<SEC-DOCUMENT>0000947484-20-000068-index.html : 20200630
<SEC-HEADER>0000947484-20-000068.hdr.sgml : 20200630
<ACCEPTANCE-DATETIME>20200630143933
ACCESSION NUMBER:		0000947484-20-000068
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		17
CONFORMED PERIOD OF REPORT:	20200630
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20200630
DATE AS OF CHANGE:		20200630

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ARCH CAPITAL GROUP LTD.
		CENTRAL INDEX KEY:			0000947484
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16209
		FILM NUMBER:		201002006

	BUSINESS ADDRESS:	
		STREET 1:		WATERLOO HOUSE, GROUND FLOOR
		STREET 2:		100 PITTS BAY ROAD
		CITY:			PEMBROKE
		STATE:			D0
		ZIP:			HM 08
		BUSINESS PHONE:		441-278-9250

	MAIL ADDRESS:	
		STREET 1:		WATERLOO HOUSE, GROUND FLOOR
		STREET 2:		100 PITTS BAY ROAD
		CITY:			PEMBROKE
		STATE:			D0
		ZIP:			HM 08

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ARCH CAPITAL GROUP LTD
		DATE OF NAME CHANGE:	20000508

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RISK CAPITAL HOLDINGS INC
		DATE OF NAME CHANGE:	19950816

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	RISK CAPITAL RE INC
		DATE OF NAME CHANGE:	19950703
</SEC-HEADER>
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<TYPE>8-K
<SEQUENCE>1
<FILENAME>a8-k063020.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: a8-k063020.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.2
<SEQUENCE>2
<FILENAME>ex4263020.htm
<DESCRIPTION>EX 4.2
<TEXT>
Document 2 - file: ex4263020.htm

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<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>3
<FILENAME>ex51cahill.htm
<DESCRIPTION>EX 5.1
<TEXT>
Document 3 - file: ex51cahill.htm

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<DOCUMENT>
<TYPE>EX-5.2
<SEQUENCE>4
<FILENAME>ex52conyers.htm
<DESCRIPTION>EX 5.2
<TEXT>
Document 4 - file: ex52conyers.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>5
<FILENAME>acgl-20200630.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
Document 5 - file: acgl-20200630.xsd

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<TYPE>EX-101.CAL
<SEQUENCE>6
<FILENAME>acgl-20200630_cal.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
<TEXT>
Document 6 - file: acgl-20200630_cal.xml

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<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>7
<FILENAME>acgl-20200630_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
<TEXT>
Document 7 - file: acgl-20200630_def.xml

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<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>8
<FILENAME>acgl-20200630_lab.xml
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<TEXT>
Document 8 - file: acgl-20200630_lab.xml

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<TYPE>EX-101.PRE
<SEQUENCE>9
<FILENAME>acgl-20200630_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
Document 9 - file: acgl-20200630_pre.xml

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<SEQUENCE>10
<FILENAME>a8-k063020_htm.xml
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<TEXT>
Document 10 - file: a8-k063020_htm.html

Document 10 - RAW XML: a8-k063020_htm.xml

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<TYPE>XML
<SEQUENCE>11
<FILENAME>R1.htm
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<TEXT>
Document 11 - file: R1.htm

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<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>12
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 12 - file: Financial_Report.xlsx

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<TYPE>XML
<SEQUENCE>13
<FILENAME>Show.js
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<TEXT>
Document 13 - file: Show.js

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<TYPE>XML
<SEQUENCE>14
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 14 - file: report.css

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<DOCUMENT>
<TYPE>XML
<SEQUENCE>15
<FILENAME>FilingSummary.xml
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<TEXT>
Document 15 - file: FilingSummary.html

Document 15 - RAW XML: FilingSummary.xml

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<TYPE>JSON
<SEQUENCE>17
<FILENAME>MetaLinks.json
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 17 - file: MetaLinks.json

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<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>18
<FILENAME>0000947484-20-000068-xbrl.zip
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<TEXT>
Document 18 - file: 0000947484-20-000068-xbrl.zip

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