Restructuring and Other (Charges by Segment and Type) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring	$ 29	$ 19	$ 18
Termination benefits
Restructuring Cost and Reserve [Line Items]
Restructuring	10	8	14
Other exit costs
Restructuring Cost and Reserve [Line Items]
Restructuring	19	11	4
Other
Restructuring Cost and Reserve [Line Items]
Restructuring	3	(1)	5
Operating segments | Americas Beverage
Restructuring Cost and Reserve [Line Items]
Restructuring	0	0	1
Operating segments | European Beverage
Restructuring Cost and Reserve [Line Items]
Restructuring	3	0	0
Operating segments | Asia Pacific
Restructuring Cost and Reserve [Line Items]
Restructuring	1	1	3
Operating segments | Transit Packaging
Restructuring Cost and Reserve [Line Items]
Restructuring	19	19	6
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring	$ 3	$ 0	$ 3