ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2011

Included in other operating income were the following:

	Years Ended December 31,
	2011		2010		2009
		($ in millions)
Gains (losses) on disposition of property, plant and equipment, net	$	1.4	$	1.1	$	1.6
Amortization of 2007 gain on intangible asset sale (recognized through 2012)		1.2		1.2		1.1
Gains on sale of land		0.3		-		3.7
Gains on dispositions of former manufacturing facilities		3.7		-		1.2
Gains on insurance recoveries		1.9		-		-
Gains on sale of other assets		-		-		0.8
Other		0.3		0.2		0.7
Other operating income	$	8.8	$	2.5	$	9.1

Asset retirement obligation activity

The activity of our asset retirement obligation was as follows:

	December 31,
	2011			2010
	($ in millions)
Beginning balance	$	70.5		$	70.2
Accretion		5.0			5.0
Spending		(7.3	)		(9.9	)
Currency translation adjustments		(0.2	)		0.6
Adjustments		(0.1	)		4.6
Ending balance	$	67.9		$	70.5

Other Assets

Included in other assets were the following:

	December 31,
	2011		2010
	($ in millions)
Investments in non-consolidated affiliates	$	27.6	$	25.9
Intangible assets (less accumulated amortization of $6.9 million and $5.0 million, respectively)		19.2		15.2
Deferred debt issuance costs		14.2		16.4
Interest rate swaps		13.8		5.3
Other		10.8		9.5
Other assets	$	85.6	$	72.3

Schedule of assumptions for the Black-Scholes option pricing model

The fair value of each option granted, which typically vests ratably over three years, but not less than one year, was estimated on the date of grant, using the Black-Scholes option-pricing model with the following weighted-average assumptions:

	2011			2010			2009
Dividend yield		4.32	%		4.32	%		4.26	%
Risk-free interest rate		3.05	%		3.00	%		2.32	%
Expected volatility		42	%		42	%		40	%
Expected life (years)		7.0			7.0			7.0
Grant fair value (per option)	$	5.48		$	4.61		$	3.85
Exercise price	$	18.78		$	15.68		$	14.28
Shares granted		575,000			803,750			866,250