Details of Certain Consolidated Balance Sheet Captions (Retirement Obligations and Other Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Details of Certain Consolidated Balance Sheet Captions [Abstract]
Pension and postretirement benefits	$ 188,999	$ 225,994
Deferred taxes	9,169	85,824
Operating lease liabilities	166,786	176,246
Legal and environmental	86,561	101,203
Uncertain tax positions and other tax liabilities	37,013	50,259
Other	30,320	54,286
Retirement obligations and other liabilities	$ 518,848	$ 693,812

Details of Certain Consolidated Balance Sheet Captions [Abstract]

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Retirement Obligations, Other Liabilities, And Lease Liabilities

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Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.

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Amount recognized for uncertainty in income taxes classified as noncurrent.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.

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