$MCO
MOODYS CORP /DE/ Stock $mco

$mco Overview Financials Valuation SEC Filings Company Website

2014 Q4 Form 10-K Financial Statement

#000119312515063352 Filed on February 26, 2015

Income Statement

Concept	2014 Q4	2014 Q2	2014 Q1
Revenue	$877.5M	$873.5M	$767.2M
YoY Change	12.62%	15.54%	4.84%
Cost Of Revenue	$255.5M	$222.1M	$216.0M
YoY Change	15.61%	12.68%	7.57%
Gross Profit	$622.0M	$651.4M	$551.2M
YoY Change	11.43%	16.55%	3.8%
Gross Profit Margin	70.88%	74.57%	71.85%
Selling, General & Admin	$250.3M	$217.4M	$195.1M
YoY Change	12.24%	17.51%	-14.05%
% of Gross Profit	40.24%	33.37%	35.4%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$27.00M	$22.30M	$23.10M
YoY Change	15.88%	-3.46%	-2.12%
% of Gross Profit	4.34%	3.42%	4.19%
Operating Expenses	$277.3M	$461.8M	$218.2M
YoY Change	12.59%	13.97%	-51.66%
Operating Profit	$344.7M	$411.7M	$333.0M
YoY Change	10.52%	17.36%	18.76%
Interest Expense	-$4.300M	-$26.00M	-$22.00M
YoY Change	-86.08%	165.31%	105.61%
% of Operating Profit	-1.25%	-6.32%	-6.61%
Other Income/Expense, Net	-$4.600M	$73.50M	$600.0K
YoY Change	-122.12%	-625.0%	-104.55%
Pretax Income	$335.8M	$485.2M	$311.6M
YoY Change	11.27%	44.06%	16.62%
Income Tax	$94.40M	$160.8M	$89.90M
% Of Pretax Income	28.11%	33.14%	28.85%
Net Earnings	$236.3M	$319.2M	$218.0M
YoY Change	14.32%	41.55%	15.71%
Net Earnings / Revenue	26.93%	36.54%	28.42%
Basic Earnings Per Share	$1.14	$1.51	$1.02
Diluted Earnings Per Share	$1.12	$1.48	$1.00
COMMON SHARES
Basic Shares Outstanding	213.7M shares	212.0M shares
Diluted Shares Outstanding		215.7M shares

Balance Sheet

Concept	2014 Q4	2014 Q2	2014 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.678B	$1.959B	$1.970B
YoY Change	-20.32%	18.66%	11.3%
Cash & Equivalents	$1.220B	$1.941B	$1.792B
Short-Term Investments	$458.0M	$182.0M	$177.0M
Other Short-Term Assets	$172.5M	$177.0M	$119.6M
YoY Change	50.79%	19.92%	46.93%
Inventory
Prepaid Expenses	$59.90M
Receivables	$792.4M	$758.3M	$737.9M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$2.686B	$2.944B	$2.946B
YoY Change	-9.51%	20.53%	16.88%
LONG-TERM ASSETS
Property, Plant & Equipment	$302.3M	$298.3M	$282.3M
YoY Change	8.47%	3.79%	-4.66%
Goodwill	$1.021B	$955.2M	$656.6M
YoY Change	53.5%	54.11%	5.26%
Intangibles	$345.5M	$310.5M	$212.8M
YoY Change	55.91%	53.71%	0.05%
Long-Term Investments	$70.00M	$62.00M	$40.00M
YoY Change	45.83%	77.14%	0.0%
Other Assets	$145.9M	$147.4M	$106.6M
YoY Change	30.15%	63.96%	6.49%
Total Long-Term Assets	$1.669B	$1.842B	$1.408B
YoY Change	43.19%	36.31%	1.2%
TOTAL ASSETS
Total Short-Term Assets	$2.686B	$2.944B	$2.946B
Total Long-Term Assets	$1.669B	$1.842B	$1.408B
Total Assets	$4.669B	$4.787B	$4.353B
YoY Change	6.23%	26.15%	11.31%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$19.40M	$20.40M	$16.50M
YoY Change	18.29%	36.91%	2.48%
Accrued Expenses	$339.0M	$235.0M	$165.0M
YoY Change	17.3%	24.34%	14.58%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.200B	$1.093B	$1.027B
YoY Change	5.12%	21.88%	1.37%
LONG-TERM LIABILITIES
Long-Term Debt	$2.547B	$2.105B	$2.098B
YoY Change	21.2%	31.12%	30.26%
Other Long-Term Liabilities	$430.9M	$354.7M	$355.0M
YoY Change	19.63%	-14.1%	-15.78%
Total Long-Term Liabilities	$2.978B	$2.459B	$2.453B
YoY Change	20.97%	21.87%	20.71%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.200B	$1.093B	$1.027B
Total Long-Term Liabilities	$2.978B	$2.459B	$2.453B
Total Liabilities	$4.626B	$3.990B	$3.854B
YoY Change	16.61%	22.44%	14.32%
SHAREHOLDERS EQUITY
Retained Earnings	$6.044B	$5.781B	$5.522B
YoY Change	14.0%	13.75%	12.64%
Common Stock	$383.9M	$385.0M	$371.2M
YoY Change	-5.4%	7.33%	8.28%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$6.384B	-$5.676B	$5.450B
YoY Change	20.01%	-217.12%	17.14%
Treasury Stock Shares	138.5M shares	131.7M shares	129.2M shares
Shareholders Equity	-$187.8M	$445.4M	$385.3M
YoY Change
Total Liabilities & Shareholders Equity	$4.669B	$4.787B	$4.353B
YoY Change	6.23%	26.15%	11.31%

