1987000000	USD
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
CY2018	spgi	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer Purchased During Year DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerPurchasedDuringYear	193051	shares
CY2018	spgi	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer Sold During Year DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerSoldDuringYear	205798	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
CY2018Q4	us-gaap	Defined Benefit Plan Number Of Shares Of Equity Securities Issued By Employer And Related Parties Included In Plan Assets DefinedBenefitPlanNumberOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets	1500000	shares
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
CY2018Q4	spgi	Defined Benefit Plan Market Value Of Shares Of Equity Securities Issued By Employer And Related Parties Included In Plan Assets DefinedBenefitPlanMarketValueOfSharesOfEquitySecuritiesIssuedByEmployerAndRelatedPartiesIncludedInPlanAssets	251000000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Amount Of Employer And Related Party Securities Included In Plan Assets DefinedBenefitPlanAmountOfEmployerAndRelatedPartySecuritiesIncludedInPlanAssets	3000000	USD
CY2019	spgi	Director Deferred Stock Ownership Plan Amount To Be Credited To Deferred Stock Accounts DirectorDeferredStockOwnershipPlanAmountToBeCreditedToDeferredStockAccounts	0.50
CY2019	spgi	Share Delivery Termif Elected ShareDeliveryTermifElected	P5Y
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	20000000.0	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	33300000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	700000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1700000	shares
CY2019Q4	spgi	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Reserved For Issuance ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesReservedForIssuance	20700000	shares
CY2018Q4	spgi	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Reserved For Issuance ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesReservedForIssuance	35000000.0	shares
CY2019	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	1000000	USD
CY2018	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	5000000	USD
CY2017	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	3000000	USD
CY2019	us-gaap	Restricted Stock Expense RestrictedStockExpense	77000000	USD
CY2018	us-gaap	Restricted Stock Expense RestrictedStockExpense	89000000	USD
CY2017	us-gaap	Restricted Stock Expense RestrictedStockExpense	96000000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	78000000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	94000000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	99000000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	13000000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	19000000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	38000000	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 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
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1700000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	47.92
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1000000.0	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	163.99
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	0	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	70.70
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
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y1M6D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	155000000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	700000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	55.12
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	151000000	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
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	4000000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	40000000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	34000000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	75000000	USD
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	2000000000000	shares
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2017	spgi	Quarterly Dividend Rate Per Share QuarterlyDividendRatePerShare	0.41
CY2019	spgi	Annualized Dividend Rate Per Share AnnualizedDividendRatePerShare	2.28
CY2018	spgi	Annualized Dividend Rate Per Share AnnualizedDividendRatePerShare	2.00
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2019	spgi	Quarterly Dividend Rate Per Share QuarterlyDividendRatePerShare	0.57
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
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	118000000	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
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	64000000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2018	spgi	Quarterly Dividend Rate Per Share QuarterlyDividendRatePerShare	0.50
CY2017	spgi	Annualized Dividend Rate Per Share AnnualizedDividendRatePerShare	1.64
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	560000000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	503000000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	421000000	USD
CY2019	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	5900000	shares
CY2019Q1	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	400000	shares
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1240000000	USD
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	8400000	shares
CY2017	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	6800000	shares
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1660000000	USD
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.84
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.60
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1001000000	USD
CY2019	spgi	Interest In Joint Venture Minimum Percentage InterestInJointVentureMinimumPercentage	0.20
CY2019	spgi	Business Acquisition Agreement Terms Change Of Control Put Option For Minority Interest Ownership Effective Period BusinessAcquisitionAgreementTermsChangeOfControlPutOptionForMinorityInterestOwnershipEffectivePeriod	P15D
CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	1620000000	USD
CY2019	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	170000000	USD
CY2019	us-gaap	Noncontrolling Interest Increase From Subsidiary Equity Issuance NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance	36000000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	166000000	USD
CY2019	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	608000000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	2268000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	2123000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	1958000000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	1496000000	USD
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
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	256300000	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
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2600000	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
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	258900000	shares
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.65
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.80
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	2583000000	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
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	3226000000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	2790000000	USD
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.73
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.78
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	Segment
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
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6063000000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6258000000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6063000000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6063000000	USD
CY2018	spgi	Revenue Increase Decrease Due To Reevaluation RevenueIncreaseDecreaseDueToReevaluation	27000000	USD
CY2017	spgi	Revenue Increase Decrease Due To Reevaluation RevenueIncreaseDecreaseDueToReevaluation	25000000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	204000000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	206000000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	180000000	USD
CY2019	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	115000000	USD
CY2018	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	113000000	USD
CY2017	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	123000000	USD
CY2019Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	9000000	USD
CY2018Q4	us-gaap	Assets Of Disposal Group Including Discontinued Operation Current AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent	14000000	USD
CY2019Q4	us-gaap	Assets Assets	11348000000	USD
CY2018Q4	us-gaap	Assets Assets	9441000000	USD
CY2019	spgi	Maximum Percentage Of Consolidated Revenue Represented By Foreign Countries MaximumPercentageOfConsolidatedRevenueRepresentedByForeignCountries	0.08
CY2019	spgi	Maximum Percentage Of Consolidated Revenue Represented By Single Customer MaximumPercentageOfConsolidatedRevenueRepresentedBySingleCustomer	0.10
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
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6063000000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	5406000000	USD
CY2018Q4	us-gaap	Noncurrent Assets NoncurrentAssets	5429000000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P12Y
	spgi	Lessee Operating Lease Periodof Optionsto Terminate Lease LesseeOperatingLeasePeriodofOptionstoTerminateLease	P1Y
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	676000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	112000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	620000000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	157000000	USD
CY2019	us-gaap	Sublease Income SubleaseIncome	18000000	USD
CY2019	us-gaap	Lease Cost LeaseCost	139000000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	146000000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	777000000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y11M12D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0393
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
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
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	133000000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	113000000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	98000000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	82000000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	65000000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	358000000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	849000000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	117000000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	732000000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1689000000	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
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CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	555000000	USD
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CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	541000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	2123000000	USD
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CY2018Q2	us-gaap	Profit Loss ProfitLoss	501000000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	535000000	USD
CY2018Q4	us-gaap	Profit Loss ProfitLoss	551000000	USD
CY2018Q1	us-gaap	Profit Loss ProfitLoss	534000000	USD
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.22
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.65
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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
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CY2018Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1609000000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1546000000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1536000000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6258000000	USD
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CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	672000000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	704000000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	704000000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	2790000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	2121000000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	491000000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	461000000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	495000000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	512000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	1958000000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.94
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.83
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.97
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.06
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.80
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CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.03
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.73
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CY2019	us-gaap	Operating Expenses OperatingExpenses	3522000000	USD
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	49000000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	3226000000	USD
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CY2019	us-gaap	Interest Expense InterestExpense	198000000	USD
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CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2930000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	627000000	USD
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CY2019	us-gaap	Profit Loss ProfitLoss	2303000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	180000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	2123000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	2421000000	USD
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CY2018	us-gaap	Cost Of Revenue CostOfRevenue	1698000000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1564000000	USD
CY2018	us-gaap	Depreciation Depreciation	84000000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2018	us-gaap	Operating Expenses OperatingExpenses	3468000000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	2790000000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	25000000	USD
CY2018	us-gaap	Interest Expense InterestExpense	134000000	USD
CY2018	spgi	Non Operating Intercompany Transactions NonOperatingIntercompanyTransactions	0	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2681000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	560000000	USD
CY2018	us-gaap	Income Loss From Subsidiaries Net Of Tax IncomeLossFromSubsidiariesNetOfTax	0	USD
CY2018	us-gaap	Profit Loss ProfitLoss	2121000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	163000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	1958000000	USD
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CY2017	us-gaap	Depreciation Depreciation	82000000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	98000000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	3480000000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	2583000000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	27000000	USD
CY2017	us-gaap	Interest Expense InterestExpense	149000000	USD
CY2017	spgi	Non Operating Intercompany Transactions NonOperatingIntercompanyTransactions	0	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2461000000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	823000000	USD
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CY2017	us-gaap	Profit Loss ProfitLoss	1638000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	142000000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	1496000000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1762000000	USD
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CY2019Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	20000000	USD
CY2019Q4	us-gaap	Short Term Investments ShortTermInvestments	28000000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1577000000	USD
CY2019Q4	spgi	Intercompany Receivable IntercompanyReceivable	0	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	221000000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	4712000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	320000000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	676000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	3575000000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1424000000	USD
CY2019Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	0	USD
CY2019Q4	spgi	Intercompany Loans Receivable IntercompanyLoansReceivable	0	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	641000000	USD
CY2019Q4	us-gaap	Assets Assets	11348000000	USD
CY2019Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	190000000	USD
CY2019Q4	spgi	Intercompany Payable IntercompanyPayable	0	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	446000000	USD
CY2019Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	68000000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	1928000000	USD
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CY2019Q4	us-gaap	Liabilities Current LiabilitiesCurrent	3093000000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3948000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	620000000	USD
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CY2019Q4	us-gaap	Liabilities Liabilities	8544000000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	3535000000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1524000000	USD
CY2018Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	0	USD
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CY2018Q4	us-gaap	Assets Assets	9441000000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	162000000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	3587000000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	270000000	USD
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	0	USD
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CY2019Q4	us-gaap	Common Stock Value CommonStockValue	294000000	USD
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CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	12299000000	USD
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CY2018Q4	us-gaap	Short Term Investments ShortTermInvestments	18000000	USD
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CY2018Q4	spgi	Intercompany Receivable IntercompanyReceivable	0	USD
CY2018Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	211000000	USD
CY2018Q4	spgi	Intercompany Payable IntercompanyPayable	0	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	354000000	USD
CY2018Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	73000000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	1641000000	USD
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CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2630000000	USD
CY2018Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3662000000	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
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CY2018Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	229000000	USD
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CY2018Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	1620000000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	294000000	USD
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CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	11041000000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	628000000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	56000000	USD
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CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	18000000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	46000000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	78000000	USD
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CY2019	us-gaap	Pension Expense Reversal Of Expense Noncash PensionExpenseReversalOfExpenseNoncash	85000000	USD
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CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	135000000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	81000000	USD
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CY2019	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	256000000	USD
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CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-41000000	USD
CY2019	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	17000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2776000000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	115000000	USD
CY2019	spgi	Paymentsto Acquire Businesses Including Contingent Payments Netof Cash Acquired PaymentstoAcquireBusinessesIncludingContingentPaymentsNetofCashAcquired	91000000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	85000000	USD
CY2019	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	10000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-131000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	1086000000	USD
CY2019	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	868000000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	560000000	USD
CY2019	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	143000000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1240000000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	40000000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	66000000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	81000000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	94000000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	1000000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-52000000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	164000000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	1000000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-106000000	USD
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	70000000	USD
CY2018	us-gaap	Payments For Legal Settlements PaymentsForLegalSettlements	108000000	USD
CY2018	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-67000000	USD
CY2018	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-7000000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	129000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2064000000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2779000000	USD
CY2019	spgi	Intercompany Financing Transactions IntercompanyFinancingTransactions	0	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1751000000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	34000000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	928000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1958000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2886000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	2121000000	USD
CY2018	us-gaap	Depreciation Depreciation	84000000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	122000000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	21000000	USD
CY2018	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	113000000	USD
CY2018	spgi	Paymentsto Acquire Businesses Including Contingent Payments Netof Cash Acquired PaymentstoAcquireBusinessesIncludingContingentPaymentsNetofCashAcquired	401000000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	6000000	USD
CY2018	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	5000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-513000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	489000000	USD
CY2018	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	403000000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	503000000	USD
CY2018	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	154000000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1660000000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	34000000	USD
CY2018	us-gaap	Payments For Previous Acquisition PaymentsForPreviousAcquisition	25000000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	66000000	USD
CY2018	spgi	Intercompany Financing Transactions IntercompanyFinancingTransactions	0	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2288000000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-84000000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-821000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1958000000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	1638000000	USD
CY2017	us-gaap	Depreciation Depreciation	82000000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	98000000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	16000000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	99000000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	55000000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-96000000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	196000000	USD
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-10000000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	75000000	USD
CY2017	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	85000000	USD
CY2017	us-gaap	Payments For Legal Settlements PaymentsForLegalSettlements	4000000	USD
CY2017	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-85000000	USD
CY2017	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	32000000	USD
CY2017	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	-15000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2016000000	USD
CY2017	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	123000000	USD
CY2017	spgi	Paymentsto Acquire Businesses Including Contingent Payments Netof Cash Acquired PaymentstoAcquireBusinessesIncludingContingentPaymentsNetofCashAcquired	83000000	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2000000	USD
CY2017	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	5000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-209000000	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	421000000	USD
CY2017	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	111000000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1001000000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	75000000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	49000000	USD
CY2017	spgi	Intercompany Financing Transactions IntercompanyFinancingTransactions	0	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1507000000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	87000000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	387000000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2392000000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2779000000	USD

