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      <ElementDefenition>The portion of the difference between total income tax expense (benefit) as reported in the Income Statement for the period and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to differences in the deductibility of incentive stock options and other share-based compensation costs in accordance with generally accepted accounting principles and enacted tax laws.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
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    <Row>
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      <Level>1</Level>
      <ElementName>twc_TimeWarnerStockOptionsExercisePeriod</ElementName>
      <ElementPrefix>twc</ElementPrefix>
      <IsBaseElement>false</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>General period over which Time Warner stock options held by TWC employees may be exercised from the date of the separation.</ShortDefinition>
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      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
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      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
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        <Cell>
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          <ShowCurrencySymbol>false</ShowCurrencySymbol>
          <IsNumeric>false</IsNumeric>
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          <NonNumbericText />
          <NonNumericTextHeader />
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          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
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        <Cell>
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          <NonNumericTextHeader />
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          <hasScenarios>false</hasScenarios>
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        <Cell>
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          <IsNumeric>true</IsNumeric>
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          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
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          <hasScenarios>false</hasScenarios>
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        <Cell>
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          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:decimalItemType</ElementDataType>
      <SimpleDataType>decimal</SimpleDataType>
      <ElementDefenition>General period over which Time Warner stock options held by TWC employees may be exercised from the date of the separation.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
    </Row>
    <Row>
      <Id>7</Id>
      <Label>Maximum period over which vested Time Warner stock options held by certain retirement-eligible employees may be exercised from the date of the separation</Label>
      <Level>1</Level>
      <ElementName>twc_TimeWarnerStockOptionsExercisePeriodRetirementEligible</ElementName>
      <ElementPrefix>twc</ElementPrefix>
      <IsBaseElement>false</IsBaseElement>
      <BalanceType>na</BalanceType>
      <PeriodType>duration</PeriodType>
      <ShortDefinition>Maximum period over which vested Time Warner stock options held by certain TWC retirement-eligible employees may be exercised...</ShortDefinition>
      <IsReportTitle>false</IsReportTitle>
      <IsSegmentTitle>false</IsSegmentTitle>
      <IsSubReportEnd>false</IsSubReportEnd>
      <IsCalendarTitle>false</IsCalendarTitle>
      <IsTuple>false</IsTuple>
      <IsAbstractGroupTitle>false</IsAbstractGroupTitle>
      <IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow>
      <IsEquityAdjustmentRow>false</IsEquityAdjustmentRow>
      <IsBeginningBalance>false</IsBeginningBalance>
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      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
      <IsEPS>false</IsEPS>
      <FootnoteIndexer />
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          <NonNumbericText />
          <NonNumericTextHeader />
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          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
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          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
        </Cell>
        <Cell>
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          <IsNumeric>true</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
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          <RoundedNumericAmount>5</RoundedNumericAmount>
          <NonNumbericText />
          <NonNumericTextHeader />
          <FootnoteIndexer />
          <hasSegments>false</hasSegments>
          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
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        <Cell>
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          <IsNumeric>false</IsNumeric>
          <IsRatio>false</IsRatio>
          <DisplayZeroAsNone>false</DisplayZeroAsNone>
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          <hasScenarios>false</hasScenarios>
          <DisplayDateInUSFormat>false</DisplayDateInUSFormat>
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      </Cells>
      <OriginalInstanceReportColumns />
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      <SimpleDataType>decimal</SimpleDataType>
      <ElementDefenition>Maximum period over which vested Time Warner stock options held by certain TWC retirement-eligible employees may be exercised from the date of the separation.</ElementDefenition>
      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
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    <Row>
      <Id>8</Id>
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      <Level>1</Level>
      <ElementName>twc_StockOptionExpirationFutureImpact</ElementName>
      <ElementPrefix>twc</ElementPrefix>
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      <BalanceType>debit</BalanceType>
      <PeriodType>duration</PeriodType>
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      <IsSegmentTitle>false</IsSegmentTitle>
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      <IsReverseSign>false</IsReverseSign>
      <PreferredLabelRole>terselabel</PreferredLabelRole>
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      <OriginalInstanceReportColumns />
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      <ElementReferences>No authoritative reference available.</ElementReferences>
      <IsTotalLabel>false</IsTotalLabel>
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    <Row>
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      <ElementPrefix>us-gaap</ElementPrefix>
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      <ShortDefinition>No definition available.</ShortDefinition>
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      </Cells>
      <OriginalInstanceReportColumns />
      <ElementDataType>xbrli:monetaryItemType</ElementDataType>
      <SimpleDataType>monetary</SimpleDataType>
      <ElementDefenition>The portion of the difference between total income tax expense (benefit) as reported in the Income Statement and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to changes in the income tax rates under enacted tax laws in the period.</ElementDefenition>
      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 109
 -Paragraph 27

</ElementReferences>
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  </Rows>
  <Footnotes />
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  <NumberOfRows>8</NumberOfRows>
  <HasScenarios>false</HasScenarios>
  <MonetaryRoundingLevel>Millions</MonetaryRoundingLevel>
  <SharesRoundingLevel>UnKnown</SharesRoundingLevel>
  <PerShareRoundingLevel>UnKnown</PerShareRoundingLevel>
  <HasPureData>true</HasPureData>
  <SharesShouldBeRounded>true</SharesShouldBeRounded>
</InstanceReport>
