Postretirement and Other Benefits Pension and OPEB Benefits (Tables)

9 Months Ended

Sep. 30, 2013

Postretirement and Other Benefits [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

The components of net pension and OPEB benefit costs for U.S. employees and net pension benefit costs for French employees during the three months and nine months ended September 30, 2013 and 2012 were as follows ($ in millions):



	Three Months Ended September 30,
	U.S. Pension Benefits						French Pension Benefits						U.S. OPEB Benefits
	2013			2012			2013			2012			2013			2012
Service cost	$	—		$	—		$	0.3		$	0.2		$	0.1		$	—
Interest cost	1.3			1.4			0.2			0.3			—			—
Expected return on plan assets	(1.7		)	(1.9		)	(0.1		)	(0.1		)	—			—
Amortizations and other	1.5			1.4			0.3			0.1			(0.3		)	—
Curtailment benefit	—			—			—			—			(3.2		)	—
Net periodic benefit cost	$	1.1		$	0.9		$	0.7		$	0.5		$	(3.4	)	$	—



	Nine Months Ended September 30,
	U.S. Pension Benefits						French Pension Benefits						U.S. OPEB Benefits
	2013			2012			2013			2012			2013			2012
Service cost	$	—		$	—		$	0.9		$	0.7		$	0.1		$	0.1
Interest cost	3.9			4.2			0.6			0.8			0.1			0.3
Expected return on plan assets	(5.3		)	(5.7		)	(0.3		)	(0.4		)	—			—
Amortizations and other	5.0			4.4			0.8			0.2			(0.7		)	—
Curtailment benefit	—			—			—			—			(3.2		)	—
Net periodic benefit cost	$	3.6		$	2.9		$	2.0		$	1.3		$	(3.7	)	$	0.4