Retirement Plans and Postretirement Medical Benefits (Pretax Amounts Recognized in AOCL) (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Nonpension postretirement benefit plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	$ (13,425)	$ (18,511)
United States | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	647,221	633,733
Prior service (credit) cost	(45)	(65)
Transition asset	0	0
Total	647,176	633,668
Foreign | Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	343,268	350,007
Prior service (credit) cost	6,662	6,969
Transition asset	(7)	(7)
Total	$ 349,923	$ 356,969