Incentive Based Compensation (Tables)

6 Months Ended

Jun. 30, 2017

Incentive Based Compensation Plans [Abstract]

Table of Incentive based compensation activity [Table Text Block]

The following table presents a summary of activity for the first six months of 2017: 

	Stock Options					Restricted Stock Awards & Units
	Number of Shares			Weighted Average Exercise Price		Awards		Weighted Average Grant Date Fair Value
Outstanding at December 31, 2016	11,915,533				$27.71	6,933,533			$14.44
Granted	799,591		(a)		$15.80	3,908,344			$16.37
Options Exercised/Stock Vested	(8,666	)			$7.22	(2,237,657	)		$17.61
Canceled	(2,009,085	)			$35.48	(529,721	)		$15.84
Outstanding at June 30, 2017	10,697,373				$25.37	8,074,499			$14.40

^(a)    The weighted average grant date fair value of stock option awards granted was $6.07 per share.