Income Taxes (Deferred Income Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Allowance for doubtful accounts	$ 18	$ 17
Inventories	120	118
Pension and postretirement benefits	25	17
Environmental and regulatory compliance	37	39
Other accruals and prepayments	574	406
Stock-based compensation expense	115	105
Operating lease liabilities	252	238
Research and development expense	441	243
Tax credit and loss carryforwards	557	479
Valuation allowances	(234)	(236)
Total deferred tax asset	1,905	1,426
Deferred tax liabilities:
Property, plant and equipment	(125)	(92)
Insurance, including self-insurance	(315)	(803)
Operating lease ROU assets	(228)	(219)
Goodwill and other intangibles	(3,429)	(3,270)
Total deferred tax liability	(4,097)	(4,384)
Net deferred tax liability	$ (2,192)	$ (2,958)