Stock and Incentive Programs for Employees (Tables)

12 Months Ended

Dec. 31, 2013

Black-Scholes-Merton Option Pricing Model

The assumptions used to determine the fair market value of the stock options granted during the years ended December 31, 2012 and 2011 were as follows:

	2012			2011
Expected volatility		39.71	%		36.69	%
Risk-free interest rate		1.18	%		2.54	%
Expected life (years)		6.25			6.25
Expected dividend yield		5.06	%		4.57	%

Summary of Stock Option Activity

Stock option awards as of December 31, 2012 and 2013, and changes during the year ended December 31, 2013, were as follows:

	Shares Under Option (thousands)			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value (millions)
Outstanding at December 31, 2012		4,726		$	18.90		6.2	$	2.1
Exercised		(203	)		10.57
Cancelled/forfeited/expired		(384	)		17.94
Outstanding at December 31, 2013		4,139			19.39		5.6		21.2
Vested and expected to vest at December 31, 2013		4,098			19.46		5.6		20.9
Exercisable at December 31, 2013		1,774		$	11.70		5.9	$	15.2

Nonvested Restricted Stock Unit Awards

Nonvested restricted stock unit awards as of December 31, 2013 and 2012, and changes during the year ended December 31, 2013 were as follows:

	Shares (thousands)			Weighted-Average Grant Date Fair Value
Nonvested at December 31, 2012		3,246		$	11.85
Granted		1,402			9.70
Vested		(2,023	)		10.25
Forfeited		(130	)		11.04
Nonvested at December 31, 2013		2,495		$	11.97

Nonvested Performance Share Unit Awards

Nonvested performance share unit awards as of December 31, 2013 and 2012, and changes during the year ended December 31, 2013, were as follows:

	Shares (thousands)		Weighted-Average Grant Date Fair Value
Nonvested at December 31, 2012		468	$	12.84
Granted		485		8.85
Nonvested at December 31, 2013		953	$	10.81