Intangible Assets,net (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets

Schedule of Finite-Lived Intangible Assets

	December 31,
($ in millions)	2016		2015
Acquired Rexam intangibles (net of accumulated amortization of $62 million at December 31, 2016)	$	1,766	$	—
Capitalized software (net of accumulated amortization of $87 million at December 31, 2016, and $116 million at December 31, 2015)		79		77
Other intangibles (net of accumulated amortization of $143 million at December 31, 2016, and $133 million at December 31, 2015)		89		118
	$	1,934	$	195