Cashflow Statement

Concept	2014 Q4	2014 Q2	2014 Q1
OPERATING ACTIVITIES
Net Income	$236.3M	$319.2M	$218.0M
YoY Change	14.32%	41.55%	15.71%
Depreciation, Depletion And Amortization	$27.00M	$22.30M	$23.10M
YoY Change	15.88%	-3.46%	-2.12%
Cash From Operating Activities	$308.8M	$280.8M	$177.2M
YoY Change	12.99%	68.65%	-12.54%
INVESTING ACTIVITIES
Capital Expenditures	-$17.80M	-$19.70M	$19.10M
YoY Change	57.52%	107.37%	122.09%
Acquisitions
YoY Change
Other Investing Activities	-$302.5M	-$11.50M	-$63.10M
YoY Change	988.13%	71.64%	-1187.93%
Cash From Investing Activities	-$320.3M	-$31.20M	-$82.20M
YoY Change	719.18%	92.59%	2835.71%
FINANCING ACTIVITIES
Cash Dividend Paid			$59.90M
YoY Change			34.61%
Common Stock Issuance & Retirement, Net			$201.6M
YoY Change			120.81%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-671.1M	-279.1M	-$222.1M
YoY Change	331.3%	3.29%	42.37%
NET CHANGE
Cash From Operating Activities	308.8M	280.8M	$177.2M
Cash From Investing Activities	-320.3M	-31.20M	-$82.20M
Cash From Financing Activities	-671.1M	-279.1M	-$222.1M
Net Change In Cash	-682.6M	-29.50M	-$127.1M
YoY Change	-968.45%	-75.4%	-390.18%
FREE CASH FLOW
Cash From Operating Activities	$308.8M	$280.8M	$177.2M
Capital Expenditures	-$17.80M	-$19.70M	$19.10M
Free Cash Flow	$326.6M	$300.5M	$158.1M
YoY Change	14.76%	70.74%	-18.51%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012	us-gaap	Direct Operating Costs DirectOperatingCosts	795000000	USD
CY2012	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	752200000	USD
CY2012	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	10400000	USD
CY2014	dei	Entity Registrant Name EntityRegistrantName	MOODYS CORP /DE/
CY2014Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	213700000	shares
CY2014	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2014
CY2014	dei	Trading Symbol TradingSymbol	MCO
CY2014Q4	dei	Entity Public Float EntityPublicFloat	18500000000	USD
CY2013	us-gaap	Revenues Revenues	2972500000	USD
CY2012	us-gaap	Revenues Revenues	2730300000	USD
CY2014	us-gaap	Direct Operating Costs DirectOperatingCosts	930300000	USD
CY2014	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2014	dei	Amendment Flag AmendmentFlag	false
CY2014	dei	Document Period End Date DocumentPeriodEndDate	2014-12-31
CY2013	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	11400000	USD
CY2014Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	6044300000	USD
CY2013	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	353400000	USD
CY2014	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	747700000	USD
CY2014	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	300000000	USD
CY2013Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	112100000	USD
CY2014	us-gaap	Revenues Revenues	3334300000	USD
CY2014	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	869300000	USD
CY2014	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss		USD
CY2014	us-gaap	Depreciation And Amortization DepreciationAndAmortization	95600000	USD
CY2014	us-gaap	Operating Expenses OperatingExpenses	1895200000	USD
CY2014	us-gaap	Operating Income Loss OperatingIncomeLoss	1439100000	USD
CY2014	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	35900000	USD
CY2014	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	21900000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1461000000	USD
CY2014	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	455000000	USD
CY2014	us-gaap	Profit Loss ProfitLoss	1006000000	USD
CY2014	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	17300000	USD
CY2014	us-gaap	Net Income Loss NetIncomeLoss	988700000	USD
CY2014	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.69
CY2014	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.61
CY2014	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	210700000	shares
CY2014	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	214700000	shares
CY2013	us-gaap	Direct Operating Costs DirectOperatingCosts	822400000	USD
CY2013	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	822100000	USD
CY2013	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss		USD
CY2013	us-gaap	Depreciation And Amortization DepreciationAndAmortization	93400000	USD
CY2013	us-gaap	Operating Expenses OperatingExpenses	1737900000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	1234600000	USD
CY2013	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	26500000	USD
CY2013	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-65300000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1169300000	USD
CY2013	us-gaap	Profit Loss ProfitLoss	815900000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	804500000	USD
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.67
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.6
CY2013	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	219400000	shares
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	223500000	shares
CY2012	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	12200000	USD
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	93500000	USD
CY2012	us-gaap	Operating Expenses OperatingExpenses	1652900000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	1077400000	USD
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-53400000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1024000000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	324300000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	699700000	USD
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	9700000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	690000000	USD
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.09
CY2014	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-155300000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	7300000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-204200000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-23600000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-180600000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	825400000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	17300000	USD
CY2014	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	808100000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-15800000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	35400000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	10000000	USD
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.05
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	223200000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	226600000	shares
CY2013	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	55900000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	27500000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	-21000000	USD
CY2013Q4	us-gaap	Other Assets Current OtherAssetsCurrent	114400000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	19600000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-6800000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	26400000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	715400000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	10700000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	832000000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	11400000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	11900000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	28400000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	843400000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	726100000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-93800000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	37100000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	-56700000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	29900000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	50900000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax	-14800000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax	11200000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-26000000	USD
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1219500000	USD
CY2014Q4	us-gaap	Short Term Investments ShortTermInvestments	458100000	USD
CY2014Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	792400000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	43900000	USD
CY2014Q4	us-gaap	Other Assets Current OtherAssetsCurrent	172500000	USD
CY2014Q4	us-gaap	Assets Current AssetsCurrent	2686400000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	302300000	USD
CY2014Q4	us-gaap	Goodwill Goodwill	1021100000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	167800000	USD
CY2014Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	145900000	USD
CY2014Q4	us-gaap	Assets Assets	4669000000	USD
CY2013Q4	us-gaap	Assets Assets	4395100000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	148700000	USD
CY2013Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	221600000	USD
CY2013Q4	us-gaap	Goodwill Goodwill	665200000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	278700000	USD
CY2013Q4	us-gaap	Assets Current AssetsCurrent	2968800000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	53900000	USD
CY2013Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	694200000	USD
CY2013Q4	us-gaap	Short Term Investments ShortTermInvestments	186800000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1919500000	USD
CY2014Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	557600000	USD
CY2014Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	624600000	USD
CY2014Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1199700000	USD
CY2014Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	132200000	USD
CY2014Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2547300000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	95700000	USD
CY2014Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	220300000	USD
CY2014Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	430900000	USD
CY2014Q4	us-gaap	Liabilities Liabilities	4626100000	USD
CY2013Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1141300000	USD
CY2014Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2014Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount		USD
CY2013Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	538900000	USD
CY2013Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	598400000	USD
CY2013Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2101800000	USD
CY2013Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	109200000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	59100000	USD
CY2013Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	195600000	USD
CY2013Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	360200000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	3967200000	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2013Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	80000000	USD
CY2014Q4	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2014Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4669000000	USD
CY2014Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	42900000	USD
CY2014Q4	us-gaap	Minority Interest MinorityInterest	230700000	USD
