| **Significant Operating and Nonoperating Items (Details) (USD $)In Millions, unless otherwise specified** | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended |
|-----------------------------------------------------------------------------------------------------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|-----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|
||
| **Other Operating Items**                                                                                 |           |           |           |           |           |           |           |           |           |           |            |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |   |   |   |   |   |   |   |   |   |   |   |
| Unusual or infrequent events charges                                                                      | $ 19           |           | $ 22           |           |           |           |           |           |           |           |            |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           | $ 1            | $ 84           | $ 22           | $ 12 | $ (2) | $ 50 |   |   |   | $ 7 | $ 15 |   |   |   |
| Impairment charge                                                                                         |           |           |           |           |           |           |           |           |           |           |            |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           | 1              |           |   |   |   |   |   |   |   |   |   |   |   |
| **Other Operating Charges**                                                                               |           |           |           |           |           |           |           |           |           |           |            |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |   |   |   |   |   |   |   |   |   |   |   |
| Other operating charges                                                                                   | 64             | 96             | 233            | 457            |           |           |           |           | 26             |           | 100             |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |   |   |   | 20 | 9 | 21 |   |   | 2 | 6 |   |
| Productivity, integration and restructuring initiatives                                                   |           | 89             |           | 370            |           |           |           | 10             |           | 18             |            |           |           |           |           | 12             | 37             |           | 14             | 44             | 59             | 177            | (6)            | (9)            | (5)            | (5)            | (5)            | (5)            |           |           |           |   |   |   |   |   |   |   |   |   |   |   |
| Costs Related To Exchange Of Equity Securities Of An Investee                                             |           |           |           |           | 9              | 35             |           |           |           |           |            |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |   |   |   |   |   |   |   |   |   |   |   |
| Number of German bottling and distribution operations for which integration initiatives began in 2008     |           |           |           |           |           |           |           |           |           |           |            |           |           |           |           |           |           | 18             |           |           |           |           |           |           |           |           |           |           |           |           |           |   |   |   |   |   |   |   |   |   |   |   |
| **Equity Income (Loss) - Net**                                                                            |           |           |           |           |           |           |           |           |           |           |            |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |   |   |   |   |   |   |   |   |   |   |   |
| Our proportionate share of unusual or infrequent items recorded by equity method investees                | 10             | 36             | (33)           | 40             |           |           |           |           |           |           |            |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |   |   |   |   |   |   |   |   |   |   | 14 |
| **Other Income (Loss) - Net**                                                                             |           |           |           |           |           |           |           |           |           |           |            |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |   |   |   |   |   |   |   |   |   |   |   |
| Net gain on exchange of equity securities                                                                 |           |           |           |           |           |           |           |           |           |           |            | 417            |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |   |   |   |   |   |   |   |   |   |   |   |
| Impairment of equity method investments                                                                   |           | 3              |           | 41             |           |           |           |           | 3              |           | 41              |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |   |   |   |   |   |   |   |   |   |   |   |
| Gain on sale of equity method investment                                                                  |           |           |           |           |           |           | 102            |           |           |           |            |           |           |           | 102            |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |   |   |   |   |   |   |   |   |   |   |   |
| Gain (Loss) due to finalization of working capital adjustment related to sale of bottlers                 |           | (5)            |           |           |           |           |           |           |           |           |            |           | (5)            | (5)            |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |   |   |   |   |   |   |   |   |   |   |   |
| Gain (loss) form issuance of additional shares by an equity investee                                      | $ 0            | $ 0            | $ 92           | $ 0            |           |           |           |           |           | $ 92           |            |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |           |   |   |   |   |   |   |   |   |   |   |   |

| X                                                                                                                                                                                                                                                                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The charge against earnings (recorded as a component of operating income) resulting from the aggregate write down of certain assets from their carrying value to their fair value.
+ References
No definition available.
+ Details**Name:**ko_AssetImpairmentChargesOperating**Namespace Prefix:**ko_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                    |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Other expenses due to the gain generated when the equity investment in a third party was exchanged by a cost method investment.
+ References
No definition available.
+ Details**Name:**ko_CostsRelatedToExchangeOfEquitySecuritiesOfInvestee**Namespace Prefix:**ko_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**ko_EquityIncomeLossNetAbstract**Namespace Prefix:**ko_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount represents the entity's proportionate share of certain gains and (losses) recorded by its equity method investees in the period. These gains and (losses) are the result of material events or transactions that are abnormal or significantly different from typical activities or are not reasonably expected to recur in the foreseeable future; but not both, and therefore does not meet both criteria for classification as an extraordinary item. The entity has recorded its proportionate share of these items as a component of equity income (loss) - net.
+ References
No definition available.
+ Details**Name:**ko_EquityMethodInvestmentProportionateShareOfUnusualOrInfrequentItemsRecordedByInvestees**Namespace Prefix:**ko_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This item represents a decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings.
+ References
No definition available.
+ Details**Name:**ko_EquityMethodInvestmentsImpairment**Namespace Prefix:**ko_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Represents the gain recognized due to the exchange of equity securities net of other general expenses items. Gain originated from the exchange of shares on one investee to shares on a new merged company with was measured at the stock price date.
+ References
No definition available.
+ Details**Name:**ko_NetGainOnExchangeOfEquitySecurities**Namespace Prefix:**ko_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| 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                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**ko_OtherIncomeLossNetAbstract**Namespace Prefix:**ko_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**ko_OtherOperatingChargesDisclosureAbstract**Namespace Prefix:**ko_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**ko_OtherOperatingItemsAbstract**Namespace Prefix:**ko_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount charged against income statement line items in the period for unusual events that are not reasonably expected to recur in the foreseeable future.
+ References
No definition available.
+ Details**Name:**ko_UnusualOrInfrequentEventCharges**Namespace Prefix:**ko_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount charged against operating income in the period for material events or transactions that are abnormal or significantly different from typical activities or are not reasonably expect to recur in the foreseeable future; but not both, and therefore does not meet both criteria for classification as an extraordinary item.
+ References
No definition available.
+ Details**Name:**ko_UnusualOrInfrequentItemOperating**Namespace Prefix:**ko_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The gain (loss) resulting from the sale of a disposal group that is not a discontinued operation. It is included in income from continuing operations before income taxes in the income statement.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 37, 45 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 47 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2443-110228
+ Details**Name:**us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                      |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This item represents the amount of gain (loss) arising from the disposal of an equity method investment.
+ References
No definition available.
+ Details**Name:**us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The profit or loss on sales of previously unissued stock by equity investees made to investors outside the consolidated group that is not reported as operating income. Represents the difference in the parent company's carrying amount of the equity interest in the subsidiary or equity investee immediately before and after the transaction.
+ References
No definition available.
+ Details**Name:**us-gaap_GainOrLossOnSaleOfPreviouslyUnissuedStockByEquityInvestee**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.
+ References
Reference 1: 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=6394695&loc=d3e140864-122747Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4Reference 3: 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=6943989&loc=d3e3602-108585Reference 4: 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 5: 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=6394695&loc=d3e140904-122747
+ Details**Name:**us-gaap_RestructuringCharges**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |