<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-04-29</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000107263</issuerCik>
        <issuerName>WILLIAMS COMPANIES, INC.</issuerName>
        <issuerTradingSymbol>WMB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001183239</rptOwnerCik>
            <rptOwnerName>CREEL MICHAEL A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE WILLIAMS CENTER</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TULSA</rptOwnerCity>
            <rptOwnerState>OK</rptOwnerState>
            <rptOwnerZipCode>74172</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-04-29</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2025-04-29</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3100</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>59.67</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>79785</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>54725</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Includes dividend equivalents on stock units, which are exempt from Section 16 pursuant to Rule 16a-11. Such dividend equivalents are reinvested until distribution at retirement.</footnote>
        <footnote id="F2">2,225 shares of Company stock, previously identified as directly held by the Reporting Person, were subsequently determined to be indirectly owned in a living trust controlled by the Reporting Person. Accordingly, such shares of common stock have been reclassified in the Table I, column 5 totals from being directly owned to indirectly owned.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Cheryl L. Mahon, Attorney-in-fact</signatureName>
        <signatureDate>2025-05-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
[{"type": "4", "sequence": "1", "filename": "wk-form4_1746127526.xml", "description": "FORM 4", "secsgml_size_bytes": 4452}]
X0508
4
2025-04-29
0
0000107263
WILLIAMS COMPANIES, INC.
WMB
0001183239
CREEL MICHAEL A
ONE WILLIAMS CENTER
TULSA
OK
74172
1
0
0
0
0
Common Stock
2025-04-29
2025-04-29
4
A
0
3100
59.67
A
79785
D
Common Stock
54725
I
By Trust
Includes dividend equivalents on stock units, which are exempt from Section 16 pursuant to Rule 16a-11. Such dividend equivalents are reinvested until distribution at retirement.
2,225 shares of Company stock, previously identified as directly held by the Reporting Person, were subsequently determined to be indirectly owned in a living trust controlled by the Reporting Person. Accordingly, such shares of common stock have been reclassified in the Table I, column 5 totals from being directly owned to indirectly owned.
Cheryl L. Mahon, Attorney-in-fact
2025-05-01