    <SEC-DOCUMENT>0001157523-23-000807-index.html : 20230510
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    <ACCEPTANCE-DATETIME>20230510170441
    ACCESSION NUMBER:		0001157523-23-000807
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		19
    CONFORMED PERIOD OF REPORT:	20230510
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20230510
    DATE AS OF CHANGE:		20230510

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Mr. Cooper Group Inc.
    		CENTRAL INDEX KEY:			0000933136
    		STANDARD INDUSTRIAL CLASSIFICATION:	FINANCE SERVICES [6199]
    		IRS NUMBER:				911653725
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-14667
    		FILM NUMBER:		23907535

    	BUSINESS ADDRESS:
    		STREET 1:		8950 CYPRESS WATERS BLVD.
    		CITY:			COPPELL
    		STATE:			TX
    		ZIP:			75019
    		BUSINESS PHONE:		2146874958

    	MAIL ADDRESS:
    		STREET 1:		8950 CYPRESS WATERS BLVD.
    		CITY:			COPPELL
    		STATE:			TX
    		ZIP:			75019

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	WMIH CORP.
    		DATE OF NAME CHANGE:	20150512

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	WMI HOLDINGS CORP.
    		DATE OF NAME CHANGE:	20120320

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	WASHINGTON MUTUAL, INC
    		DATE OF NAME CHANGE:	20061017
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>a53397774.htm
    <DESCRIPTION>MR. COOPER GROUP INC. 8-K
    <TEXT>
    Document 1 - file: a53397774.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>a53397774ex99_1.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: a53397774ex99_1.htm

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    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>a53397774ex99_2.htm
    <DESCRIPTION>EXHIBIT 99.2
    <TEXT>
    Document 3 - file: a53397774ex99_2.htm

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    <TYPE>EX-101.SCH
    <SEQUENCE>4
    <FILENAME>coop-20230510.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA
    <TEXT>
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    <SEQUENCE>5
    <FILENAME>coop-20230510_lab.xml
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    <TEXT>
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    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>6
    <FILENAME>coop-20230510_pre.xml
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    <TEXT>
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    <TYPE>GRAPHIC
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    <FILENAME>a53397774ex99_2slide1.jpg
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    <FILENAME>a53397774ex99_2slide2.jpg
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    <SEQUENCE>9
    <FILENAME>a53397774ex99_2slide3.jpg
    <TEXT>
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    <SEQUENCE>10
    <FILENAME>a53397774ex99_2slide4.jpg
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    <SEQUENCE>11
    <FILENAME>a53397774ex99_2slide5.jpg
    <TEXT>
    Document 11 - file: a53397774ex99_2slide5.jpg

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    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>12
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 12 - file: R1.htm

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    <TYPE>XML
    <SEQUENCE>13
    <FILENAME>a53397774_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 13 - file: a53397774_htm.html

    Document 13 - RAW XML: a53397774_htm.xml

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    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>14
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 14 - file: Financial_Report.xlsx

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    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>15
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    <TEXT>
    Document 15 - file: Show.js

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    <TYPE>XML
    <SEQUENCE>16
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    <TEXT>
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    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>17
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    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>19
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    <TYPE>ZIP
    <SEQUENCE>20
    <FILENAME>0001157523-23-000807-xbrl.zip
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    <TEXT>
    Document 20 - file: 0001157523-23-000807-xbrl.zip

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