Supplemental Information (Additional Information) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Accrued Liabilities and Other Liabilities [Abstract]
Other assets, net	$ 694		$ 651
Deferred turnaround costs, net	420		391
Accrued and other liabilities	1,464		1,614
Accrued rebates	158		217
Estimated Litigation Liability, Current	267		297
Accrued income taxes	136		121
Noncash Investing and Financing Items [Abstract]
Capital expenditures incurred but not yet paid	112	$ 111
Asset Retirement Obligation, Revision of Estimate	16
Other Income and Expenses [Abstract]
Other income, net	50	22
Interest income, other	40	18
Supplemental Cash Flow Information [Abstract]
Interest, net of interest capitalized	52	54
Income taxes	46	23
Right-of-use assets obtained in exchange for operating lease obligations	44	$ 56
Related Party
Related Party Transaction [Line Items]
Other liabilities, current	$ 37		$ 41