    <SEC-DOCUMENT>0001059556-25-000165-index.html : 20250723
    <SEC-HEADER>0001059556-25-000165.hdr.sgml : 20250723
    <ACCEPTANCE-DATETIME>20250723065913
    ACCESSION NUMBER:		0001059556-25-000165
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		38
    CONFORMED PERIOD OF REPORT:	20250723
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20250723
    DATE AS OF CHANGE:		20250723

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			MOODYS CORP /DE/
    		CENTRAL INDEX KEY:			0001059556
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-CONSUMER CREDIT REPORTING, COLLECTION AGENCIES [7320]
    		ORGANIZATION NAME:           	07 Trade & Services
    		EIN:				133998945
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-14037
    		FILM NUMBER:		251141592

    	BUSINESS ADDRESS:
    		STREET 1:		7 WORLD TRADE CENTER
    		STREET 2:		AT 250 GREENWICH STREET
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10007
    		BUSINESS PHONE:		2125530300

    	MAIL ADDRESS:
    		STREET 1:		7 WORLD TRADE CENTER
    		STREET 2:		AT 250 GREENWICH STREET
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10007

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	DUN & BRADSTREET CORP /DE/
    		DATE OF NAME CHANGE:	19980728

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	NEW DUN & BRADSTREET CORP
    		DATE OF NAME CHANGE:	19980728
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>mco-20250723.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: mco-20250723.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>a2q25earningsrelease.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: a2q25earningsrelease.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>3
    <FILENAME>mco-20250723.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
    Document 3 - file: mco-20250723.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>4
    <FILENAME>mco-20250723_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
    <TEXT>
    Document 4 - file: mco-20250723_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>5
    <FILENAME>mco-20250723_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
    <TEXT>
    Document 5 - file: mco-20250723_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>6
    <FILENAME>mco-20250723_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
    <TEXT>
    Document 6 - file: mco-20250723_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>chart-0221c410a82e4477890.jpg
    <TEXT>
    Document 7 - file: chart-0221c410a82e4477890.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>chart-16364a4bed9b4acabf1.jpg
    <TEXT>
    Document 8 - file: chart-16364a4bed9b4acabf1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>chart-21e729225d03432eba8.jpg
    <TEXT>
    Document 9 - file: chart-21e729225d03432eba8.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>chart-32bb977adfd3408a8b2.jpg
    <TEXT>
    Document 10 - file: chart-32bb977adfd3408a8b2.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>chart-370888735c3a44aaa6c.jpg
    <TEXT>
    Document 11 - file: chart-370888735c3a44aaa6c.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>chart-4844c2dec9fa4c438b8.jpg
    <TEXT>
    Document 12 - file: chart-4844c2dec9fa4c438b8.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>chart-567441a6c20a4c6c983.jpg
    <TEXT>
    Document 13 - file: chart-567441a6c20a4c6c983.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>chart-5688e7d3f51e4cf8a83.jpg
    <TEXT>
    Document 14 - file: chart-5688e7d3f51e4cf8a83.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>chart-56c57f76836046a482d.jpg
    <TEXT>
    Document 15 - file: chart-56c57f76836046a482d.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>chart-6dd1c231fb204d0e9d4.jpg
    <TEXT>
    Document 16 - file: chart-6dd1c231fb204d0e9d4.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>chart-743f5443ddfe42adbb7.jpg
    <TEXT>
    Document 17 - file: chart-743f5443ddfe42adbb7.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>chart-7c103bcc29134db7b83.jpg
    <TEXT>
    Document 18 - file: chart-7c103bcc29134db7b83.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>chart-8a44d5ddb61d4700bf3.jpg
    <TEXT>
    Document 19 - file: chart-8a44d5ddb61d4700bf3.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>chart-93f4283ebb2849709dc.jpg
    <TEXT>
    Document 20 - file: chart-93f4283ebb2849709dc.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>chart-97bb2aa4e00d4d238a3.jpg
    <TEXT>
    Document 21 - file: chart-97bb2aa4e00d4d238a3.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>chart-bb60b1a815d14c1794b.jpg
    <TEXT>
    Document 22 - file: chart-bb60b1a815d14c1794b.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>chart-bc397bab463f4fc4ac5.jpg
    <TEXT>
    Document 23 - file: chart-bc397bab463f4fc4ac5.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>chart-bce98812270e4746953.jpg
    <TEXT>
    Document 24 - file: chart-bce98812270e4746953.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>chart-bd20fa343a554d7cb05.jpg
    <TEXT>
    Document 25 - file: chart-bd20fa343a554d7cb05.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>chart-bd7dc43a15c44da9bd8.jpg
    <TEXT>
    Document 26 - file: chart-bd7dc43a15c44da9bd8.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>chart-c7c2e723841245fbafe.jpg
    <TEXT>
    Document 27 - file: chart-c7c2e723841245fbafe.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>chart-e1448220a1624d48ad4.jpg
    <TEXT>
    Document 28 - file: chart-e1448220a1624d48ad4.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>chart-f37b58f679224474990.jpg
    <TEXT>
    Document 29 - file: chart-f37b58f679224474990.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>moodyslogo.jpg
    <TEXT>
    Document 30 - file: moodyslogo.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>32
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 32 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>33
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 33 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>34
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 34 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>36
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 36 - file: FilingSummary.html

    Document 36 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>38
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 38 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>39
    <FILENAME>0001059556-25-000165-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 39 - file: 0001059556-25-000165-xbrl.zip

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>40
    <FILENAME>mco-20250723_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 40 - file: mco-20250723_htm.html

    Document 40 - RAW XML: mco-20250723_htm.xml

    </DOCUMENT>
    </SEC-DOCUMENT>