INVESTMENTS - Narrative (Details) - USD ($) $ in Millions	Oct. 02, 2026	Dec. 31, 2025
Investments, Debt and Equity Securities [Abstract]
Solvency Funds of Insurance Captive	$ 2,890	$ 2,356

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

No definition available.

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