GM was exposed to fluctuations in foreign currency exchange rates, interest rates, and certain commodity and equity prices. GM entered into a variety of foreign exchange, interest rate, and commodity forward contracts and options, to hedge these exposures. A risk management control system was utilized to monitor foreign exchange, interest rate, commodity and equity price risks, and related hedge positions. GM also measured the sensitivity of the fair value of financial instruments. The analysis assumed instantaneous, parallel shifts in exchange rates, interest rate yield curves and commodity and equity prices...