Restructuring and Other - Narrative (Details) $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Apr. 30, 2022 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) employee	Dec. 31, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Gain (loss) on restructuring			$ (72)	$ 106	$ 20
Restructuring			23	35	29
Other restructuring costs			19	14	(42)
Pre-tax gain from disposal of business			0	0	(101)
Transit Packaging | Discontinued Operations, Disposed of by Sale
Restructuring Cost and Reserve [Line Items]
Pre-tax gain from disposal of business	$ 113
Transit Packaging
Restructuring Cost and Reserve [Line Items]
Severance payments			11
Americas Beverage
Restructuring Cost and Reserve [Line Items]
Other restructuring costs					30
Termination | European Beverage and Other
Restructuring Cost and Reserve [Line Items]
Restructuring			9
Other Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring			8	6	$ 19
Other Exit Costs | European Beverage and Other
Restructuring Cost and Reserve [Line Items]
Restructuring			3
Fines
Restructuring Cost and Reserve [Line Items]
Other restructuring costs			11
Tax Indemnity Charges | European Tinplate
Restructuring Cost and Reserve [Line Items]
Other restructuring costs			4
Employee Severance
Restructuring Cost and Reserve [Line Items]
Severance payments			19
Closure of Production Facility Globally
Restructuring Cost and Reserve [Line Items]
Restructuring accrual		$ 22	22
Closure of Production Facility Globally | Batesville, Mississippi
Restructuring Cost and Reserve [Line Items]
Gain (loss) on restructuring		(19)
Expected cost		4	4
Closure of Production Facility Globally | Dong Nai, Vietnam
Restructuring Cost and Reserve [Line Items]
Gain (loss) on restructuring		(19)
Closure of Production Facility Globally | Ho Chi Minh City, Vietnam and Singapore
Restructuring Cost and Reserve [Line Items]
Gain (loss) on restructuring		(8)
Closure of Production Facility Globally | Decatur, Illinois
Restructuring Cost and Reserve [Line Items]
Gain (loss) on restructuring		(5)
Closure of Production Facility Globally | Termination Benefits and Other Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring			11
Internal Reorganization and Headcount Reduction | Transit Packaging
Restructuring Cost and Reserve [Line Items]
Restructuring accrual				20
Overhead Cost Reduction | Transit Packaging
Restructuring Cost and Reserve [Line Items]
Restructuring				$ 29
Number of positions to be eliminated | employee				600
Restructuring accrual		$ 7	$ 7