    <SEC-DOCUMENT>0001193125-17-027511-index.html : 20170201
    <SEC-HEADER>0001193125-17-027511.hdr.sgml : 20170201
    <ACCEPTANCE-DATETIME>20170201163306
    ACCESSION NUMBER:		0001193125-17-027511
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		19
    CONFORMED PERIOD OF REPORT:	20170201
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20170201
    DATE AS OF CHANGE:		20170201

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			LANDSTAR SYSTEM INC
    		CENTRAL INDEX KEY:			0000853816
    		STANDARD INDUSTRIAL CLASSIFICATION:	TRUCKING (NO LOCAL) [4213]
    		IRS NUMBER:				061313069
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1229

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-21238
    		FILM NUMBER:		17565314

    	BUSINESS ADDRESS:
    		STREET 1:		13410 SUTTON PARK DRIVE SOUTH
    		CITY:			JACKSONVILLE
    		STATE:			FL
    		ZIP:			32224
    		BUSINESS PHONE:		9043901224

    	MAIL ADDRESS:
    		STREET 1:		LANDSTAR SYSTEM INC
    		STREET 2:		13410 SUTTON PARK DRIVE SOUTH
    		CITY:			JACKSONVILLE
    		STATE:			FL
    		ZIP:			32224
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>d341497d8k.htm
    <DESCRIPTION>FORM 8-K
    <TEXT>
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    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>d341497dex991.htm
    <DESCRIPTION>RELEASE DATED FEBRUARY 1, 2017 OF LANDSTAR SYSTEM, INC.
    <TEXT>
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    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
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    <DESCRIPTION>SLIDE PRESENTATION DATED FEBRUARY 1, 2017 OF LANDSTAR SYSTEM, INC.
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