-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 CGQHSiV99tvYBFaY/m/Pe4g4TWf+MoSZPm4rgFSQAclPz2FVgZN1m4m3wB10sRcT
 sNYsk06L6tXRfAZ4fO5PDQ==

<SEC-DOCUMENT>0001127602-10-006463.txt : 20100226
<SEC-HEADER>0001127602-10-006463.hdr.sgml : 20100226
<ACCEPTANCE-DATETIME>20100226161408
ACCESSION NUMBER:		0001127602-10-006463
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100225
FILED AS OF DATE:		20100226
DATE AS OF CHANGE:		20100226

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Solomon Walter H
		CENTRAL INDEX KEY:			0001378231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32532
		FILM NUMBER:		10639475

	MAIL ADDRESS:	
		STREET 1:		3499 BLAZER PARKWAY
		CITY:			LEXINGTON
		STATE:			KY
		ZIP:			40509

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ASHLAND INC.
		CENTRAL INDEX KEY:			0001305014
		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-CHEMICALS & ALLIED PRODUCTS [5160]
		IRS NUMBER:				200865835
		STATE OF INCORPORATION:			KY
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		50 EAST RIVERCENTER BLVD., 16TH FLOOR
		CITY:			COVINGTON
		STATE:			KY
		ZIP:			41012
		BUSINESS PHONE:		859-815-3483

	MAIL ADDRESS:	
		STREET 1:		50 EAST RIVERCENTER BLVD., 16TH FLOOR
		CITY:			COVINGTON
		STATE:			KY
		ZIP:			41012

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	New EXM Inc.
		DATE OF NAME CHANGE:	20041004
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-02-25</periodOfReport>

    <issuer>
        <issuerCik>0001305014</issuerCik>
        <issuerName>ASHLAND INC.</issuerName>
        <issuerTradingSymbol>ASH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001378231</rptOwnerCik>
            <rptOwnerName>Solomon Walter H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3499 BLAZER PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LEXINGTON</rptOwnerCity>
            <rptOwnerState>KY</rptOwnerState>
            <rptOwnerZipCode>40509</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-02-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3590</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>46.24</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5784</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <ownerSignature>
        <signatureName>/s/David B. Mattingly, Attorney-in-Fact</signatureName>
        <signatureDate>2010-02-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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