Income Taxes (Significant Components Of Deferred Tax Liabilities And Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deferred tax liabilities
Property, plant, and equipment	$ 875	$ 903
Deferred Tax Liabilities, Intangible Assets	403	334
Deferred Tax Liabilities, Leasing Arrangements	214	223
Equity in earnings of affiliates	153	64
Deferred Tax Liabilities, Inventory	29	25
Debt exchange	53	53
Deferred Tax Liabilities, Deferred Expense, Reserves and Accruals	65	195
Other	185	173
Deferred Tax Liabilities, Gross	1,977	1,970
Deferred tax assets
Pension and postretirement benefits	137	163
Deferred tax assets, leasing arrangements	220	227
Stock compensation	53	80
Foreign tax loss carryforwards	465	470
Capital loss carryforwards	74	70
State tax attributes	21	79
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Reserves	158	42
Other	44	136
Gross deferred tax assets	1,172	1,267
Valuation allowances	(281)	(339)
Net deferred tax assets	891	928
Deferred Tax Liabilities, Net, Classification [Abstract]
Net deferred tax liabilities	(1,086)	(1,042)
Domestic Tax Authority [Member]
Deferred tax liabilities
Deferred Tax Liabilities, Gross	1,079	957
Deferred tax assets
Net deferred tax assets	27	0
Foreign [Member]
Deferred tax liabilities
Deferred Tax Liabilities, Gross	333	345
Deferred tax assets
Net deferred tax assets	$ 299	$ 260