v2.4.0.8
Derivative and Financial Instruments - FX Notional (Details 5)
In Millions, unless otherwise specified
Jun. 30, 2013
Sell U.S. dollar, buy other currencies [Member]
USD ($)
Dec. 31, 2012
Sell U.S. dollar, buy other currencies [Member]
USD ($)
Jun. 30, 2013
Buy U.S. dollar, sell other currencies [Member]
USD ($)
Dec. 31, 2012
Buy U.S. dollar, sell other currencies [Member]
USD ($)
Jun. 30, 2013
Buy British pound, sell other currencies [Member]
GBP (£)
Dec. 31, 2012
Buy Euro Sell British Pound [Member]
EUR (€)
Trading Activity, Gains and Losses, Net [Line Items]            
Net notional position of foreign currency exchange derivatives $ 1,833 [1] $ 2,573 [1] $ 25 [2] $ 140 [2] £ 47 € 96
[1] *Plans for which ConocoPhillips is not the primary obligor—primarily those administered by equity affiliates.
[2] **Primarily euro, Canadian dollar and Norwegian krone.