Stock Incentive Plans (Tables)

12 Months Ended

Dec. 31, 2016

Stock Incentive Plans [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	Risk Free Rates	Volatility(1)	Dividend Yield
2015-2017 Program	0.16% - 1.16%	13.64% - 42.75%	4.818%
2016-2018 Program	0.40% - 1.07%	15.75% - 38.61%	5.039%
(1) Figures use 50% historical and 50% implied volatility.

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

		Year Ended December 31,
	2016		2015		2014
Stock options	$	266	$	698	$	912
Restricted stock		28,603		30,146		31,163
	$	28,869	$	30,844	$	32,075

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

	Restricted Stock
	Number of	Weighted-Average
	Shares	Grant Date
	(000's)	Fair Value
Non-vested at December 31, 2015	638	$	62.00
Vested	(396)		64.36
Granted	785		59.42
Terminated	(40)		62.64
Non-vested at December 31, 2016	987	$	58.98