Goodwill (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill

Schedule of goodwill

($ in millions)	Metal  Beverage  Packaging,  Americas &  Asia			Metal  Beverage  Packaging,  Europe			Metal Food  & Household Products  Packaging			Aerospace &  Technologies		Total
Balance at December 31, 2013	$	740.7		$	1,037.2		$	613.2		$	8.6	$	2,399.7
Business disposition	(1.2		)	—			—			—		(1.2		)
Effects of currency exchange rates	—			(123.3		)	(20.7		)	—		(144.0		)
Balance at December 31, 2014	739.5			913.9			592.5			8.6		2,254.5
Business acquisition	—			—			35.5			—		35.5
Effects of currency exchange rates	—			(97.3		)	(16.2		)	—		(113.5		)
Balance at December 31, 2015	$	739.5		$	816.6		$	611.8		$	8.6	$	2,176.5