Stock-Based Compensation Plans (Schedule of Assumptions Used) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted-average dividend yield	3.01%	2.90%	2.40%
Weighted-average risk-free interest rate	1.50%	1.65%	1.60%
Weighted-average expected volatility	31.85%	35.39%	52.32%
Weighted-average expected life (in years)	5 years 3 months 18 days	5 years 3 months 18 days	5 years 3 months 18 days
Weighted-average fair value of options granted	$ 8.81	$ 8.92	$ 15.97