Incentive Compensation Plans Schedule of Nonvested Stock Activity (Tables)

12 Months Ended

Dec. 31, 2016

Summary of Stock Options Assumptions [Abstract]

Schedule of Nonvested Share Activity [Table Text Block]

A summary of the activity of our non-vested stock-settled awards, cash-settled awards and performance-based awards during 2016 is presented below (performance-based awards are shown at 100% of the shares originally granted).

	Stock-Settled Awards					Cash-Settled Awards				Performance-Based Awards
	Awards			Weighted- Average Grant-Date Fair Value (per award)		Awards		Weighted- Average Grant-Date Fair Value (per award)		Awards			Weighted- Average Grant-Date Fair Value (per award)
Non-vested as of January 1, 2016	2.0			$	18.53	0.1		$	18.75	7.1			$	17.50
Granted	1.1			21.87		0.0		22.54		3.3			19.58
Vested	(0.8		)	16.64		0.0		17.04		(1.3		)	11.92
Forfeited	0.0			19.80		0.0		19.83		(0.6		)	17.46
Non-vested as of December 31, 2016	2.3			$	20.84	0.1		$	20.49	8.5			$	19.16
Total unrecognized compensation expense remaining	$	23.7				$	1.7			$	90.0
Weighted-average years expected to be recognized over	1.2					1.3				1.7