    <SEC-DOCUMENT>0000277948-19-000004-index.html : 20190116
    <SEC-HEADER>0000277948-19-000004.hdr.sgml : 20190116
    <ACCEPTANCE-DATETIME>20190116160202
    ACCESSION NUMBER:		0000277948-19-000004
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		7
    CONFORMED PERIOD OF REPORT:	20190116
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Other Events
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20190116
    DATE AS OF CHANGE:		20190116

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CSX CORP
    		CENTRAL INDEX KEY:			0000277948
    		STANDARD INDUSTRIAL CLASSIFICATION:	RAILROADS, LINE-HAUL OPERATING [4011]
    		IRS NUMBER:				621051971
    		STATE OF INCORPORATION:			VA
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-08022
    		FILM NUMBER:		19529136

    	BUSINESS ADDRESS:
    		STREET 1:		500 WATER STREET
    		STREET 2:		15TH FLOOR
    		CITY:			JACKSONVILLE
    		STATE:			FL
    		ZIP:			32202
    		BUSINESS PHONE:		9043593200

    	MAIL ADDRESS:
    		STREET 1:		500 WATER STREET
    		STREET 2:		15TH FLOOR
    		CITY:			JACKSONVILLE
    		STATE:			FL
    		ZIP:			32202
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>form8kq42018.htm
    <DESCRIPTION>Q4 2018 FORM 8-K
    <TEXT>
    Document 1 - file: form8kq42018.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>pressrelease_q42018.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: pressrelease_q42018.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>qfr_q42018.htm
    <DESCRIPTION>Q42018 QUARTERLY FINANCIAL REPORT
    <TEXT>
    Document 3 - file: qfr_q42018.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>csxlogoq42018.jpg
    <DESCRIPTION>FORM 8-K LOGO
    <TEXT>
    Document 4 - file: csxlogoq42018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>csxq418qfrltrv1.jpg
    <DESCRIPTION>Q4 2018 QFR COVER
    <TEXT>
    Document 5 - file: csxq418qfrltrv1.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>pressreleasebannerq42018.jpg
    <DESCRIPTION>EXHIBIT 99.1 BANNER
    <TEXT>
    Document 6 - file: pressreleasebannerq42018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>qfrbannerq42018.jpg
    <DESCRIPTION>EXHIBIT 99.2 BANNER
    <TEXT>
    Document 7 - file: qfrbannerq42018.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>