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	-187800000	USD
CY2014Q4	us-gaap	Treasury Stock Value TreasuryStockValue	6384200000	USD
CY2014Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	383900000	USD
CY2013Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2013Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	405800000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	5302100000	USD
CY2013Q4	us-gaap	Treasury Stock Value TreasuryStockValue	5319700000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-54600000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	337000000	USD
CY2013Q4	us-gaap	Minority Interest MinorityInterest	10900000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	347900000	USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4395100000	USD
CY2014Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	29400000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	28900000	USD
CY2013Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2014Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2013Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2013Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2013Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2014Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2014Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2014Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2014Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	138539128	shares
CY2014Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	451500000	USD
CY2013Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	375700000	USD
CY2014	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	239700000	USD
CY2014	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-564900000	USD
CY2014	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	98000000	USD
CY2014	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	58700000	USD
CY2013	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	63800000	USD
CY2014	us-gaap	Payments Of Dividends PaymentsOfDividends	236000000	USD
CY2014	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1220500000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	30900000	USD
CY2013	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	66100000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	30900000	USD
CY2014	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	11800000	USD
CY2014	us-gaap	Payments Of Merger Related Costs Financing Activities PaymentsOfMergerRelatedCostsFinancingActivities	10300000	USD
CY2014	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	6500000	USD
CY2014	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1064500000	USD
CY2014	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-89200000	USD
CY2014	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-700000000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	67100000	USD
CY2013	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-27200000	USD
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	38800000	USD
CY2013	mco	Legacy Tax Liabilities LegacyTaxLiabilities	19200000	USD
CY2013	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	67000000	USD
CY2013	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	21700000	USD
CY2013	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	700000	USD
CY2013	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-2900000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	926800000	USD
CY2013	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	42300000	USD
CY2013	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	225900000	USD
CY2013	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	57000000	USD
CY2013	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	50700000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-261900000	USD
CY2013	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	497200000	USD
CY2013	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	136000000	USD
CY2013	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	38800000	USD
CY2013	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	893100000	USD
CY2013	us-gaap	Payments Of Dividends PaymentsOfDividends	197300000	USD
CY2013	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	12200000	USD
CY2013	us-gaap	Payments Of Merger Related Costs Financing Activities PaymentsOfMergerRelatedCostsFinancingActivities	300000	USD
CY2013	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	4100000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-498800000	USD
CY2013	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-2000000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	164100000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	64500000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	36100000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	15700000	USD
CY2012	mco	Legacy Tax Liabilities LegacyTaxLiabilities	12800000	USD
CY2012	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	128200000	USD
CY2012	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	14100000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-5100000	USD
CY2012	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	101700000	USD
CY2012	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	20900000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	-49200000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	9400000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	823100000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	45000000	USD
CY2012	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	56200000	USD
CY2012	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	54500000	USD
CY2012	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	3500000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-50200000	USD
CY2012	us-gaap	Proceeds From Notes Payable ProceedsFromNotesPayable	496100000	USD
CY2012	us-gaap	Repayments Of Notes Payable RepaymentsOfNotesPayable	71300000	USD
CY2012	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	116700000	USD
CY2012	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	15700000	USD
CY2012	us-gaap	Payments Of Merger Related Costs Financing Activities PaymentsOfMergerRelatedCostsFinancingActivities	500000	USD
CY2012	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	6300000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	202600000	USD
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	19900000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	995400000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1755400000	USD
CY2012	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	196500000	USD
CY2012	us-gaap	Payments Of Dividends PaymentsOfDividends	143000000	USD
CY2012	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	8300000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	760000000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-158400000	USD
CY2012	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	696100000	USD
CY2012	us-gaap	Dividends Dividends	-157500000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	64600000	USD
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	116600000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	10300000	USD
CY2012	mco	Excess Of Consideration Paid Over Carrying Value Of Additional Investment ExcessOfConsiderationPaidOverCarryingValueOfAdditionalInvestment	-3400000	USD
CY2012	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	-196500000	USD
CY2012	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	33600000	USD
CY2012	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	100000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	396600000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	200000	USD
CY2012	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesTaxPortionAttributableToParent	100000	USD
CY2013	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	810200000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	67200000	USD
CY2013	us-gaap	Dividends Dividends	-221900000	USD
CY2013	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	136000000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	33300000	USD
CY2013	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	-893100000	USD
CY2013	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-13800000	USD
CY2013	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	4400000	USD
CY2013	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesTaxPortionAttributableToParent	3100000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	600000	USD
CY2014	us-gaap	Net Income Loss Attributable To Redeemable Noncontrolling Interest NetIncomeLossAttributableToRedeemableNoncontrollingInterest	996600000	USD
CY2014	us-gaap	Dividends Dividends	-253400000	USD
CY2014	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	80600000	USD
CY2014	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	-1220500000	USD
CY2014	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	98000000	USD
CY2014	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	54700000	USD
CY2014	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-148700000	USD
CY2014	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	19400000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	600000	USD
CY2014	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesTaxPortionAttributableToParent	3100000	USD
CY2014	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	pure
CY2014	us-gaap	Nature Of Operations NatureOfOperations	<div><p style='text-align:left;margin-top:0pt;margin-bottom:10pt;line-height:13.8pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0pt;' >NOTE 1 DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION</font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:0pt;line-height:13.8pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >Moody’s is a provider of (</font><font style='font-family:Times New Roman;font-size:10pt;' >i</font><font style='font-family:Times New Roman;font-size:10pt;' >) credit ratings, (ii) credit, capital markets and economic research, data and analytical tools, (iii) software solutions and related risk management services, </font><font style='font-family:Times New Roman;font-size:10pt;' >(iv) quantitative credit risk measures, financial services training and certification services and (v) outsourced research and analytical services to insti</font><font style='font-family:Times New Roman;font-size:10pt;' >tutional customers. Moody’s has </font><font style='font-family:Times New Roman;font-size:10pt;' >two</font><font style='font-family:Times New Roman;font-size:10pt;' > </font><font style='font-family:Times New Roman;font-size:10pt;' >reportable segments: MIS and MA.</font></p><p style='text-align:left;margin-top:4.5pt;margin-bottom:0pt;line-height:13.8pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >MIS, th</font><font style='font-family:Times New Roman;font-size:10pt;' >e credit rating agency, publishes credit ratings on a wide range of debt obligations and the entities that issue such obligations in markets worldwide. Revenue is primarily derived from the originators and issuers of such transactions who use MIS ratings i</font><font style='font-family:Times New Roman;font-size:10pt;' >n the distribution of their debt issues to investors. </font><font style='font-family:Times New Roman;font-size:10pt;' >Additionally, MIS earns revenue from certain non-ratings-related operations which consist primarily of the distribution of research and fixed income pricing services in the Asia-Pacific region</font><font style='font-family:Times New Roman;font-size:10pt;' > and outsourced services</font><font style='font-family:Times New Roman;font-size:10pt;' >. The r</font><font style='font-family:Times New Roman;font-size:10pt;' >evenue from these operations is included in the MIS Other LOB and is not material to the results of the MIS segment.</font><font style='font-family:Times New Roman;font-size:10pt;' > </font></p><p style='text-align:left;margin-top:9pt;margin-bottom:0pt;line-height:13.8pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >The MA segment develops a wide range of products and services that support financial analysis and risk management activities of instituti</font><font style='font-family:Times New Roman;font-size:10pt;' >onal participants in global financial markets</font><font style='font-family:Times New Roman;font-size:10pt;' >. Within its Research, Data and Analytics business, MA distributes research and data developed by MIS as part of its ratings process, including in-depth research on major debt issuers, industry studies and comme</font><font style='font-family:Times New Roman;font-size:10pt;' >ntary on topical credit-related events. The RD&A business also produces economic research as well as data and analytical tools such as quantitative credit risk scores. Within its Enterprise Risk Solutions bu</font><font style='font-family:Times New Roman;font-size:10pt;' >siness</font><font style='font-family:Times New Roman;font-size:10pt;' >, MA provides software solutions as well as related risk management services. The Professional Services business provides outsourced research and analytical services along with financial training and certification programs.</font></p></div>
CY2014	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	37900000	USD
CY2013	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	22800000	USD
CY2012	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	16100000	USD
CY2014Q4	mco	Deferred Revenue Related To Rated Securities DeferredRevenueRelatedToRatedSecurities	107000000	USD
CY2013Q4	mco	Deferred Revenue Related To Rated Securities DeferredRevenueRelatedToRatedSecurities	97000000	USD
CY2012Q4	mco	Deferred Revenue Related To Rated Securities DeferredRevenueRelatedToRatedSecurities	82000000	USD
CY2012Q4	mco	Accounts Receivable Related To Commercial Paper AccountsReceivableRelatedToCommercialPaper	22000000	USD
CY2013Q4	mco	Accounts Receivable Related To Commercial Paper AccountsReceivableRelatedToCommercialPaper	21000000	USD
CY2014Q4	mco	Accounts Receivable Related To Commercial Paper AccountsReceivableRelatedToCommercialPaper	22000000	USD
CY2014	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	10	pure
CY2013	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	10	pure
CY2014	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	67200000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	65400000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	63400000	USD
CY2014	us-gaap	Use Of Estimates UseOfEstimates	<div><p style='text-align:left;margin-top:0pt;margin-bottom:10pt;line-height:13.8pt;' ><font style='font-family:Times New Roman;font-size:10pt;font-weight:bold;margin-left:0pt;' >Use of Estimates</font></p><p style='text-align:left;margin-top:0pt;margin-bottom:10pt;line-height:13.8pt;' ><font style='font-family:Times New Roman;font-size:10pt;margin-left:0pt;' >The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities,</font><font style='font-family:Times New Roman;font-size:10pt;' > the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the period. Actual results could differ from those estimates. Estimates are used for, but not limited to, </font><font style='font-family:Times New Roman;font-size:10pt;' >revenue recognition, accounts receivable allowances, income taxes, contingencies, valuation of long-lived and intangible assets, goodwill, pension and other retirement benefits, stock-based compensation, and </font><font style='font-family:Times New Roman;font-size:10pt;' >depreciable lives</font><font style='font-family:Times New Roman;font-size:10pt;' > for property and equipment and</font><font style='font-family:Times New Roman;font-size:10pt;' > computer software.</font></p></div>
CY2014	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	4000000	shares
CY2013	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	4100000	shares
CY2014	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	700000	shares
CY2013	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	4000000	shares
CY2012	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3400000	shares
CY2012	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	7500000	shares
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	41800000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	20500000	USD
CY2013Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	1700000	USD
CY2014Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	2100000	USD
CY2014Q4	mco	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Hedging Activities Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromHedgingActivitiesEffectNetOfTax	20900000	USD
CY2013Q4	mco	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Hedging Activities Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromHedgingActivitiesEffectNetOfTax	1500000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	152500000	USD
CY2014Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	43800000	USD
CY2014Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	220700000	USD
CY2014Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	753800000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Other PropertyPlantAndEquipmentOther	129700000	USD
CY2013Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	40600000	USD
CY2013Q4	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	199200000	USD
CY2013Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	654400000	USD
CY2014	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	28400000	USD
CY2013	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	28000000	USD
CY2012	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	30100000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	33500000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	31700000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	28100000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	22400000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	19500000	USD
CY2014Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	210300000	USD
CY2013Q3	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	1000000	USD
CY2014Q4	us-gaap	Derivative Assets DerivativeAssets	41800000	USD
CY2014Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	239500000	USD
CY2014Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	4200000	USD
CY2013Q4	us-gaap	Derivative Assets DerivativeAssets	20500000	USD
CY2013Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	232800000	USD
CY2013Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	19200000	USD
CY2014Q4	us-gaap	Minority Interest Ownership Percentage By Noncontrolling Owners MinorityInterestOwnershipPercentageByNoncontrollingOwners	0.33	pure
CY2014	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	-16500000	USD
CY2014	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues		USD
CY2014	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	1300000	USD
CY2014	mco	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Foreign Currency Translation Adjustments FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityForeignCurrencyTranslationAdjustments	-200000	USD
CY2012Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	9000000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	-2500000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	4300000	USD
CY2013	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	6900000	USD
CY2013	mco	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Foreign Currency Translation Adjustments FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityForeignCurrencyTranslationAdjustments	-200000	USD
CY2014Q4	us-gaap	Prepaid Taxes PrepaidTaxes	65400000	USD
CY2014Q4	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	59900000	USD
CY2014Q4	mco	Other Operating Assets OtherOperatingAssets	47200000	USD
CY2014Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	21600000	USD
CY2014Q4	us-gaap	Deposit Assets DepositAssets	11300000	USD
CY2014Q4	mco	Other Noncurrent Assets Other OtherNoncurrentAssetsOther	41500000	USD
CY2014Q4	mco	Customer Billings And Payments Received In Advance CustomerBillingsAndPaymentsReceivedInAdvance	17000000	USD
CY2014Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	75000000	USD
CY2014Q4	mco	Profit Sharing Contribution ProfitSharingContribution	9300000	USD
CY2014Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	86500000	USD
CY2014Q4	us-gaap	Accrued Bonuses Current And Noncurrent AccruedBonusesCurrentAndNoncurrent	155200000	USD
CY2014Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	47000000	USD
CY2014Q4	us-gaap	Interest Payable Current InterestPayableCurrent	45000000	USD
CY2014Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	19400000	USD
CY2014Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	21500000	USD
CY2014Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	16100000	USD
CY2014Q4	us-gaap	Deferred Rent Credit Current DeferredRentCreditCurrent		USD
CY2014Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	5100000	USD
CY2014Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	60500000	USD
CY2014Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	244800000	USD
CY2014Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	104200000	USD
CY2014Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	8600000	USD
CY2014Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	52500000	USD
CY2013Q4	us-gaap	Prepaid Taxes PrepaidTaxes	40000000	USD
CY2013Q4	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	48100000	USD
CY2013Q4	mco	Other Operating Assets OtherOperatingAssets	26300000	USD
CY2013Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	37500000	USD
CY2013Q4	us-gaap	Deposit Assets DepositAssets	10300000	USD
CY2013Q4	mco	Other Noncurrent Assets Other OtherNoncurrentAssetsOther	37300000	USD
CY2013Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	77100000	USD
CY2013Q4	us-gaap	Accrued Bonuses Current And Noncurrent AccruedBonusesCurrentAndNoncurrent	135900000	USD
CY2013Q4	mco	Profit Sharing Contribution ProfitSharingContribution		USD
CY2013Q4	mco	Customer Billings And Payments Received In Advance CustomerBillingsAndPaymentsReceivedInAdvance	21700000	USD
