STOCK-BASED COMPENSATION. (Tables) |
3 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mar. 31, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Rollforward of stock options | The following table summarizes the status of, and changes in, our stock options during the first quarter of 2017.
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Rollforward of nonvested restricted shares and restricted stock units | The following table summarizes the status of, and changes in, our nonvested restricted shares and restricted stock units during the first quarter of 2017.
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Future stock-based compensation expense | The following table presents the compensation expense (in millions) to be recognized over the remaining vesting periods of the stock-based awards outstanding at March 31, 2017. Estimated future compensation expense will change to reflect future option grants, future awards of unrestricted shares and restricted stock units, changes in the probability of performance thresholds being met, and adjustments for actual forfeitures.
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