Retirement Plans and Postretirement Medical Benefits (Pretax Amounts Recognized in AOCI) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Nonpension postretirement benefit plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (gain) loss	$ (16,405)	$ 15,175
United States \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (gain) loss	698,815	716,585
Prior service (credit) cost	(105)	(149)
Transition asset	0	0
Total	698,710	716,436
Foreign \| Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (gain) loss	297,753	301,913
Prior service (credit) cost	7,552	7,804
Transition asset	(7)	(7)
Total	$ 305,298	$ 309,710

Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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