CY2013Q4	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	27600000	USD
CY2013Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	65500000	USD
CY2013Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	32900000	USD
CY2013Q4	us-gaap	Interest Payable Current InterestPayableCurrent	36300000	USD
CY2013Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	16400000	USD
CY2013Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	47500000	USD
CY2013Q4	us-gaap	Deferred Rent Credit Current DeferredRentCreditCurrent		USD
CY2013Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	7000000	USD
CY2013Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	71000000	USD
CY2013Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	164000000	USD
CY2013Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	106300000	USD
CY2013Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	15400000	USD
CY2013Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	56500000	USD
CY2013Q4	mco	Business Combination Indemnification Asset BusinessCombinationIndemnificationAsset	27000000	USD
CY2012Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	72300000	USD
CY2012	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaid	-9400000	USD
CY2012Q4	us-gaap	Self Insurance Reserve SelfInsuranceReserve	55800000	USD
CY2013	us-gaap	Increase Decrease In Self Insurance Reserve IncreaseDecreaseInSelfInsuranceReserve	-900000	USD
CY2013	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaid	-27300000	USD
CY2013Q4	us-gaap	Self Insurance Reserve SelfInsuranceReserve	27600000	USD
CY2014	us-gaap	Increase Decrease In Self Insurance Reserve IncreaseDecreaseInSelfInsuranceReserve	5800000	USD
CY2014	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaid	-11900000	USD
CY2014Q4	us-gaap	Self Insurance Reserve SelfInsuranceReserve	21500000	USD
CY2011Q4	us-gaap	Self Insurance Reserve SelfInsuranceReserve	27100000	USD
CY2014Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	461800000	USD
CY2014Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	396300000	USD
CY2014Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	248400000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	347100000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	298500000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	204600000	USD
CY2012	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit		USD
CY2014	us-gaap	Defined Benefit Plan Actual Return On Plan Assets Still Held DefinedBenefitPlanActualReturnOnPlanAssetsStillHeld	1600000	USD
CY2014	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases Sales Issuances Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements	600000	USD
CY2013Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	520000	shares
CY2014Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	490000	shares
CY2014	us-gaap	Employee Stock Ownership Plan Esop Dividends Paid To Esop EmployeeStockOwnershipPlanESOPDividendsPaidToESOP	600000	USD
CY2013	us-gaap	Employee Stock Ownership Plan Esop Dividends Paid To Esop EmployeeStockOwnershipPlanESOPDividendsPaidToESOP	500000	USD
CY2014	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	27500000	USD
CY2013	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	24700000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	23300000	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0141	pure
CY2012	us-gaap	Increase Decrease In Self Insurance Reserve IncreaseDecreaseInSelfInsuranceReserve	38100000	USD
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.41	pure
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.023	pure
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	31.53
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	17.58
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0172	pure
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0153	pure
CY2013	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.43	pure
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	15.19
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0155	pure
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0166	pure
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.44	pure
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y2M12D
CY2013	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y2M12D
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P7Y4M24D
CY2014Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	252600000	USD
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	295600000	USD
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	299500000	USD
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	44.79
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	45.84
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	46
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	0
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	46.4
CY2014	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	79.57
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	45
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	5000000	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	5900000	shares
CY2014Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6000000	shares
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod		shares
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod		shares
CY2014	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	-3200000	shares
CY2014	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	300000	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	8900000	shares
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y4M6D
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P4Y1M3D
CY2014	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y4M24D
CY2014	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	252800000	USD
CY2014	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	70200000	USD
CY2014	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	102100000	USD
CY2014	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	425100000	USD
CY2013	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	96800000	USD
CY2013	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	226200000	USD
CY2013	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	380600000	USD
CY2013	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	57600000	USD
CY2012	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	168100000	USD
CY2012	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	33700000	USD
CY2012	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	288200000	USD
CY2012	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	86400000	USD
CY2012	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	35700000	USD
CY2012	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	4500000	USD
CY2012	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-4100000	USD
CY2013	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-13100000	USD
CY2013	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-5600000	USD
CY2013	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-8500000	USD
CY2014	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	900000	USD
CY2014	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	4900000	USD
CY2014	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	24100000	USD
CY2014	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2014	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	3.6	pure
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-7.4	pure
CY2014	mco	Effective Income Tax Rate Reconciliation Legacy Tax Items EffectiveIncomeTaxRateReconciliationLegacyTaxItems	-0.2	pure
CY2014	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.1	pure
CY2014	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.311	pure
CY2014	us-gaap	Income Taxes Paid IncomeTaxesPaid	369400000	USD
CY2013	us-gaap	Income Taxes Paid IncomeTaxesPaid	335700000	USD
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-6.4	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.7	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2013	mco	Effective Income Tax Rate Reconciliation Legacy Tax Items EffectiveIncomeTaxRateReconciliationLegacyTaxItems	-0.6	pure
CY2013	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.302	pure
CY2013	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	2.9	pure
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	293300000	USD
CY2012	mco	Effective Income Tax Rate Reconciliation Legacy Tax Items EffectiveIncomeTaxRateReconciliationLegacyTaxItems	-0.4	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-6.1	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2012	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.317	pure
CY2012	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.8	pure
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	694200000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	329800000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	836100000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	333200000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	548400000	USD
CY2014	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	912600000	USD
CY2014Q4	mco	Deferred Tax Asset Net DeferredTaxAssetNet	348100000	USD
CY2013Q4	mco	Deferred Tax Asset Net DeferredTaxAssetNet	332000000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	139500000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	98400000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	147900000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	6900000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	105300000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	8400000	USD
CY2014Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	2032000000	USD
CY2014Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Contingencies DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies	220300000	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	157100000	USD
CY2013Q4	mco	Unrecognized Tax Benefits Accrued Interest On Income Taxes Current And Noncurrent UnrecognizedTaxBenefitsAccruedInterestOnIncomeTaxesCurrentAndNoncurrent	17900000	USD
CY2014Q4	mco	Unrecognized Tax Benefits Accrued Interest On Income Taxes Current And Noncurrent UnrecognizedTaxBenefitsAccruedInterestOnIncomeTaxesCurrentAndNoncurrent	20800000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	52500000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	8700000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-13000000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	-18800000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	-4700000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	18900000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	-4700000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	49100000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Contingencies DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies	156600000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-20600000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	-91500000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Contingencies DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies	205400000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	-21400000	USD
