Investments And Fair Value Measurements
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Dec. 31, 2012
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Investments And Fair Value Measurements | 4. Investments and Fair Value Measurements Short-term investments consisted of (in millions):
Short-term investments at December 31, 2012, by contractual maturity included (in millions):
All short-term investments are classified as available-for-sale and stated at fair value. Unrealized gains and losses are reflected as a component of Accumulated other comprehensive income (loss). The Company utilizes the market approach to measure fair value for its financial assets and liabilities. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. The Company’s short-term investments classified as Level 2 primarily utilize broker quotes in a non-active market for valuation of these securities. The Company’s fuel derivative contracts, which consist primarily of call options, collars (consisting of a purchased call option and a sold put option) and call spreads (consisting of a purchased call option and a sold call option), are valued using energy and commodity market data which is derived by combining raw inputs with quantitative models and processes to generate forward curves and volatilities. Heating oil, jet fuel and crude oil are the primary underlying commodities in the hedge portfolio. No changes in valuation techniques or inputs occurred during the year ended December 31, 2012. Assets and liabilities measured at fair value on a recurring basis are summarized below:
No significant transfers between Level 1 and Level 2 occurred during the year ended December 31, 2012. The Company’s policy regarding the recording of transfers between levels is to record any such transfers at the end of the reporting period. As of December 31, 2012, the Company had no exposure to European sovereign debt. |