Intangible Assets,net (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets

Schedule of Finite-Lived Intangible Assets

	December 31,
($ in millions)	2017		2016
Acquired Rexam intangibles (net of accumulated amortization of $246 million at December 31, 2017, and $62 million at December 31, 2016)	$	2,303	$	1,766
Capitalized software (net of accumulated amortization of $129 million at December 31, 2017, and $87 million at December 31, 2016)		84		79
Other intangibles (net of accumulated amortization of $163 million at December 31, 2017, and $143 million at December 31, 2016)		75		89
	$	2,462	$	1,934