    <SEC-DOCUMENT>0000277948-17-000004-index.html : 20170117
    <SEC-HEADER>0000277948-17-000004.hdr.sgml : 20170117
    <ACCEPTANCE-DATETIME>20170117160133
    ACCESSION NUMBER:		0000277948-17-000004
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		19
    CONFORMED PERIOD OF REPORT:	20170117
    ITEM INFORMATION:		Results of Operations and Financial Condition
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20170117
    DATE AS OF CHANGE:		20170117

    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:			1225

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-08022
    		FILM NUMBER:		17530743

    	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>form8kq42016.htm
    <DESCRIPTION>Q4 2016 FORM 8-K
    <TEXT>
    Document 1 - file: form8kq42016.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>pressrelease_q42016.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 2 - file: pressrelease_q42016.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>3
    <FILENAME>qfr_q42016.htm
    <DESCRIPTION>Q4 2016 QUARTERLY FINANCIAL REPORT
    <TEXT>
    Document 3 - file: qfr_q42016.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>csxlogo_q42016.jpg
    <DESCRIPTION>FORM 8-K LOGO
    <TEXT>
    Document 4 - file: csxlogo_q42016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>financialreportcover_q42016.jpg
    <DESCRIPTION>Q4 2016 QFR COVER
    <TEXT>
    Document 5 - file: financialreportcover_q42016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>immapandkeyq42016.jpg
    <DESCRIPTION>EXHIBIT 99.2 INTERMODAL MAP
    <TEXT>
    Document 6 - file: immapandkeyq42016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>networkcorridormap_q42016.jpg
    <DESCRIPTION>EXHIBIT 99.2 NETWORK MAP
    <TEXT>
    Document 7 - file: networkcorridormap_q42016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>qfr_q42016xchart-37393.jpg
    <DESCRIPTION>EXHIBIT 99.2 CHART
    <TEXT>
    Document 8 - file: qfr_q42016xchart-37393.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>qfr_q42016xchart-38081.jpg
    <DESCRIPTION>EXHIBIT 99.2 CHART
    <TEXT>
    Document 9 - file: qfr_q42016xchart-38081.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>qfr_q42016xchart-38480.jpg
    <DESCRIPTION>EXHIBIT 99.2 CHART
    <TEXT>
    Document 10 - file: qfr_q42016xchart-38480.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>qfr_q42016xchart-38916.jpg
    <DESCRIPTION>EXHIBIT 99.2 CHART
    <TEXT>
    Document 11 - file: qfr_q42016xchart-38916.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>qfr_q42016xchart-39421.jpg
    <DESCRIPTION>EXHIBIT 99.2 CHART
    <TEXT>
    Document 12 - file: qfr_q42016xchart-39421.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>qfr_q42016xchart-39824.jpg
    <DESCRIPTION>EXHIBIT 99.2 CHART
    <TEXT>
    Document 13 - file: qfr_q42016xchart-39824.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>qfr_q42016xchart-40462.jpg
    <DESCRIPTION>EXHIBIT 99.2 CHART
    <TEXT>
    Document 14 - file: qfr_q42016xchart-40462.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>qfr_q42016xchart-40604.jpg
    <DESCRIPTION>EXHIBIT 99.2 CHART
    <TEXT>
    Document 15 - file: qfr_q42016xchart-40604.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>qfr_q42016xchart-41285.jpg
    <DESCRIPTION>EXHIBIT 99.2 CHART
    <TEXT>
    Document 16 - file: qfr_q42016xchart-41285.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>qfr_q42016xchart-41500.jpg
    <DESCRIPTION>EXHIBIT 99.2 CHART
    <TEXT>
    Document 17 - file: qfr_q42016xchart-41500.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>qfrbanner_q42016.jpg
    <DESCRIPTION>EXHIBIT 99.2 BANNER
    <TEXT>
    Document 18 - file: qfrbanner_q42016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>qfrpressreleasebannerq42016.jpg
    <DESCRIPTION>EXHIBIT 99.1 BANNER
    <TEXT>
    Document 19 - file: qfrpressreleasebannerq42016.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>