Employee Benefit Obligations - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
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
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
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
Total net periodic benefit cost		$ 14
Selling, general and administrative
Ball-sponsored plans:
Non-service pension income		4	$ 32	$ 33
Forecast
Ball-sponsored plans:
Total net periodic benefit cost	$ 19
Defined Benefit Pension Plans
Ball-sponsored plans:
Service cost		18	21	37
Interest cost		142	149	84
Expected return on plan assets		(168)	(188)	(139)
Amortization of prior service cost		3	3	3
Recognized net actuarial loss		19	4	19
Settlement losses and other one-time charges (a)			4	14
Total net periodic benefit cost		14	(7)	18
Non-service pension income		(1)	3
Defined Benefit Pension Plans | U.S.
Ball-sponsored plans:
Service cost		15	16	27
Interest cost		60	63	37
Expected return on plan assets		(88)	(87)	(78)
Amortization of prior service cost		1	1	1
Recognized net actuarial loss		4	3	15
Settlement losses and other one-time charges (a)			4	14
Total net periodic benefit cost		(8)		16
Non-service pension income			3
Expected benefit payments
2025		232
2026		231
2027		230
2028		226
2029		224
Years 2030 through 2033		1,050
Defined Benefit Pension Plans | U.S. | Forecast
Ball-sponsored plans:
Contributions to pension plans	$ 32
Defined Benefit Pension Plans | Non-U.S.
Ball-sponsored plans:
Service cost		3	5	10
Interest cost		82	86	47
Expected return on plan assets		(80)	(101)	(61)
Amortization of prior service cost		2	2	2
Recognized net actuarial loss		15	1	4
Total net periodic benefit cost		22	$ (7)	$ 2
Non-service pension income		$ (1)