CY2013Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Contingencies DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies	195600000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	6100000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	67800000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	-3400000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-10100000	USD
CY2014Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent		USD
CY2013Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent		USD
CY2014Q4	us-gaap	Commercial Paper CommercialPaper		USD
CY2013Q4	us-gaap	Commercial Paper CommercialPaper		USD
CY2014Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	2547300000	USD
CY2013Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	2101800000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths		USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo		USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	300000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour		USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	450000000	USD
CY2014Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1800000000	USD
CY2014	us-gaap	Investment Income Interest InvestmentIncomeInterest	6700000	USD
CY2013	us-gaap	Investment Income Interest InvestmentIncomeInterest	5500000	USD
CY2012	us-gaap	Investment Income Interest InvestmentIncomeInterest	5200000	USD
CY2014	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	118400000	USD
CY2014	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	20300000	USD
CY2013	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	92300000	USD
CY2012	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	73800000	USD
CY2014	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	5800000	USD
CY2013	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	8600000	USD
CY2012	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-400000	USD
CY2014	mco	Interest Income Expense Legacy Tax InterestIncomeExpenseLegacyTax	700000	USD
CY2013	mco	Interest Income Expense Legacy Tax InterestIncomeExpenseLegacyTax	3600000	USD
CY2012	mco	Interest Income Expense Legacy Tax InterestIncomeExpenseLegacyTax	4400000	USD
CY2014	us-gaap	Interest Paid InterestPaid	113700000	USD
CY2013	us-gaap	Interest Paid InterestPaid	81900000	USD
CY2012	us-gaap	Interest Paid InterestPaid	94400000	USD
CY2013Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2101800000	USD
CY2013Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	2188700000	USD
CY2014Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2547300000	USD
CY2014Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	2772700000	USD
CY2014Q4	mco	All Classes Of Stock Shares Authorized AllClassesOfStockSharesAuthorized	1020000000	shares
CY2012	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.64
CY2012Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.16
CY2012Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.16
CY2012Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.16
CY2011Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.16
CY2014	us-gaap	Dividends Payable Date Declared Day Month And Year DividendsPayableDateDeclaredDayMonthAndYear	2014-12-16
CY2014	us-gaap	Dividend Payable Date To Be Paid Day Month And Year DividendPayableDateToBePaidDayMonthAndYear	2015-03-10
CY2014	us-gaap	Dividends Payable Date Of Record Day Month And Year DividendsPayableDateOfRecordDayMonthAndYear	2015-02-20
CY2014	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.12
CY2013Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2
CY2013Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2
CY2013Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.25
CY2013Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.25
CY2014Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.28
CY2014Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.28
CY2014Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.28
CY2014Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.28
CY2013	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.9
CY2014Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.62
CY2014Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
CY2014Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.28
CY2014Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.28
CY2014	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.18
CY2013Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
CY2013Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.2
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CY2013Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.53
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.98
CY2012Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
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CY2012Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.16
CY2011Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.36
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.68
CY2014	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	83900000	USD
CY2013	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	74200000	USD
CY2012	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	75800000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	93400000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	80900000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	78300000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	72700000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	64900000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	447300000	USD
CY2014Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	837500000	USD
CY2014Q4	us-gaap	Capital Leases Future Minimum Sublease Rentals CapitalLeasesFutureMinimumSubleaseRentals	3700000	USD
CY2014Q1	mco	Number Of Plaintiffs Ordered To Trial NumberOfPlaintiffsOrderedToTrial	14	pure
CY2014	mco	Direct Operating Costs Selling General And Administrative Expense DirectOperatingCostsSellingGeneralAndAdministrativeExpense	1799600000	USD
CY2014	mco	Adjusted Operating Income AdjustedOperatingIncome	1534700000	USD
CY2013	mco	Adjusted Operating Income AdjustedOperatingIncome	1328000000	USD
CY2013	mco	Direct Operating Costs Selling General And Administrative Expense DirectOperatingCostsSellingGeneralAndAdministrativeExpense	1644500000	USD
CY2012	mco	Adjusted Operating Income AdjustedOperatingIncome	1183100000	USD
CY2012	mco	Direct Operating Costs Selling General And Administrative Expense DirectOperatingCostsSellingGeneralAndAdministrativeExpense	1547200000	USD
CY2014	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	pure
CY2014Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	1668900000	USD
CY2013Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	1165500000	USD
CY2012Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	1170700000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	-29100000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	-15200000	USD
CY2011Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	-28000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	-13900000	USD
CY2013	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax		USD
CY2012	mco	Other Non Operating Income Expense Other OtherNonOperatingIncomeExpenseOther	-1300000	USD
CY2012	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-5900000	USD
CY2013	mco	Other Non Operating Income Expense Other OtherNonOperatingIncomeExpenseOther	-1500000	USD
CY2014	mco	Other Non Operating Income Expense Other OtherNonOperatingIncomeExpenseOther	-400000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	4800000	USD
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	8800000	USD
CY2014	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	9600000	USD
CY2014Q3	us-gaap	Revenues Revenues	816100000	USD
CY2014Q4	us-gaap	Revenues Revenues	877500000	USD
CY2013Q4	us-gaap	Revenues Revenues	779200000	USD
CY2014Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	349700000	USD
CY2014Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	344700000	USD
CY2013Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	311900000	USD
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CY2014Q4	us-gaap	Net Income Loss NetIncomeLoss	236300000	USD
CY2013Q4	us-gaap	Net Income Loss NetIncomeLoss	206700000	USD
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CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.94
CY2014Q1	us-gaap	Net Income Loss NetIncomeLoss	218000000	USD
CY2014Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	333000000	USD
CY2014Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1
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CY2014Q1	us-gaap	Revenues Revenues	767200000	USD
CY2014Q2	us-gaap	Net Income Loss NetIncomeLoss	319200000	USD
CY2014Q2	us-gaap	Revenues Revenues	873500000	USD
CY2014Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.48
CY2014Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	411700000	USD
CY2014Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.51
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.84
CY2013Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	280400000	USD
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.83
CY2013Q1	us-gaap	Net Income Loss NetIncomeLoss	188400000	USD
CY2013Q1	us-gaap	Revenues Revenues	731800000	USD
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1
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CY2013Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	350800000	USD
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CY2013Q3	us-gaap	Net Income Loss NetIncomeLoss	183900000	USD
CY2013Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	291500000	USD
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CY2013Q3	us-gaap	Revenues Revenues	705500000	USD
CY2014Q4	mco	Litigationsettlement Litigationsettlement	0.14
CY2014	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain	102800000	USD
CY2013	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain	0	USD
CY2012	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain	0	USD
CY2014	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-2800000	USD
CY2012	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-4100000	USD
CY2013Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	4000000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	21000000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	11200000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditTax	21000000	USD
CY2013	mco	Net Interest Income Expense NetInterestIncomeExpense	-91800000	USD
CY2012	mco	Net Interest Income Expense NetInterestIncomeExpense	-63800000	USD
CY2014	dei	Document Type DocumentType	10-K
CY2014	dei	Entity Central Index Key EntityCentralIndexKey	0001059556
CY2014	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2014	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2014	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2014Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	2100000	USD
CY2013Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	1700000	USD
