| **Productivity, Integration and Restructuring Initiatives (Details) (USD $)In Millions, unless otherwise specified** | 3 Months Ended                                                                                                                                                                                                                           | 12 Months Ended                                                                                                                                         |
|----------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------|
||
| Productivity and Reinvestment [Member]                                                                               |                                                                                                                                                                                                                                     |                                                                                                                                                    |   |
| **Productivity, Integration and Restructuring Initiatives Disclosures**                                              |                                                                                                                                                                                                                                     |                                                                                                                                                    |   |
| Accrued Balance, Beginning Balance                                                                                   | $ 285us-gaap_RestructuringReserve/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember                                                                                                       |                                                                                                                                                    |   |
| Cost incurred                                                                                                        | 90us-gaap_RestructuringCharges/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember                                                                                                          | 86us-gaap_RestructuringCharges/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember                         |   |
| Payments                                                                                                             | (145)us-gaap_PaymentsForRestructuring/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember                                                                                                   |                                                                                                                                                    |   |
| Noncash and exchange                                                                                                 | (24)us-gaap_RestructuringReserveTranslationAndOtherAdjustment/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember                                                                           |                                                                                                                                                    |   |
| Accrued Balance, Ending Balance                                                                                      | 206us-gaap_RestructuringReserve/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember                                                                                                         |                                                                                                                                                    |   |
| Restructuring and related costs incurred to date                                                                     | 1,455us-gaap_RestructuringAndRelatedCostCostIncurredToDate1/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember                                                                             |                                                                                                                                                    |   |
| Integration of German Bottling and Distribution Operation [Member]                                                   |                                                                                                                                                                                                                                     |                                                                                                                                                    |   |
| **Productivity, Integration and Restructuring Initiatives Disclosures**                                              |                                                                                                                                                                                                                                     |                                                                                                                                                    |   |
| Accrued Balance, Beginning Balance                                                                                   | 101us-gaap_RestructuringReserve/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_IntegrationOfGermanBottlingAndDistributionOperationMember                                                                                 |                                                                                                                                                    |   |
| Cost incurred                                                                                                        | 35us-gaap_RestructuringCharges/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_IntegrationOfGermanBottlingAndDistributionOperationMember                                                                                  | 42us-gaap_RestructuringCharges/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_IntegrationOfGermanBottlingAndDistributionOperationMember |   |
| Accrued Balance, Ending Balance                                                                                      | 77us-gaap_RestructuringReserve/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_IntegrationOfGermanBottlingAndDistributionOperationMember                                                                                  |                                                                                                                                                    |   |
| Restructuring and related costs incurred to date                                                                     | 870us-gaap_RestructuringAndRelatedCostCostIncurredToDate1/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_IntegrationOfGermanBottlingAndDistributionOperationMember                                                       |                                                                                                                                                    |   |
| Number of German bottling and distribution operations for which integration initiatives began in 2008                |                                                                                                                                                                                                                                     |                                                                                                                                                    | 18ko_NumberOfOperationalUnitsInvolvedInIntegrationInitiatives/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_IntegrationOfGermanBottlingAndDistributionOperationMember |
| Severance pay and benefits | Productivity and Reinvestment [Member]                                                  |                                                                                                                                                                                                                                     |                                                                                                                                                    |   |
| **Productivity, Integration and Restructuring Initiatives Disclosures**                                              |                                                                                                                                                                                                                                     |                                                                                                                                                    |   |
| Accrued Balance, Beginning Balance                                                                                   | 260us-gaap_RestructuringReserve/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= us-gaap_EmployeeSeveranceMember                               |                                                                                                                                                    |   |
| Cost incurred                                                                                                        | 22us-gaap_RestructuringCharges/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= us-gaap_EmployeeSeveranceMember                                |                                                                                                                                                    |   |
| Payments                                                                                                             | (87)us-gaap_PaymentsForRestructuring/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= us-gaap_EmployeeSeveranceMember                          |                                                                                                                                                    |   |
