Employee Benefit Obligations - Components of net periodic benefit cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Ball-sponsored plans:
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]		Selling, General and Administrative Expense	Selling, General and Administrative Expense	Selling, General and Administrative Expense
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Selling, General and Administrative Expense	Selling, General and Administrative Expense	Selling, General and Administrative Expense
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]		Selling, General and Administrative Expense	Selling, General and Administrative Expense	Selling, General and Administrative Expense
Settlement losses and other one-time charges (a)		$ 10
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Settlement and Curtailment Gain (Loss), Statement of Income or Comprehensive Income [Extensible List]		Restructuring and Other Activities	Restructuring and Other Activities	Restructuring and Other Activities
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Immediate Recognition of Actuarial Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Selling, General and Administrative Expense	Selling, General and Administrative Expense	Selling, General and Administrative Expense
Total net periodic benefit cost		$ 79
Selling, general and administrative
Ball-sponsored plans:
Non-service pension income		33	$ 42	$ 27
Forecast
Ball-sponsored plans:
Total net periodic benefit cost	$ 22
Defined Benefit Pension Plans
Ball-sponsored plans:
Service cost		98	96	77
Interest cost		101	86	128
Expected return on plan assets		(169)	(182)	(204)
Amortization of prior service cost		3	4	4
Settlement losses and other one-time charges (a)		14	135	120
Settlements and other		(20)	(362)
Recognized net actuarial loss (gain)		32	50	45
Net periodic benefit cost for Ball sponsored plans		79	189	170
Non-service pension income		1	2
Expected benefit payments
Payments to participants		340	293
Other post retirement benefits
Ball-sponsored plans:
Total net periodic benefit cost		4	1	3
United States | Defined Benefit Pension Plans
Ball-sponsored plans:
Service cost		88	83	64
Interest cost		54	50	72
Expected return on plan assets		(108)	(117)	(119)
Amortization of prior service cost		1	1	2
Settlement losses and other one-time charges (a)		14	135	120
Settlements and other		(20)	(362)
Recognized net actuarial loss (gain)		28	45	40
Net periodic benefit cost for Ball sponsored plans		77	197	179
Non-service pension income		2
Expected benefit payments
2023		282
2024		279
2025		283
2026		293
2027		296
Years 2028 through 2032		1,570
Payments to participants		200	143
United States | Defined Benefit Pension Plans | Forecast
Ball-sponsored plans:
Contributions to pension plans	$ 33
Non U.S. | Defined Benefit Pension Plans
Ball-sponsored plans:
Service cost		10	13	13
Interest cost		47	36	56
Expected return on plan assets		(61)	(65)	(85)
Amortization of prior service cost		2	3	2
Recognized net actuarial loss (gain)		4	5	5
Net periodic benefit cost for Ball sponsored plans		2	(8)	$ (9)
Non-service pension income		(1)	2
Expected benefit payments
Payments to participants		$ 140	$ 150