Taxes on Income - Foreign subsidiaries (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Foreign income taxes
Retained earnings	$ 5,803	$ 5,341
Amount of non-U.S. earnings that may be subject to incremental foreign taxes and U.S. state income tax upon distribution	655,000
Net income tax payments	$ 128	143	$ 107
Ball's Serbian subsidiary
Foreign income taxes
Tax relief as a percentage of the additional local investment	80.00%
Period Of Tax Relief	10 years
Tax relief remaining balance	$ 6
Brazilian Subsidiary
Foreign income taxes
Income tax reduction due to tax holidays	62	63	47
Aggregate tax relief over the income tax holiday period	$ 62	$ 63	$ 47
Tax holiday, benefit per share	$ 0.19	$ 0.18	$ 0.13
Polish Subsidiary
Foreign income taxes
Period Of Tax Relief	10 years
Tax relief remaining balance	$ 28
Income tax reduction due to tax holidays	34
Aggregate tax relief over the income tax holiday period	34
Non US Subsidiaries
Foreign income taxes
Retained earnings	$ 2,100