Stock Compensation Plans Level 3 (Tables)

12 Months Ended

Dec. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock based Compensation Plans

	For the years ended December 31,
	2015			2014			2013
Stock-based compensation plans expense	$	78		$	98		$	69
Income tax benefit	(27		)	(34		)	(24		)
Total stock-based compensation plans expense, after-tax	$	51		$	64		$	45

The risk-free rate for periods within the contractual life of the option

	For the years ended December 31,
	2015				2014				2013
Expected dividend yield	1.8%				1.7%				1.7%
Expected annualized spot volatility	22.1	%	-	39.4%	25.9	%	-	57.8%	31.1	%	-	48.1%
Weighted average annualized volatility	32.7%				35.1%				47.3%
Risk-free spot rate	—	%	-	2.6%	0.1	%	-	2.8%	0.1	%	-	1.9%
Expected term	5.0 years				5.0 years				5.0 years

Summary of the status of non-qualified stock options included in the company's stock plans

	Number of Options (in thousands)		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
	For the year ended December 31, 2015
Outstanding at beginning of year	3,745		$	29.64
Granted	862		$	41.25
Exercised	(754	)	$	22.18
Forfeited	—		$	—
Expired	(53	)	$	76.80
Outstanding at end of year	3,800		$	33.09	6.5 years	$	45
Outstanding, fully vested and expected to vest	3,749		$	33.53	6.5 years	$	42
Exercisable at end of year	2,351		$	30.34	5.2 years	$	36

	For the years ended December 31,
	2015				2014				2013
Volatility of common stock	21.4%				31.6%				42.8%
Average volatility of peer companies	14.0	%	-	24.0%	17.0	%	-	29.0%	20.0	%	-	36.0%
Average correlation coefficient of peer companies	54.0%				62.0%				76.0%
Risk-free spot rate	1.1%				0.7%				0.4%
Term	3.0 years				3.0 years				3.0 years

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable [Table Text Block]

	Restricted Stock and Restricted Stock Units				Performance Shares
	Number of Shares (in thousands)		Weighted-Average Grant-Date Fair Value		Number of Shares (in thousands)		Weighted-Average Grant date Fair Value
Non-vested shares	For the year ended December 31, 2015
Non-vested at beginning of year	7,232		$	26.59	1,063		$	30.55
Granted	1,603		$	42.25	398		$	42.40
Performance based adjustment					407		$	24.15
Vested	(2,708	)	$	20.95	(814	)	$	24.15
Forfeited	(259	)	$	36.90	(279	)	$	33.47
Non-vested at end of year	5,868		$	33.12	775		$	37.35