Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Net operating loss carryforward	$ 103	$ 96
Credit carryforward	19	23
Operating lease liabilities	149	136
Accruals	96	68
Pension	99	64
Inventories	34	22
Research and experimental expenditures	94	0
Other	18	26
Deferred taxes assets—total	612	435
Property, plant and equipment	(1,301)	(1,134)
Intangibles	(272)	(288)
Operating lease right-of-use asset	(149)	(134)
Turnaround costs	(49)	(27)
Consolidated partnerships	(234)	(256)
Equity method investments	(237)	(223)
Other	(42)	(17)
Deferred tax liabilities—total	(2,284)	(2,079)
Valuation allowance	(47)	(4)
Total net deferred tax liabilities	(1,719)	(1,648)
Noncurrent deferred tax asset	16	33
Noncurrent deferred tax liability	$ (1,735)	$ (1,681)