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<xbrl
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    <context id="P09_25_2024To09_25_2024">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001283699</identifier>
        </entity>
        <period>
            <startDate>2024-09-25</startDate>
            <endDate>2024-09-25</endDate>
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    <context id="P09_25_2024To09_25_2024_1TypedMemberffdOfferingAxis">
        <entity>
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        <period>
            <startDate>2024-09-25</startDate>
            <endDate>2024-09-25</endDate>
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    <context id="P09_25_2024To09_25_2024_2TypedMemberffdOfferingAxis">
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            <startDate>2024-09-25</startDate>
            <endDate>2024-09-25</endDate>
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    <context id="P09_25_2024To09_25_2024_3TypedMemberffdOfferingAxis">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001283699</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
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        <period>
            <startDate>2024-09-25</startDate>
            <endDate>2024-09-25</endDate>
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    <unit id="Unit_USD">
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    <unit id="Unit_pure">
        <measure>pure</measure>
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    <unit id="Unit_shares">
        <measure>shares</measure>
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    <ffd:SubmissnTp contextRef="P09_25_2024To09_25_2024" id="hidden121732431">424B5</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="P09_25_2024To09_25_2024" id="ixv-579">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:Rule457rFlg
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    <ffd:Rule457rFlg
      contextRef="P09_25_2024To09_25_2024_3TypedMemberffdOfferingAxis"
      id="hidden121732438">true</ffd:Rule457rFlg>
    <dei:EntityRegistrantName contextRef="P09_25_2024To09_25_2024" id="ixv-82">T-Mobile US, Inc.</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg
      contextRef="P09_25_2024To09_25_2024_1TypedMemberffdOfferingAxis"
      id="ixv-625">false</ffd:PrevslyPdFlg>
    <ffd:PrevslyPdFlg
      contextRef="P09_25_2024To09_25_2024_2TypedMemberffdOfferingAxis"
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    <ffd:PrevslyPdFlg
      contextRef="P09_25_2024To09_25_2024_3TypedMemberffdOfferingAxis"
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    <ffd:OfferingSctyTp
      contextRef="P09_25_2024To09_25_2024_1TypedMemberffdOfferingAxis"
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    <ffd:OfferingSctyTitl
      contextRef="P09_25_2024To09_25_2024_1TypedMemberffdOfferingAxis"
      id="ixv-629">4.200% Senior Notes due 2029</ffd:OfferingSctyTitl>
    <ffd:AmtSctiesRegd
      contextRef="P09_25_2024To09_25_2024_1TypedMemberffdOfferingAxis"
      decimals="0"
      id="ixv-630"
      unitRef="Unit_shares">700000000</ffd:AmtSctiesRegd>
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      contextRef="P09_25_2024To09_25_2024_1TypedMemberffdOfferingAxis"
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      id="ixv-631"
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      contextRef="P09_25_2024To09_25_2024_1TypedMemberffdOfferingAxis"
      decimals="0"
      id="ixv-632"
      unitRef="Unit_USD">698558000</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="P09_25_2024To09_25_2024_1TypedMemberffdOfferingAxis"
      decimals="INF"
      id="ixv-633"
      unitRef="Unit_pure">0.0001476</ffd:FeeRate>
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      contextRef="P09_25_2024To09_25_2024_1TypedMemberffdOfferingAxis"
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      id="ixv-634"
      unitRef="Unit_USD">103108</ffd:FeeAmt>
    <ffd:OfferingSctyTp
      contextRef="P09_25_2024To09_25_2024_2TypedMemberffdOfferingAxis"
      id="ixv-635">Debt</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl
      contextRef="P09_25_2024To09_25_2024_2TypedMemberffdOfferingAxis"
      id="ixv-636">4.700% Senior Notes due 2035</ffd:OfferingSctyTitl>
    <ffd:AmtSctiesRegd
      contextRef="P09_25_2024To09_25_2024_2TypedMemberffdOfferingAxis"
      decimals="0"
      id="ixv-637"
      unitRef="Unit_shares">900000000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="P09_25_2024To09_25_2024_2TypedMemberffdOfferingAxis"
      decimals="5"
      id="ixv-638"
      unitRef="Unit_pure">0.99853</ffd:MaxOfferingPricPerScty>
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      contextRef="P09_25_2024To09_25_2024_2TypedMemberffdOfferingAxis"
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      id="ixv-639"
      unitRef="Unit_USD">898677000</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="P09_25_2024To09_25_2024_2TypedMemberffdOfferingAxis"
      decimals="INF"
      id="ixv-640"
      unitRef="Unit_pure">0.0001476</ffd:FeeRate>
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      contextRef="P09_25_2024To09_25_2024_2TypedMemberffdOfferingAxis"
      decimals="0"
      id="ixv-641"
      unitRef="Unit_USD">132645</ffd:FeeAmt>
