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Retirement Plans and Other Retiree Benefits - Additional Information, U.S. Plans (Details) - Pension Plans - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items] |  |
Long-term rate of return on plan assets | 6.30% |
United States |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Percentage of investments in Company's common stock | 3.00% | 5.00%
U.S. plans assets sold to Company (in shares) | 588,334 | 384,004
U.S. plans assets purchased to Company (in shares) | 0 | 0
Dividends received by plans on the Company’s common stock | $ 2 | $ 3
Long-term rate of return on plan assets |  | 6.60%

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- Definition Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Expected Long Term Return On Plan Assets + References No definition available. + Details
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Namespace Prefix: | cl_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition The amount of dividends received by the defined benefit plan on the Company's common stock. + References No definition available. + Details
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Namespace Prefix: | cl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The percentage of equity securities of the defined benefit plan invested in the Company's common stock. + References No definition available. + Details
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Namespace Prefix: | cl_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Defined Benefit Plan, Plan Assets, Divestiture, Shares + References No definition available. + Details
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- Definition Defined Benefit Plan, Plan Assets, Purchases, Shares + References No definition available. + Details
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Namespace Prefix: | cl_
Data Type: | xbrli:sharesItemType
Balance Type: | na
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |