Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Share-Based Compensation (Tables) [Abstract]

Share-based compensation expense recorded in 'Selling and administrative expenses'

Share-based compensation expense and cash flow amounts were as follows:

	Year Ended December 31,
	2012		2011		2010
	(Dollars in millions)
Share-based compensation expense	$	45.4	$	43.9	$	41.1
Tax benefit	16.7		16.3		15.4
Share-based compensation expense, net of tax benefit	28.7		27.6		25.7
Cash received upon the exercise of stock options and from employee stock purchases	9.4		11.1		22.2
Excess tax benefits related to share-based compensation	8.3		8.1		51.0

Summary of restricted stock award activity

A summary of restricted stock award activity is as follows:

	Year Ended December 31, 2012		Weighted Average Grant-Date Fair Value
Nonvested at December 31, 2011	1,531,092		$	45.16
Granted	1,334,532		34.05
Vested	(594,128	)	28.73
Forfeited	(232,165	)	45.29
Nonvested at December 31, 2012	2,039,331		$	42.34

Schedule of Share-based Compensation, Stock Options, Activity

A summary of outstanding option activity under the plans is as follows:

	Year Ended December 31, 2012		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life	Aggregate Intrinsic Value (in millions)
Options Outstanding at December 31, 2011	1,884,780		$	37.92	5.6	$	11.0
Granted	369,782		36.27
Exercised	(218,281	)	9.90
Forfeited	(211,056	)	47.37
Options Outstanding at December 31, 2012	1,825,225		$	39.85	5.7	$	2.5
Vested and Exercisable	1,325,951		$	37.90	4.6	$	2.5

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The weighted-average fair values of the Company’s stock options and the assumptions used in applying the Black-Scholes option pricing model were as follows:

	Year Ended December 31,
	2012			2011			2010
Weighted-average fair value	$	18.59		$	33.92		$	25.70
Risk-free interest rate	0.9		%	2.0		%	2.8		%
Expected option life	5.0 years			5.0 years			5.0 years
Expected volatility	64.0		%	64.1		%	64.2		%
Dividend yield	0.6		%	0.6		%	0.6		%

Summary of performance unit activity

A summary of performance unit activity is as follows:

	Year Ended December 31, 2012		Weighted Average Remaining Contractual Life
Nonvested at December 31, 2011	260,989		1.5
Granted	218,368
Forfeited	(75,343	)
Vested	(117,382	)
Nonvested at December 31, 2012	286,632		1.5

Assumptions used in the valuations for grants

The assumptions used in the valuations for grants were as follows:

	Year Ended December 31,
	2012		2011		2010
Risk-free interest rate	0.4	%	1.0	%	1.7	%
Expected volatility	52.8	%	63.9	%	64.1	%
Dividend yield	0.6	%	0.6	%	0.6	%