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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 M10lO83iSQ507HiE3PolQnPasKbdWpD3t4vtvQWDmSXQGdc3Cz9/c8FRzp3mO6lh
 oDN2z+l59WkduQ6XIw67Ug==

<SEC-DOCUMENT>0001137411-03-000047.txt : 20031110
<SEC-HEADER>0001137411-03-000047.hdr.sgml : 20031110
<ACCEPTANCE-DATETIME>20031110165315
ACCESSION NUMBER:		0001137411-03-000047
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031106
FILED AS OF DATE:		20031110

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CHURCHILL GREGORY S
		CENTRAL INDEX KEY:			0001191575

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16445
		FILM NUMBER:		03988943

	MAIL ADDRESS:	
		STREET 1:		400 COLLINS ROAD NE
		CITY:			CEDAR RAPIDS
		STATE:			IA
		ZIP:			52498

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ROCKWELL COLLINS INC
		CENTRAL INDEX KEY:			0001137411
		STANDARD INDUSTRIAL CLASSIFICATION:	AIRCRAFT PART & AUXILIARY EQUIPMENT, NEC [3728]
		IRS NUMBER:				522314475
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		400 COLLINS ROAD NE
		CITY:			CEDAR RAPIDS
		STATE:			IA
		ZIP:			52498
		BUSINESS PHONE:		3192951000
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-11-06</periodOfReport>
    <issuer>
        <issuerCik>0001137411</issuerCik>
        <issuerName>ROCKWELL COLLINS INC</issuerName>
        <issuerTradingSymbol>COL</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001191575</rptOwnerCik>
            <rptOwnerName>CHURCHILL GREGORY S</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>M/S 120-102</rptOwnerStreet1>
            <rptOwnerStreet2>400 COLLINS ROAD NE</rptOwnerStreet2>
            <rptOwnerCity>CEDAR RAPIDS</rptOwnerCity>
            <rptOwnerState>IA</rptOwnerState>
            <rptOwnerZipCode>52498-0001</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>ExecVP and COO, Government Sys</officerTitle></reportingOwnerRelationship></reportingOwner><derivativeTable><derivativeTransaction><securityTitle><value>Stock Option (Right to Buy)</value><footnoteId id="F1"/></securityTitle><conversionOrExercisePrice><value>27.97</value></conversionOrExercisePrice><transactionDate><value>2003-11-06</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>100000</value></transactionShares><transactionPricePerShare><footnoteId id="F1"/></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2004-11-06</value><footnoteId id="F2"/></exerciseDate><expirationDate><value>2013-11-06</value></ex
pirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>100000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>100000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Employee stock options granted pursuant to the Rockwell Collins, Inc. 2001 Long-Term Incentives Plan.</footnote><footnote id="F2">The options vest in three substantially equal annual installments beginning 11/06/2004.</footnote></footnotes><remarks/><ownerSignature><signatureName>Gary R. Chadick, Attorney-in-Fact</signatureName><signatureDate>2003-11-10</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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