| Noncash and exchange                                                                                                 | (11)us-gaap_RestructuringReserveTranslationAndOtherAdjustment/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= us-gaap_EmployeeSeveranceMember |                                                                                                                                                    |   |
| Accrued Balance, Ending Balance                                                                                      | 184us-gaap_RestructuringReserve/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= us-gaap_EmployeeSeveranceMember                               |                                                                                                                                                    |   |
| Outside Services [Member] | Productivity and Reinvestment [Member]                                                   |                                                                                                                                                                                                                                     |                                                                                                                                                    |   |
| **Productivity, Integration and Restructuring Initiatives Disclosures**                                              |                                                                                                                                                                                                                                     |                                                                                                                                                    |   |
| Accrued Balance, Beginning Balance                                                                                   | 4us-gaap_RestructuringReserve/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= ko_OutsideServicesMember                                        |                                                                                                                                                    |   |
| Cost incurred                                                                                                        | 18us-gaap_RestructuringCharges/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= ko_OutsideServicesMember                                       |                                                                                                                                                    |   |
| Payments                                                                                                             | (13)us-gaap_PaymentsForRestructuring/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= ko_OutsideServicesMember                                 |                                                                                                                                                    |   |
| Noncash and exchange                                                                                                 | 0us-gaap_RestructuringReserveTranslationAndOtherAdjustment/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= ko_OutsideServicesMember           |                                                                                                                                                    |   |
| Accrued Balance, Ending Balance                                                                                      | 9us-gaap_RestructuringReserve/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= ko_OutsideServicesMember                                        |                                                                                                                                                    |   |
| Other direct costs [Member] | Productivity and Reinvestment [Member]                                                 |                                                                                                                                                                                                                                     |                                                                                                                                                    |   |
| **Productivity, Integration and Restructuring Initiatives Disclosures**                                              |                                                                                                                                                                                                                                     |                                                                                                                                                    |   |
| Accrued Balance, Beginning Balance                                                                                   | 21us-gaap_RestructuringReserve/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= ko_OtherDirectCostsMember                                      |                                                                                                                                                    |   |
| Cost incurred                                                                                                        | 50us-gaap_RestructuringCharges/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= ko_OtherDirectCostsMember                                      |                                                                                                                                                    |   |
| Payments                                                                                                             | (45)us-gaap_PaymentsForRestructuring/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= ko_OtherDirectCostsMember                                |                                                                                                                                                    |   |
| Noncash and exchange                                                                                                 | (13)us-gaap_RestructuringReserveTranslationAndOtherAdjustment/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= ko_OtherDirectCostsMember       |                                                                                                                                                    |   |
| Accrued Balance, Ending Balance                                                                                      | $ 13us-gaap_RestructuringReserve/ ko_ProductivityIntegrationAndRestructuringInitiativesAxis= ko_ProductivityAndReinvestmentMember/ us-gaap_RestructuringCostAndReserveAxis= ko_OtherDirectCostsMember                                    |                                                                                                                                                    |   |

| X                                                                                                                                                                                                                                                                                                                                                                                |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the number of acquired operational units that are subject to integration initiatives during the reporting period.
+ References
No definition available.
+ Details**Name:**ko_NumberOfOperationalUnitsInvolvedInIntegrationInitiatives**Namespace Prefix:**ko_**Data Type:**xbrli:integerItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585
+ Details**Name:**us-gaap_PaymentsForRestructuring**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of costs incurred to date for the specified restructuring cost.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4
+ Details**Name:**us-gaap_RestructuringAndRelatedCostCostIncurredToDate1**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4
+ Details**Name:**us-gaap_RestructuringCharges**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4
+ Details**Name:**us-gaap_RestructuringReserve**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**instant |
| X                                                                                                                                                                   |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_RestructuringReserveRollForward**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of change in the restructuring reserve related to foreign currency translation adjustments and any other adjustments not separately disclosed or provided for elsewhere in the Taxonomy.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869
+ Details**Name:**us-gaap_RestructuringReserveTranslationAndOtherAdjustment**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                              |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**ko_ProductivityIntegrationAndRestructuringInitiativesAxis=ko_IntegrationOfGermanBottlingAndDistributionOperationMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                                                      |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**ko_ProductivityIntegrationAndRestructuringInitiativesAxis=ko_ProductivityAndReinvestmentMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                         |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_RestructuringCostAndReserveAxis=ko_OtherDirectCostsMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                        |
|----------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_RestructuringCostAndReserveAxis=ko_OutsideServicesMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |
| X                                                                                                                                                               |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_RestructuringCostAndReserveAxis=us-gaap_EmployeeSeveranceMember**Namespace Prefix:****Data Type:**na**Balance Type:****Period Type:** |