CY2014Q4	us-gaap	Long Term Investments LongTermInvestments	48000000	USD
CY2013Q4	us-gaap	Long Term Investments LongTermInvestments	0	USD
CY2014Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0	USD
CY2013Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0	USD
CY2014	us-gaap	Translation Adjustment Functional To Reporting Currency Loss Gain On Reclassified Of Earnings Net Of Tax TranslationAdjustmentFunctionalToReportingCurrencyLossGainOnReclassifiedOfEarningsNetOfTax	-4400000	USD
CY2014	mco	Notes Due Description NotesDueDescription	(i) the fourth anniversary date of the note or (ii) within a time frame set forth in the acquisition agreement relating to the resolution of certain income tax uncertainties pertaining to the transaction
CY2014Q4	mco	Shares Of All Classes Of Stock Par Value SharesOfAllClassesOfStockParValue	0.01
CY2014Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-235200000	USD
CY2014Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	17500000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	32300000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	12900000	USD
CY2014	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	19400000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	0	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	0	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	0	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	6300000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	2600000	USD
CY2013	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	3700000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	1200000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	500000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	700000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-3900000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-1600000	USD
CY2012	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-2300000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	4100000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	1700000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	2400000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax	4400000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	0	USD
CY2014	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	4400000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax	1400000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	0	USD
CY2013	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	1400000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	USD
CY2014Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	336800000	USD
CY2013Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	284900000	USD
CY2014Q4	mco	Business Combination Indemnification Asset BusinessCombinationIndemnificationAsset	23500000	USD
CY2014	mco	Net Interest Income Expense NetInterestIncomeExpense	-116800000	USD
CY2014	us-gaap	Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax	-2200000	USD
CY2013	us-gaap	Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax	-600000	USD
CY2012	us-gaap	Other Comprehensive Income Foreign Currency Translation Gain Loss Arising During Period Tax OtherComprehensiveIncomeForeignCurrencyTranslationGainLossArisingDuringPeriodTax	200000	USD
CY2014	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-153100000	USD
CY2013	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-15200000	USD
CY2012	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	35200000	USD
CY2013Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	17500000	USD
CY2014	mco	Aoci Reclassification Textblock AociReclassificationTextblock	<div><table style='border-collapse:collapse;' ><tr style='height:24.75pt;' ><td style='width:11.25pt;text-align:left;border-color:Black;min-width:11.25pt;' ></td><td style='width:168.75pt;text-align:left;border-color:Black;min-width:168.75pt;' ></td><td colspan='5' rowspan='1' style='width:120pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:120pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >Year Ended December 31,</font></td><td style='width:12pt;text-align:center;border-color:Black;min-width:12pt;' ></td><td colspan='1' rowspan='2' style='width:97.5pt;text-align:center;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >Affected line in the Consolidated Statements of Operation</font></td></tr><tr style='height:20.25pt;' ><td style='width:11.25pt;text-align:left;border-color:Black;min-width:11.25pt;' ></td><td style='width:168.75pt;text-align:left;border-color:Black;min-width:168.75pt;' ></td><td colspan='2' rowspan='1' style='width:54pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:54pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >2014</font></td><td style='width:15pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:15pt;' ></td><td colspan='2' rowspan='1' style='width:51pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:51pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >2013</font></td><td style='width:12pt;text-align:center;border-color:Black;min-width:12pt;' ></td></tr><tr style='height:12.75pt;' ><td colspan='2' rowspan='1' style='width:180pt;text-align:left;border-color:Black;min-width:180pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >Losses on foreign translation adjustments</font></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-top-style:solid;border-top-width:1;text-align:left;border-color:Black;min-width:42.75pt;' ></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-top-style:solid;border-top-width:1;text-align:left;border-color:Black;min-width:39.75pt;' ></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;border-top-style:solid;border-top-width:1;text-align:left;border-color:Black;min-width:97.5pt;' ></td></tr><tr style='height:24pt;' ><td style='width:11.25pt;text-align:left;border-color:Black;min-width:11.25pt;' ></td><td style='width:168.75pt;text-align:left;border-color:Black;min-width:168.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Liquidation of foreign subsidiary</font></td><td style='width:11.25pt;text-align:center;border-color:Black;min-width:11.25pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >$</font></td><td style='width:42.75pt;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >-</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;text-align:center;border-color:Black;min-width:11.25pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >$</font></td><td style='width:39.75pt;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >(1.4)</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Other non-operating income (expense), net</font></td></tr><tr style='height:36pt;' ><td style='width:11.25pt;text-align:left;border-color:Black;min-width:11.25pt;' ></td><td style='width:168.75pt;text-align:left;border-color:Black;min-width:168.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Loss on foreign currency translation adjustment pursuant to ICRA step-acquisition</font></td><td style='width:11.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >(4.4)</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >-</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >ICRA Gain</font></td></tr><tr style='height:12.75pt;' ><td colspan='2' rowspan='1' style='width:180pt;text-align:left;border-color:Black;min-width:180pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >Total losses on foreign translation adjustments</font></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >(4.4)</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >(1.4)</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ></td></tr><tr style='height:12.75pt;' ><td colspan='2' rowspan='1' style='width:180pt;text-align:left;border-color:Black;min-width:180pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >Losses on cash flow hedges</font></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-top-style:solid;border-top-width:1;text-align:left;border-color:Black;min-width:42.75pt;' ></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-top-style:solid;border-top-width:1;text-align:left;border-color:Black;min-width:39.75pt;' ></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ></td></tr><tr style='height:12.75pt;' ><td style='width:11.25pt;text-align:left;border-color:Black;min-width:11.25pt;' ></td><td style='width:168.75pt;text-align:left;border-color:Black;min-width:168.75pt;' ></td><td style='width:11.25pt;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;text-align:left;border-color:Black;min-width:42.75pt;' ></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;text-align:left;border-color:Black;min-width:39.75pt;' ></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ></td></tr><tr style='height:24pt;' ><td style='width:11.25pt;text-align:left;border-color:Black;min-width:11.25pt;' ></td><td style='width:168.75pt;text-align:left;border-color:Black;min-width:168.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Interest rate swap derivative contracts</font></td><td style='width:11.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >-</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >(1.2)</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Interest income (expense), net</font></td></tr><tr style='height:24pt;' ><td style='width:11.25pt;text-align:left;border-color:Black;min-width:11.25pt;' ></td><td style='width:168.75pt;text-align:left;border-color:Black;min-width:168.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Income tax effect of item above</font></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >-</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >0.5</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Provision for income taxes</font></td></tr><tr style='height:12.75pt;' ><td colspan='2' rowspan='1' style='width:180pt;text-align:left;border-color:Black;min-width:180pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >Losses on cash flow hedges</font></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >-</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >(0.7)</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ></td></tr><tr style='height:12.75pt;' ><td colspan='2' rowspan='1' style='width:180pt;text-align:left;border-color:Black;min-width:180pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >Gains on available for sale securities</font></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-top-style:solid;border-top-width:1;text-align:left;border-color:Black;min-width:42.75pt;' ></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-top-style:solid;border-top-width:1;text-align:left;border-color:Black;min-width:39.75pt;' ></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ></td></tr><tr style='height:24pt;' ><td style='width:11.25pt;text-align:left;border-color:Black;min-width:11.25pt;' ></td><td style='width:168.75pt;text-align:left;border-color:Black;min-width:168.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Gain on sale of available for sale securities</font></td><td style='width:11.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >0.1</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >-</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Other non-operating income (expense), net</font></td></tr><tr style='height:12.75pt;' ><td colspan='2' rowspan='1' style='width:180pt;text-align:left;border-color:Black;min-width:180pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >Total gains on available for sale securities</font></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-top-style:solid;border-top-width:1;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >0.1</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-top-style:solid;border-top-width:1;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >-</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ></td></tr><tr style='height:24pt;' ><td colspan='2' rowspan='1' style='width:180pt;text-align:left;border-color:Black;min-width:180pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >Losses on pension and other retirement benefits</font></td><td style='width:11.25pt;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;text-align:left;border-color:Black;min-width:42.75pt;' ></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;text-align:left;border-color:Black;min-width:39.75pt;' ></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ></td></tr><tr style='height:30pt;' ><td style='width:11.25pt;text-align:left;border-color:Black;min-width:11.25pt;' ></td><td style='width:168.75pt;text-align:left;border-color:Black;min-width:168.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Amortization of actuarial losses and prior service costs included in net income</font></td><td style='width:11.25pt;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >(4.7)</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >(7.6)</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Operating expense</font></td></tr><tr style='height:30pt;' ><td style='width:11.25pt;text-align:left;border-color:Black;min-width:11.25pt;' ></td><td style='width:168.75pt;text-align:left;border-color:Black;min-width:168.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Amortization of actuarial losses and prior service costs included in net income</font></td><td style='width:11.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >(2.6)</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >(4.3)</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >SG&A expense</font></td></tr><tr style='height:12.75pt;' ><td style='width:11.25pt;text-align:left;border-color:Black;min-width:11.25pt;' ></td><td style='width:168.75pt;text-align:left;border-color:Black;min-width:168.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Total before income taxes</font></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-top-style:solid;border-top-width:1;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >(7.3)</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-top-style:solid;border-top-width:1;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >(11.9)</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ></td></tr><tr style='height:12.75pt;' ><td style='width:11.25pt;text-align:left;border-color:Black;min-width:11.25pt;' ></td><td style='width:168.75pt;text-align:left;border-color:Black;min-width:168.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Income tax effect of item above</font></td><td style='width:11.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >2.8</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >4.9</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >Provision for income tax</font></td></tr><tr style='height:29.25pt;' ><td colspan='2' rowspan='1' style='width:180pt;text-align:left;border-color:Black;min-width:180pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >Total losses on pension and other retirement benefits</font></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:42.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >(4.5)</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:center;border-color:Black;min-width:11.25pt;' ></td><td style='width:39.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:solid;border-bottom-width:1;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >(7.0)</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ></td></tr><tr style='height:30.75pt;' ><td colspan='2' rowspan='1' style='width:180pt;text-align:left;border-color:Black;min-width:180pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >Total losses included in Net Income attributable to reclassifications out of AOCI</font></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;border-bottom-style:double;border-bottom-width:3;text-align:center;border-color:Black;min-width:11.25pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >$</font></td><td style='width:42.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:double;border-bottom-width:3;text-align:right;border-color:Black;min-width:42.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;font-weight:bold;color:#000000;' >(8.8)</font></td><td style='width:15pt;text-align:left;border-color:Black;min-width:15pt;' ></td><td style='width:11.25pt;border-top-style:solid;border-top-width:1;border-bottom-style:double;border-bottom-width:3;text-align:center;border-color:Black;min-width:11.25pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >$</font></td><td style='width:39.75pt;border-top-style:solid;border-top-width:1;border-bottom-style:double;border-bottom-width:3;text-align:right;border-color:Black;min-width:39.75pt;' ><font style='font-family:Times New Roman;font-size:9pt;color:#000000;' >(9.1)</font></td><td style='width:12pt;text-align:left;border-color:Black;min-width:12pt;' ></td><td style='width:97.5pt;text-align:left;border-color:Black;min-width:97.5pt;' ></td></tr></table></div>
CY2014	us-gaap	Payments For Hedge Investing Activities PaymentsForHedgeInvestingActivities	500000	USD
CY2013	us-gaap	Payments For Hedge Investing Activities PaymentsForHedgeInvestingActivities	0	USD
CY2012	us-gaap	Payments For Hedge Investing Activities PaymentsForHedgeInvestingActivities	0	USD
CY2014	us-gaap	Proceeds From Hedge Investing Activities ProceedsFromHedgeInvestingActivities	22200000	USD
CY2013Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	1165500000	USD
CY2014	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	4500000	USD
CY2013	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	7000000	USD
CY2012	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	5900000	USD
CY2013	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-4900000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	-14800000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	29900000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	-56700000	USD
CY2013	us-gaap	Proceeds From Hedge Investing Activities ProceedsFromHedgeInvestingActivities	0	USD
CY2012	us-gaap	Proceeds From Hedge Investing Activities ProceedsFromHedgeInvestingActivities	0	USD
CY2014	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	1000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	0	USD
CY2014	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2013	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0	USD
CY2014	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	1000000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
CY2014	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	183800000	USD
CY2013	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	0	USD
CY2012	us-gaap	Payments For Repurchase Of Redeemable Noncontrolling Interest PaymentsForRepurchaseOfRedeemableNoncontrollingInterest	0	USD
CY2014	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	99400000	USD
CY2013Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	17500000	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	9100000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	0	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	-500000	USD
CY2012	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	100000	USD
CY2012	mco	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Foreign Currency Translation Adjustments FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityForeignCurrencyTranslationAdjustments	300000	USD
CY2013	us-gaap	Translation Adjustment Functional To Reporting Currency Loss Gain On Reclassified Of Earnings Net Of Tax TranslationAdjustmentFunctionalToReportingCurrencyLossGainOnReclassifiedOfEarningsNetOfTax	-1400000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-82100000	USD
CY2013Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	15600000	USD
CY2014Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	0	USD
CY2014	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	-17800000	USD
CY2014	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	11000000	USD
CY2014Q4	mco	Reversals Of Accrued Interest Expense On Tax ReversalsOfAccruedInterestExpenseOnTax	2000000	USD
CY2013Q1	us-gaap	Stock Repurchase Program Authorized Amount StockRepurchaseProgramAuthorizedAmount	1000000000	USD
CY2014Q1	us-gaap	Stock Repurchase Program Authorized Amount StockRepurchaseProgramAuthorizedAmount	1000000000	USD
CY2014Q4	us-gaap	Stock Repurchase Program Authorized Amount StockRepurchaseProgramAuthorizedAmount	1000000000	USD
CY2014	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2014	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2014Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.34
CY2013Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	212300000	USD
CY2014Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	149700000	USD
CY2012	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	2.4	pure
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1000000	USD
CY2012Q3	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1000000	USD
CY2014Q4	us-gaap	Business Combination Acquisition Of Less Than100 Percent Noncontrolling Interest Fair Value BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue	218800000	USD
CY2014Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	2100000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	0	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
CY2013	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	0	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-100000	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	0	USD
CY2014	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-100000	USD
CY2014	mco	Income Benefits Related To Resolution Of Legacy Tax Matters IncomeBenefitsRelatedToResolutionOfLegacyTaxMatters	21300000	USD
CY2013	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	7900000	USD
CY2012	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	3400000	USD
CY2014Q4	mco	Reporting Units ReportingUnits	6	pure
CY2012Q1	mco	Tax Settlements TaxSettlements	92000000	USD

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$MCO
MOODYS CORP /DE/ Stock $mco

2014 Q4 Form 10-K Financial Statement

#000119312515063352 Filed on February 26, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MCO MOODYS CORP /DE/ Stock $mco

2014 Q4 Form 10-K Financial Statement

#000119312515063352 Filed on February 26, 2015

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MCO
MOODYS CORP /DE/ Stock $mco