Goodwill (Tables)

6 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets, Net

Schedule of goodwill

($ in millions)	​ Beverage Packaging, North & Central America		​ Beverage Packaging, South America		​ Beverage Packaging, Europe		​ Aerospace		Other		Total
Balance at December 31, 2018	$	1,275	$	1,299	$	1,435	$	40	$	426	$	4,475
Transfer to assets held for sale		—		—		—		—		(51)		(51)
Effects of currency exchange		—		—		9		—		—		9
Balance at June 30, 2019	$	1,275	$	1,299	$	1,444	$	40	$	375	$	4,433