MTM losses from fuel hedges settling in future periods and prior period gains (losses) on fuel contracts settled in the current period: The company utilizes certain derivative instruments that are economic hedges but do not qualify for hedge accounting under U.S. generally accepted accounting principles. The company records changes in the fair value of these economic hedges to Nonoperating income (expense): Miscellaneous, net in the statements of consolidated operations. During the three and twelve months ended December 31, 2014, the company recorded $225 million and $244 million, respectively, in MTM losses on economic hedges that will settle in future periods. For economic hedges that settled in the three and twelve months ended December 31, 2014, the company recorded MTM gains (losses) of ($18) million and $83 million, respectively, in prior periods. The figures above also include an insignificant amount of ineffectiveness on hedges that are designated for hedge accounting.