Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2015

Compensation and Retirement Disclosure [Abstract]

Fair value assumptions of stock options

	2015		2014
Dividend yield	2.00	%	2.00	%
Risk-free interest rate	2.00	%	2.00	%
Weighted average expected volatility	20.00	%	20.00	%
Weighted average expected life	6 years		6 years
Weighted average per share fair value of options	$3.08		$3.00

Summary of Company's Stock Option Activities

Stock Options	Shares		Weighted Average Exercise Price	Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value (000s)
Outstanding at December 31, 2013	8,034,243		$18.37
Granted	1,389,452		$17.45
Exercised	(933,143	)	$13.77
Forfeited or expired	(643,214	)	$23.50
Outstanding at December 31, 2014	7,847,338		$18.34	5.79	$	23,986
Options exercisable at December 31, 2014	5,076,676		$19.96	4.41	$	14,953
Granted	1,348,504		$17.95
Exercised	(1,019,935	)	$13.85
Forfeited or expired	(771,382	)	$27.19
Outstanding at September 30, 2015	7,404,525		$17.97	6.05	$	15,962
Options exercisable at September 30, 2015	4,957,789		$18.38	4.73	$	13,589

Summary of Company's Nonvested Stock Option Activities

Nonvested Stock Options	Shares		Weighted Average Grant Date Fair Value
Nonvested at December 31, 2013	3,110,523		$4.69
Granted	1,389,452		$3.00
Vested	(1,522,152	)	$4.92
Forfeited	(207,161	)	$4.38
Nonvested at December 31, 2014	2,770,662		$3.74
Granted	1,348,504		$3.08
Vested	(1,451,871	)	$4.20
Forfeited	(220,559	)	$3.28
Nonvested at September 30, 2015	2,446,736		$3.15

Summary of Restricted Stock Awards Activity (Excluding Salary Shares)

Restricted Stock	Shares		Weighted Average Grant Date Fair Value
Outstanding at December 31, 2013	1,511,765		$13.92
Granted	1,177,168		$17.35
Vested	(538,877	)	$14.12
Forfeited	(167,930	)	$15.26
Outstanding at December 31, 2014	1,982,126		$15.79
Granted	1,165,087		$18.05
Vested	(694,711	)	$15.59
Forfeited	(171,293	)	$16.80
Outstanding at September 30, 2015	2,281,209		$17.01