    <ffd:OfferingSctyTp
      contextRef="P09_25_2024To09_25_2024_3TypedMemberffdOfferingAxis"
      id="ixv-642">Debt</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl
      contextRef="P09_25_2024To09_25_2024_3TypedMemberffdOfferingAxis"
      id="ixv-643">5.250% Senior Notes due 2055</ffd:OfferingSctyTitl>
    <ffd:AmtSctiesRegd
      contextRef="P09_25_2024To09_25_2024_3TypedMemberffdOfferingAxis"
      decimals="0"
      id="ixv-644"
      unitRef="Unit_shares">900000000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="P09_25_2024To09_25_2024_3TypedMemberffdOfferingAxis"
      decimals="5"
      id="ixv-645"
      unitRef="Unit_pure">0.99781</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="P09_25_2024To09_25_2024_3TypedMemberffdOfferingAxis"
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      id="ixv-646"
      unitRef="Unit_USD">898029000</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="P09_25_2024To09_25_2024_3TypedMemberffdOfferingAxis"
      decimals="INF"
      id="ixv-647"
      unitRef="Unit_pure">0.0001476</ffd:FeeRate>
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      contextRef="P09_25_2024To09_25_2024_3TypedMemberffdOfferingAxis"
      decimals="0"
      id="ixv-648"
      unitRef="Unit_USD">132550</ffd:FeeAmt>
    <ffd:TtlOfferingAmt
      contextRef="P09_25_2024To09_25_2024"
      decimals="0"
      id="ixv-649"
      unitRef="Unit_USD">2495264000</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt
      contextRef="P09_25_2024To09_25_2024"
      decimals="0"
      id="ixv-650"
      unitRef="Unit_USD">368303</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt
      contextRef="P09_25_2024To09_25_2024"
      decimals="0"
      id="ixv-651"
      unitRef="Unit_USD">0</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt
      contextRef="P09_25_2024To09_25_2024"
      decimals="0"
      id="ixv-652"
      unitRef="Unit_USD">0</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt
      contextRef="P09_25_2024To09_25_2024"
      decimals="0"
      id="ixv-653"
      unitRef="Unit_USD">368303</ffd:NetFeeAmt>
    <ffd:OfferingNote
      contextRef="P09_25_2024To09_25_2024_1TypedMemberffdOfferingAxis"
      id="ixv-565">
&lt;table cellpadding="0" cellspacing="0" style="text-align:start; BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;border:0;width:100%"&gt;
&lt;tr style="page-break-inside:avoid"&gt;
&lt;td style="width:4%;vertical-align:top;text-align:left;"&gt;(1)&lt;div style="font-weight:bold;display:inline;"&gt;&lt;/div&gt;&lt;/td&gt;
&lt;td style="vertical-align:top;text-align:left;"&gt;&lt;div style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left"&gt;&lt;div style="font-weight:bold;display:inline;"&gt;This registration fee table shall be deemed to update the &#x201c;Calculation of Registration Fee&#x201d; in the Company&#x2019;s Registration Statement on Form&#160;S-3ASR (File No.&#160;333-271553) in accordance with Rules&#160;456(b) and 457(r) under the Securities Act of 1933, as amended.&lt;/div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</ffd:OfferingNote>
    <ffd:OfferingNote
      contextRef="P09_25_2024To09_25_2024_2TypedMemberffdOfferingAxis"
      id="ixv-566">
&lt;table cellpadding="0" cellspacing="0" style="text-align:start; BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;border:0;width:100%"&gt;
&lt;tr style="page-break-inside:avoid"&gt;
&lt;td style="width:4%;vertical-align:top;text-align:left;"&gt;(1)&lt;div style="font-weight:bold;display:inline;"&gt;&lt;/div&gt;&lt;/td&gt;
&lt;td style="vertical-align:top;text-align:left;"&gt;&lt;div style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left"&gt;&lt;div style="font-weight:bold;display:inline;"&gt;This registration fee table shall be deemed to update the &#x201c;Calculation of Registration Fee&#x201d; in the Company&#x2019;s Registration Statement on Form&#160;S-3ASR (File No.&#160;333-271553) in accordance with Rules&#160;456(b) and 457(r) under the Securities Act of 1933, as amended.&lt;/div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</ffd:OfferingNote>
    <ffd:OfferingNote
      contextRef="P09_25_2024To09_25_2024_3TypedMemberffdOfferingAxis"
      id="ixv-567">
&lt;table cellpadding="0" cellspacing="0" style="text-align:start; BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt;border:0;width:100%"&gt;
&lt;tr style="page-break-inside:avoid"&gt;
&lt;td style="width:4%;vertical-align:top;text-align:left;"&gt;(1)&lt;div style="font-weight:bold;display:inline;"&gt;&lt;/div&gt;&lt;/td&gt;
&lt;td style="vertical-align:top;text-align:left;"&gt;&lt;div style=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman;text-align:left"&gt;&lt;div style="font-weight:bold;display:inline;"&gt;This registration fee table shall be deemed to update the &#x201c;Calculation of Registration Fee&#x201d; in the Company&#x2019;s Registration Statement on Form&#160;S-3ASR (File No.&#160;333-271553) in accordance with Rules&#160;456(b) and 457(r) under the Securities Act of 1933, as amended.&lt;/div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</ffd:OfferingNote>
    <ffd:FormTp contextRef="P09_25_2024To09_25_2024" id="ixv-654">S-3</ffd:FormTp>
    <ffd:RegnFileNb contextRef="P09_25_2024To09_25_2024" id="ixv-655">333-271553</ffd:RegnFileNb>
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