Files In Submission

Name	View Source	Status
0000064040-20-000055-index-headers.html	Edgar Link	pending
0000064040-20-000055-index.html	Edgar Link	pending
0000064040-20-000055.txt	Edgar Link	pending
0000064040-20-000055-xbrl.zip	Edgar Link	pending
chart-0ac957f57931577a9fa.jpg	Edgar Link	pending
chart-30d863d8401d50dca4b.jpg	Edgar Link	pending
chart-5994f7ff31ce5f0c87c.jpg	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending
spgbarrgbposa20.jpg	Edgar Link	pending
spgi-20191231.xsd	Edgar Link	pending
spgi-20191231x10k.htm	Edgar Link	pending
spgi-20191231x10k_htm.xml	Edgar Link	completed
spgi-20191231_cal.xml	Edgar Link	unprocessable
spgi-20191231_def.xml	Edgar Link	unprocessable
spgi-20191231_lab.xml	Edgar Link	unprocessable
spgi-20191231_pre.xml	Edgar Link	unprocessable
spgi-ex1020x20191231xq4.htm	Edgar Link	pending
spgi-ex1026x20191231xq4.htm	Edgar Link	pending
spgi-ex1033x20191231xq4.htm	Edgar Link	pending
spgi-ex1055x20191231xq4.htm	Edgar Link	pending
spgi-ex21x20191231xq4.htm	Edgar Link	pending
spgi-ex23x20191231xq4.htm	Edgar Link	pending
spgi-ex311x20191231xq4.htm	Edgar Link	pending
spgi-ex312x20191231xq4.htm	Edgar Link	pending
spgi-ex32x20191231xq4.htm	Edgar Link	pending
spgi-ex416x20191231xq4.htm	Edgar Link	pending
spgi-ex49x20191231xq4.htm	Edgar Link	pending

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$SPGI
S&P Global Inc. Stock $spgi

2019 Q4 Form 10-K Financial Statement

#000006404020000055 Filed on February 10, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SPGI S&P Global Inc. Stock $spgi

2019 Q4 Form 10-K Financial Statement

#000006404020000055 Filed on February 10, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SPGI
S&P Global Inc. Stock $spgi