Employee Benefit Obligations - Components of net periodic benefit cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
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	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	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	Selling, General and Administrative Expense
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Settlement and Curtailment 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	Selling, General and Administrative Expense
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	Selling, General and Administrative Expense
Defined Benefit Pension Plans
Ball-sponsored plans:
Service cost	$ 5	$ 5	$ 14	$ 16
Interest cost	36	38	107	112
Expected return on plan assets	(43)	(48)	(126)	(141)
Amortization of prior service cost	1	2	2	3
Settlement losses and other one-time charges (a)		3		3
Recognized net actuarial loss (gain)	5	1	14	3
Total net periodic benefit cost	4	1	11	(4)
United States | Defined Benefit Pension Plans
Ball-sponsored plans:
Service cost	4	4	12	12
Interest cost	15	16	45	48
Expected return on plan assets	(22)	(22)	(66)	(65)
Amortization of prior service cost		1		1
Settlement losses and other one-time charges (a)		3		3
Recognized net actuarial loss (gain)	1	1	3	2
Total net periodic benefit cost	(2)	3	(6)	1
Non-U.S. | Defined Benefit Pension Plans
Ball-sponsored plans:
Service cost	1	1	2	4
Interest cost	21	22	62	64
Expected return on plan assets	(21)	(26)	(60)	(76)
Amortization of prior service cost	1	1	2	2
Recognized net actuarial loss (gain)	4		11	1
Total net periodic benefit cost	$ 6	$ (2)	$ 17	$ (5)