Annual report pursuant to Section 13 and 15(d)

INVESTMENTS (Details)

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INVESTMENTS (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Trading Securities      
Trading securities, net unrealized gains (losses) $ 40ko_TradingSecuritiesUnrealizedHoldingGainsLosses $ 12ko_TradingSecuritiesUnrealizedHoldingGainsLosses $ 19ko_TradingSecuritiesUnrealizedHoldingGainsLosses
Marketable securities 315ko_FairValueOfTradingSecuritiesIncludedInMarketableSecuritiesCaptionOnBalanceSheet 286ko_FairValueOfTradingSecuritiesIncludedInMarketableSecuritiesCaptionOnBalanceSheet  
Other assets 94ko_FairValueOfTradingSecuritiesIncludedInOtherAssetsCaptionOnBalanceSheet 86ko_FairValueOfTradingSecuritiesIncludedInOtherAssetsCaptionOnBalanceSheet  
Trading Securities $ 409us-gaap_TradingSecurities $ 372us-gaap_TradingSecurities