Goodwill (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Goodwill
Balance at the beginning of the period	$ 4,378
Effects of currency exchange	(54)
Balance at the end of the period	4,324
Accumulated impairment, goodwill	61	$ 62
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
Metal beverage packaging, Europe
Goodwill
Balance at the beginning of the period	1,483
Effects of currency exchange	(60)
Balance at the end of the period	1,423
Beverage packaging, South America
Goodwill
Balance at the beginning of the period	1,298
Balance at the end of the period	1,298
Aerospace & technologies
Goodwill
Balance at the beginning of the period	40
Balance at the end of the period	40
Other
Goodwill
Balance at the beginning of the period	282
Effects of currency exchange	6
Balance at the end of the period	$ 288