Goodwill (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Goodwill
Balance at the beginning of the period	$ 4,475
Transfer to assets held for sale	(51)
Effects of currency exchange	(14)
Balance at the end of the period	4,410
Goodwill	4,475	$ 4,475
Beverage Asia Pacific
Goodwill
Balance at the end of the period	78
Percentage of fair value exceeding carrying value		11.00%
Goodwill	78
Goodwill not in assets held for sale	27
Beverage AMEA
Goodwill
Balance at the end of the period	101
Percentage of fair value exceeding carrying value		15.00%
Goodwill	101
Beverage packaging, North And Central America
Goodwill
Balance at the beginning of the period	1,275
Balance at the end of the period	1,275
Goodwill	1,275	$ 1,275
Beverage packaging, South America
Goodwill
Balance at the beginning of the period	1,299
Balance at the end of the period	1,299
Goodwill	1,299	1,299
Beverage packaging, Europe
Goodwill
Balance at the beginning of the period	1,435
Effects of currency exchange	(12)
Balance at the end of the period	1,423
Goodwill	1,435	1,435
Aerospace
Goodwill
Balance at the beginning of the period	40
Balance at the end of the period	40
Goodwill	40	40
Other
Goodwill
Balance at the beginning of the period	426
Transfer to assets held for sale	(51)
Effects of currency exchange	(2)
Balance at the end of the period	373
Goodwill	426	$ 426
Beverage packaging China | Beverage Asia Pacific
Goodwill
Balance at the end of the period	51
Goodwill	$ 51