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INVESTMENTS - Narrative (Details) - USD ($) $ in Millions	Sep. 26, 2025	Dec. 31, 2024
Investments, Debt and Equity Securities [Abstract]
Solvency Funds of Insurance Captive	$ 2,219	$ 1,883

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- Definition

Represents solvency capital held by its wholly owned captive insurance companies.

+ References

No definition available.

+ Details

Name:	ko_SolvencyFundsOfInsuranceCaptive
Namespace Prefix:	ko_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration