Earnings and Dividends Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings and Dividends Per Share
Net earnings attributable to Ball Corporation	$ 197	$ 119	$ 314	$ 244
Basic weighted average common shares	332,825	348,221	333,528	349,212
Effect of dilutive securities (in shares)	8,812	6,683	8,705	7,064
Weighted average shares applicable to diluted earnings per share	341,637	354,904	342,233	356,276
Per basic share (in dollars per share)	$ 0.59	$ 0.34	$ 0.94	$ 0.70
Per diluted share (in dollars per share)	$ 0.58	$ 0.34	$ 0.92	$ 0.68
Options excluded from EPS calculation
Number of outstanding options excluded from computation of diluted earnings per share	0	5,000	1,000	5,000
Dividends declared and paid
Dividends declared (in dollars per share)	$ 0.15	$ 0.10	$ 0.25	$ 0.20
Dividends paid (in dollars per share)	$ 0.15	$ 0.10	$ 0.25	$ 0.20